SCIENTIFIC ABSTRACT LIWSKI, S. - LIYELAUSIS, O.

Document Type: 
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP86-00513R000930310015-9
Release Decision: 
RIF
Original Classification: 
S
Document Page Count: 
100
Document Creation Date: 
November 2, 2016
Document Release Date: 
June 20, 2000
Sequence Number: 
15
Case Number: 
Publication Date: 
December 31, 1967
Content Type: 
SCIENTIFIC ABSTRACT
File: 
AttachmentSize
PDF icon CIA-RDP86-00513R000930310015-9.pdf4.23 MB
Body: 
41 ftS lamh of Efobs:16 A Makifinow, 11, Okriu4ku &IW 9 'Awski- fal Put laub of lorlitarw of Me OmIdow fit" b"W ;,,`,W..'Driuszko (Rocs".Nauh rol., INS5, 71, A. 331-4W, 407-441).- ,L4,61~ A survey. Thu land, consist in river-type fortgati ol no tic= for agrictiltoral tourp,*a. (a] y with origgettions for ageizalturul us,.-s. P.S.ARUP. FOLAND/Soil science - organic Fertilizers. Abs Jour : Ref Zhur Biol-, 11o 22) 1958, 1o0094 Author : In5t : Title : Maksimov, A., Liwski, S- Saturated by Concerning the Fertilization Value of Peat, Ammonia Gas at Higii and Low Temperatures. orig Plb : Roczll. gleboznawsze, 1956, 5, 221-249 Abstract : In vegetational and field experiments: peat ' saturated by ammonia at hip)i (100-2500) and low (down to 500) tempera- tures, was tested, and its action was compared with ni- trogen fertilizers and a mixture of peat with ammonicm as of peat, saturated by at hydroxide. The advantage M13 low temperatures) was explained. The action of this fer- tilizer on beets insured a larger harvest than the appli- cation of Nan with the addition of calcium carbonate, In experimento ~jjth flax and winter rape) the action Of peat, saturated by.NH4) Was identical 'With the action of Card 1/2 - 68 - POL"ITD/SOil Science - Organic Fortilize4-s. Abs Jour Ref Zhur Biol., No 22, 1958, 100094 11 Milcture Of 11 and calcium carbonate. The NH saturated peateh9vred tile Yield of larger oat vests than N an and ofiall identical mustard harvest. III eXPeriment-s with rye Planted after oats, the after- effects of peat, saturated by insured an addition to the har NH4 at low temperatLxes, vest of 1.6-5.2 c/ha, in co=.arison with the action of pK. saturating peat at high temperatures, Ammoniacal enters into com- Position of stable "on-arsimilable-by-plantf; compo~,,nds. -- S.A. Nikitin Card 2/2 LIWSKI Stefan Role of copper in the fertility of peat soils. Rocz nauk roln rool 87 no.3:437-470 163. 1. Katedra Torfoznawstwa.9 SzIcola, Glowna Gospodarstwa Wiejakiago., Warszawa. 1%. LIWSZYC. A. Some problems of the technology of electric-discharge machining methods. p. 401 MECHANIK Warszawa, Poland. Vol. 32, no.8, Aug. 1959 Monthly List of East European Accessions (EEAI) LC, Vol. qNo. 2, Feb. 1959 Uncl. LIWSZYC, S. Nfw paths In endocrinology. Przegl. lek., Xrakow 8 no. 4:85-92 1952, (CLML 22:5) LIWSZYC, S.; ZYGUISKA-MACHOWA, H. Blood sugar curves of the rabbit after irritation of the respirator7 traot, Frzegl. le1c., Krakow 8 no. 11:338-341 1952. (CIXL 23:5) 1. Of the Institute of General and Uperimental, Pathology (Head-- Prof. B. Giedoes, M.D.) of Krakow Medical Academy. LIWSZYC, 5.*,ZYGUISKA-14ACHOWA, H. Blood svgar curves following irritation of the respiratory tract in rabbit; further studies and conclusions. Frsegl. lek., Xrakow 9 no.2: 55-57 1953. (CIXL 24:5) 1. Of the Institute of General and Experimental Pathology (Head--Prof. B. Giedosz, M.D.) of Xrakow Medical Academy. LInZYC, S. -1 -f low tr*nds in PCG vacclmtion. Prsogl. lek., Vakow 9 ne.11: 272-275 1933. (CM 23:3) LIVSZYC, Stanislaw Bronchial asthma in adolescencee Viadomosci lek. 7 no.3:171-173 mar. 54. (ASTHKA, In adolescents) (ADDISSCINCI. diseases, asthma) _kP LS7_,TQ,._*U 49 19 law I.-- Bronchlectasis In adolescence. Wiadozoect lek. 7 no.9:500-502 Sept 54. (ADOLISCENCII. diseases, bronehlectasis) (13RONCH330TASIS, In adolescence) LIWSZYC. Stanislaw; OSTIRCZY, Zbigniew. Largactil In severe uremia. Polski tygod. lek. 10 no.40:1319-1320 3 Oet 55. 1. T III 111niki Uhorob Yownstrsnych A.M. v Irrakowis; kierownik: prof. dr. J.Aleksandrovios. Krakow, III Klinika Chorob Wow strznych. (UFMIA, therapy, chloropromazins) (CHLOROPROKAZINS. therapeutio use, uremift) LIWSZTC, Stanislaw (Krakow) , :;I;! , -.4=~ General iritating syndrome or Reilly's syndrome. Przegl. lek., Krakow 11 no.2:45-51 Feb 55. (AUTONOMIC NERVOUS STSTAX, diseases general irritation, Reilly's synd.) -V 4A LrWSZYC. Stanislaw; POLATTNBKA-WECIAWOWICZ, Joanna pws~ Iffect of irritation of the autonomic nervous system on the function of the kidneys. Przagl. lek., Krakow 11 no.3:70-?2 Mar 55. 1. Z zakladu potologii ogolnej i doew. A.M. w Krakovie; kier. prof. dr. B.Giedosz. (101111S, pbvsiolog7 off. of irritation of autonomic nervous system) (AUTONOMIC MVOUS STSTIM, pbysiology eff. of irritation of kidneys funct.) LIWSZTC, Stanislaw (Krakow) lzmy~ Common bronchial catarrh; pathogenesis and mmmifootations In relation to the ages Prsegle lek., Xrskov 11 no.3:76-78 Mar 55, (BRONCHIT 19' - - pathogen. & nanifest. in relation to age) LIWS-'TC. Stanislaw (Krakow) ~01 Isnases and the vegetative nervous system In current research. Przagl.1ok,Kridcow 11 no.4:103-106 '55, 1. Z Zakladu Patologil Ogolnej i Dows. A.M. w Krakowte. Kisrownik: Prof. dr B. Giftdosz. (AUTO,1T0!1TC !T.MVOUS SYST31, in various diseases commun. dis., current concepts) (C"I"4TUITICABLn DISMASES, physiology autonomic -NS. role, current concepts) LIWSZYC, Stanislaw; POIATYNSKA-WEGLAWOWICZ, Joanna, Krakow. Effect of irritation of the autonomic nervous system In kidney function. 2 communication. Przegl.lek., Krakow 11 no.9:277-279 1955. 1. Z Zakladu Patologii Ogolnej I Doswiadezalnej A. 14 w Krakowis. Kierownik: Prof. dr mad. B.Gledosz. (AUTOTIOMIC WVOUS STST34, physiology, off. of irritation on kidney funct. In rabbits) (KIDNEYS, physiology funct. off. of irritation of autonomic NS in rabbits) T,IWSZTC, Stanislaw; SURDACKI, Alsksander Case of Xartagenerts syndrome. P018ki t7904- lek. 11 no.12: 541-542 19 Har 56. 1. Z II Kliniki Chorob Wewnetrzrqch A.M. w Krakowie; kier.: prof. ar. Julian Alekaandrowicz. Krakow. u1. Szlak 14. (KAWAGINZRIS TRTAD, case reports. (Poi)) LIWSZYC, Stsiaislaw; YMMOWICZ, Kurt Karol; OSTICRCZT, Zblgniew; POLATYNSXA-WWLAWOWICZ, Joanna Vegetative factor In pathogenesis of nephrItIs and In attempted aDplication of phenothlazine derivatives. Polski tygod. lek. 11 no.22:977-981 28 MaY 56. 1. Z Zakladu Patologii Ogolnej I Doswiadczaluej AM w Krakowis; kier. prof. dr. Br. Giedooz I z III Kliniki Chorob Wewn. AM w Krakowie; kier. prof. dr. J. Alaksandrowicz, Krakow, ul. Kopernika 17, 111 Kl. Chor. Wewn. (NIPHRITIS, experimental, autonomic factor In, eff. on chlorpromazine ther. (Pol)) (CHWRPRDWINZ, effects, on exper. nephritis, autonomic factor in (Pol)) (AUTONO"IC NMOUS SYSTIN. in various diseases, exper. nephritis, role in chlorpromazine ther. (Pol)) LIWSZYC,, St. 3t. Liwszyc, K.K. ?romowicz, Z. Ostcrezy, and J. Polatyn3ka-Wfecpawowicz, ")Ile Rolle !es neurovegetativen Faktors in der Pathogenesp ler ITiereneritzuenlur,g wil Ver-vuche ihrer Behanilung nit Yhonothiazinl3rivatpn," '),v, Oeutsch,- ~~e-iunjheit5wesen; Zcitschrift. f-ler I'adizin (Rorlin), 11th Yr, Wo 30, `6 Ju-177, -p. 1012. Rouzh Transl. of Title; The Rale of ','euroveeqtative Factors in the Fathoeeliests of erliritis arvi the Jnvostl,,ati,~n of Its Treatrwrit with Phenuthiazine Derivitives. From the ItAtitute for ilrenerall aril Medical AzMem,7, Krakow (healel by Frof. Dr. Glelosz) and from the ~,o. Clinic for Internal .M'edical Acalo~riiy, Krakow (hcalul by 1'rof. J. Aleksandrowicz). V 0 '1 li I ize rs xicolosy- Yr~111( , . Ab.s jour ~ef /jhur-BiOl-' No 8, 1958- 3?'~38 _OlRtynska-""recla-wOT,'icz i Author Inst Not Eiven tion of the ~,jutomatic Nervous Title Effect of o'-ti::-.ula 3ystem on Renal L-anctions and the -Results of an .1ttempt to Prevent a Renal Nervous Reaction with the Help of Lar,,~actil. Report III. (Vliyaniye ra- zdrazheniya vegetativnoy nervnoy sistemy na de- yatellnost' nochek i rezulltati popytki Dredot- vratnhcheniya nervnoy reaktsii ochek pri pomoshchi largaktila. -)oobsllcheniye III S. Orig E-ub Llrzel. lekar.1 1956, 12, T.,o 2, 55-59 Abstract The irritation of a oisected jugular bag on the necks of rabbits with a 5% solution of quinine chloride or with urea produced albuminuria and Card 1/2 Poland/Phax-macOlo~y. ToxicoloC H )y. Irancu-11'.7,ers Abs Jour : Ref Zhur-Biol., -,o 8, 1958, 37488 Abstract : hematuria. Anesthesia or the preliminary appli- cation of phenol to the irritated section re- moved this reaction. The administration of lar- gactil intramuscularly 30 to 40 minutes, or intra- venously 15 to 20 minutes before the experiment in doses of 1 to 15 mg/kg removed or -weakened this effect. The DOssi")ilitY Of clinically uti- lizing the above aata is indicated. Card 212 LIWSZTG, Stanislaw; FROMOWICZ, Kurt Karol; JAHICKI, Kazimierz; RUDKOWSIU, Irena Intravenous administration of chlorpromazine in pulmonary edema. Polski t:,god. lek. 13 no.24:915-917 16 June 58. 1. Z III Kliniki Chorob Wevnetrznych Akademii Med7cznej we Krakowie; kierownik: prof. dr med. J. Aleksandrowicz. Adres: Krakow, ul. Kopernika 17; 111 Klin. Chor. Wewn. A. M. (PULMONART EMM, ther. chlor-promazine, intravenous admin. (Pol)) (OHIDRPROMAZU09 ther. use pulm. edema, intravenous admin. (?o1)) LIWSZYC, Stanislaw; GUZEK, Jan. W.; MIKULOWSKI, Phwel Effect of reflexes from the palate on kidney status. Polski tygod. lek. 13 no.25:953-956 23 June 58. 1. (Z Zakladu Patologii Ogolnej i Do9wiadozalmej Akademii Ned.Vcznej w Krakowie; kierownik: prof. dr mod. Bronislaw Giedosz i z Zaklada Anatomii Patologicznej Akademii Medvcznej w Krakowie; kierownik: prof. dr med. Janina Kowalczykowa), Adres: Krakow, u1, Czyeta 18; Zaklad Patologli As Ke (PAIATZ, physiole off. of BtImlation of aoft palate on kidney funct., reflex mechanisms in guinea pill.. (Pol)) (K.,DSM, physiol. same) (RZ?izc mechanism of kidney response to atinalation of soft palate in guinea pig (Pol)) try* Synthetic orewAc caemifitry- MW-IA/Orgenic Chenis 4~ 19511) 11295. p,bs JOUr: Referat ,a, Li%sndru T. Cocea) BO) inogbenOls Author Matei, 1.) cbnil- Inst'tutd. and. 9- laejpolyte U Of Beuzoia vita M- ) (in Inst ~he COUden'stio 2 89-99 (1955 Title 1 1 NO ; d RIISsian) Bull Inst, politebu las 0 v an orig pub. V=v3nisn With avnm~es i7u German )in (1) vith S s, substaUce .ion of benzla, CH Coon give Jch is probriblY t. The Teact aUl 0; C ov CGiJ v' and Of Nbstrac ,resence Of 2,nC'2 v' _Cou,,,o,e of the ~he f6enerej formii~ 1115 -6~ r _arno c H,4041112 .C Condi- d,, e e aubs-Wmee tilo ~~r e of 2,3 e a mixtur rlvgt e suln ert ijnder ..tyl de see cell ll~lv'ng ,he its 14-ac structure A.- ) give substal-I probable and P-ami eao tions I & Card 1/3 RUMANM/Organic Chemistry. Synthetic Organic Chemistry. G-2 Abe Jour: Referat Zhur-Khimiya) No 4, 1958, U295, pitation with water from CH3COOH); the benzene-insoluble fraction of the precipitate on treatment with alcohol gives 3.2 gms crude IV, mp 2550. On refluxing with (CH3CO)2 0 111 forms the completely N-acetylated deriva- tive C22H1702N. Similarly a mixture of 6 gms I and 8 gms V gives 1.5 gms VIII, mp 270-2710 (from benzene). The alcoholic mother liquor remaining after the separation of VIII is evaporated to dryness and the residue is trea- ted with ether. The ether-insoluble fraction of the pre- cipitate yields o.6 gms vi, mp 1660; the ether-soluble fraction yields 4.5 gms VII, mP 900. IV, VI, and VII are purified by precipitation with water from alcoholic solution. Card 30/3 14ATEI P Ilie, prof.; LIWDRU, T.; COWITA, E. Mechanism of the condensation reaction of acenaphthenequinone with p-aminophenol in the presence of certain complexing Balts; ZnCl2P CdC12., NiC12. COC12- Studii chim Iasi 11 no.2:281-289 160. 1. Catedra de Tebnologia subst. organice, Institutul Politehnic Iasu. 2. Comitetul de redactie,"Studii si cercetari stiintifice, chimie4(Academia R.P.R., Filiala Iasi) redactor responsabil; membru corespondent al Academiei R.P.R. (for Adtei). (Condensation, Chemical) (Salts) LITALETDIMV, A.H. Phosphoric acid mobilization in phosphorite-mnnure composts as related to the vital activities of micro-organisms. Trudy Inst. mikrobiol. i virus. AN Xazakh. SSR 3:181-192 159. (MIRA 13:2) (COMPOST) (SOIL MICRO-ORGAITISMS) (PHDSPHATES) LI "Diffraction theory of noise due to turbulent flows and boundary layers" report submitted for the 4th Intl. Congress of Acoustics, Copenhagen, Denmark, 21-28 Aug 1962. Acoustical Inst. of the Acad. of Sci. U.S.S.R., Moscow. LITANSKIT, M. Alekftndrovals brigade marches in the front ranks. obehchegtv.plt. no.10:6-8 0 160. (MMA 13:11) le Direktor stolovoy NO-5 g-Tashino. (Noscow-Restauranto# lunchrooms, ate.) USSR/Cultivated Plantz Fruits. Berries. Abe Jour : Ref Zhur Biol., No 4, 1958) 15747 Author : 14. Liyas Inst - Title : Winter Damage to the Fruit Trees at the Yygeva Selection Station. (Zimniye povrezhdeniya plodovykh sadov Yychvaskoy selektsionnoy stantsii). Orig Pub : Sotsialistlik Pollumajandus, 1957, No 3, 120-121. Abstract : No abstract. Card 1/1 135 'ruits. Derric-s- 68349 40 11,7 ur J,b S JJ r -s ,,utiaor Inst V;Jnter-li 'Y Soodlinj;s .,yith T itlc Tvl 19572 No 87 Y~6-357 Orill, 1-jub Sot cultiv,,%tod C-urilli; thi vint~x of lLbstr'ct po"tr strains ~crucl sOvOrOly fro-" frost and SS jq~'5/19561 sufl trjj~, j, pc;ishod alriost cJT'Plo at our -rdonor na.-nod Yukic In tlic glaro,,~;n )f rill '171 soadlijIGs did in T,-Ttul tjIj,-) -,jntcr-h-irl~y I)WIr-I Gx,~ yiclds vuf f or v!intor frostS f~lll 'Ut no j S of fruit por troo. h of 125-150 kilcgrOlIS c,,lrl; th 'Y is - trooS VQr,-~ -tbout 20 Y~-; :,bso- .,by their sturc~Y j;-ro, 'AhI t h -,j ir - tinj;uishc;d anf~ 1~1.ck Of d~lf-ctso lut-,; rosistanco tO cul(-Ii Card 1/2 LIYBASHE-TTVC,_Ya- S. "DiBeases of Wild Animals." Collectlid ',,,Torks. Under the e(3itorship cjf S. Ya. Llybashenko, Moscow iel'Mozfliz, 1952, 456 Pages with ill-tistrationn. SO: Veterinariya; November 1952, Unclassified. Trans. ;,-`155 by L. Lulich A PHASE I BOOK EXPIDITATION SOV/4466 Akademiya nauk Estonskoy SOR. Institut fiziki I astronomii Issledovaniya. po Mike atmosfer7, Vyp. 1 (Research on Atmospheric Physics., No. 1) Tartu, 1959- 107 P- 800 copies printed. [In Russian and English.) Editorial Board* J. Ross (Chairman), O.A-,4&te, Kh. Liydemaa, and H. Ark; Ed.: Kh. Niylisk. PURPME: This publication is iYatended for geophysicists, meteorologists, and astronomers. COVERAGE: This is the.first issue of a new serial publication put out by the Sektor fiziki-atmoaiery Institute, fiziki I astronomii AN Estoaskoy SSR (Sector of Atmospheric Physics of the Institute of Physics and Astronomy of the AcadeAy of 9ciences Estonsloys SSR) on research in the physics of the atmosphere. The pablication is to appear at Irregular intervals,(l - 2 issues per year) and vill, for the most part, contain papers in actihanetry. Issue 1 contains articles dea3ing with radiation intensity and the characteristics of atmospheric trans- parency, spectral reflectivity of vegetation covers, and a discussion of C ard l/ 3 Research on Atmospheric Physics, No. 1, SOV/44& Makhortkin's index of turbidity. No personalities are mentioned. An English summary follows each article. References accompany each article. TABLE OF CONTENTS: M,Wrk, H. New Formula for Radiation Intensity and New Characteristics of the Transparency of Atmosphere 7 Murk, H. Nomogram for Computing (and Reducing] Certain Characteristics of the Transparency of the Atmosphere 15 Murk, H. Rationality of Makhatkin's Index of Turbidity N 26 Ross, J. Effect of the Radiation of the Solar Aureole on the Calibration of Thermoelectric Actinameters 43 Ro ssp J., and 0. Avaste. Diffuse Radiation in Tartu 53 Tooming, H. SpqctrallReflectivity of Com Leaves in the 400--750-m (Wave-Length] Range 68 Card 2/3 Research on Atmospheric Physics,, No. I sov/4466 TocMing, H. Some Problems Concerning the Distribution of the Total Radiation in the Vegetation Cover 83 The author than'ra Yu. Ross. AVAILABLE: Library of Congress Card 3/3 65971 ? Szgi/5: B-59 - 4 -94-33 Translation from: Referativnyy Zhurnal Fizika, 1959, Nr 4. p 288 (USSR) AUTHORS- Lushchik, Ch.B., Liyd'ya, G.G. TITLE: Exciton Capture Centers in Alkali Halide Crystals Activated by Mercury- Like Ions PERIODICAL: Tr. In-ta fiz. i astron., AS Est,*33R, 1958, Nr 7, pp 193 - 226 (Eng. r6surd6)--- AB3TRACT: The authors investigated the changes that arise in the absorption and in the excitation spectra of KBr crystals activated by mercury-like 4. 2+ 2+ ions (Ga+, In , Tl+, Ge J, Sn , and Rb2+) after X-ray irradiation and illumination by ultraviolet radiation in the region of activator and exciton absorption bands. On the basis of the obtained results and the data in the literature the authors examine the interaction of excitons wit impurity and intrinsic crystal microdefects serving as "exciton th Z, dissociation centers" and "exciton nihilation -nters e former . . + + ex __* :~~ may be divalent impurity lons, e,g M M ex - M e + p wlt~. subsequent hole localization in the cation vacancy (this was demonztrati:d Card 1/2 experimentally for KBr-Pb, KBr-Ge, and KBr-Mn), while the latter may be 65971 SOV/58-59-4-9433 Exciton Capture Centers in Alkali Halide Crystals Activated by Mercury-Like Ions monovalent impurity ions, e.g. N+ + ex--* M+ ex-ip, M+ + hV (M Is the impurity ion, ex Is the ex0iton, e is the electron, and p Is the hole). The phenomenon of the de-exciting action of X-rays was investigated in NaCl-Pb, KBr-T1, and KC1 phosphors. The authors discuss the exciton mechanism of this phenomenon. The de-exciting action of excitons in KBr-Pb is experimentally confirmed. A study of the optical decoloration spectrum of the F centers in KC1-Ca, Ag showed that the F centers become decolorized not only in the F and V absorption bands but also in other electron absorption bands. The bibliography contains 84 titles. G.G. Llyd'ya Card 212 65970 .'9t" j 1/ 00 SOV/58-59-4-9422 Translation from: Referativnyy Zhurnal Fizika, 1959, Nr 4, p 286 (USSR) AUTHOR: Liyd'ya, G.G. TITLE: Study of Negative Excited Absorption in Alka."i Halide Crystal Phosphors PERIODICAL: Tr. 3-Y Stud. nauchno-tekhn. konferentsii Pribaltiki i BSSR, Riga, 1958, pp 8 - 18 ABSTRACT: The changes in the absorption spectra of single crystals of KBr-Pb, KBr-In, and KBr-T1 were investigated after excitation by X-rays and ultraviolet light in the region of the exciton and activator absorption bands. X-ray irradiation as well as excitation by ultraviolet light in the region of the long-wave fall-off of the exciton bard of KBr crystals with a divalent admixture of Pb2+ leads to the appearance of considerable negative excited absorption in the activator bands of Pb2+. The effect in the case of X-ray irradiation is explained by electron capture by the Pb2+ ions, and in the case of irradiation in the excitsn band it is ex- Card 1/2 plained by interaction between the excitons and the Pb + ions, the lead 6 5 97 0 SO'1/58-59-4-9422 1,3tudy of flegative Excited Absorption In Alkali Halide Crystal Phosphors capturing the electron while the hole is localized in the intrinsic lattice micro- defect. In crystals with monovalent admixtures (T1"-, In+) this effect is considerably 1~/ less pronounced. The bibliography contains 12 titles. G.G. Llyd'ya Card 2/2 *4(4) AkadC=Lyft naLm Ukmtn8moy lAjLLt,j-_ rjzjki FQ%MeX4ktrtcho$kjyit t cptl-1h--AklYii y'ivj~.nlyl v poluprovoilmlWakul tXMdY P4rvcgQ Vst'30;;U-n0gj acV.,zhutanLya Vo fot4,J~ktriCA*s1C%A I OptlChalklm y3vlcnIy.,w v pjluprovodnlalk~h. g. Klyev. 20-2* "Y&brY'L 195f 9 (RnOtOnlectric ana Optical Phenomena In Send. oanductores Transaotiono nf rn,! Virtit Conr,,ronrn on Photoolagu-Iq and Optical Ph,,nomuna In S"1ocndaator3... ) Xlyov. 1959. *03 p. 4,000 *opt** prxnt~4. AddItIonal Sponsoring Agcncys Aka&mlylt nauk =R. Pretldlum. SOMISSLY& PO PolurrOvoarilkazi. 1, - 1 ad. or PablishIng Ho-4se 1 1. V, XIALnn. T01h. J;d. t A. A. Ma tveyeh"k Reap. R4.% V. Ye. Lashkarov, heacmiclon, Ukr3lnlan SSR, Acadmay or Sciences. PUFJOSAI This book In lnt~nacd ror salontlato In the field or sesi. conductor-ri rates, solid ntate apectro3copy. and smiconducZa r - devices. The collection .1 be us;iNI-c6 xltvii~d-ed wiudcnt~ b universities and Institutes or htgn,!r t~cnntcal training specializing In the physic* and teonnIcal application of coml- sondua tars. COVERAQRS The collection contains reports ard Information bullett-ne (the letter are Lndlo4ted by aatartiK.1) r,!ad at the First All- ftlon Conference on Optlc3l ',n1 1naL.>elec-r1c Ph"ocena in 3eaLl.- condu tars. A wide scope of problems In semSconouctor pnysl.--* = and t ology are considereds photocomejetIvItys pftntoelsc"r>- active forces, optical properties, phot"loetric calla and photoreal4tors, the actions of hxrd and corp4moulAr re4tatlorm. the properties or thin fIlm3 and com-plex imleonduator systems. etc. Tits materials were prepared for publiextion bY E. 1. Ra"boy. 0. V. 3tiLtko, 9. B. Tolpygi, k. F. Lubehankoand 14. 1. Shernkman. References and dIUU33io. ro.,iow each IrtiOlle. I Photoelectric and Optical Phenomena (cint. 3OV/31 %0 r X P. Zakharchenys, and E,1~2w-lnsklY- - an Lulton (Thesom ) p&str"y&k, 1. Phob&eJectrIc Propertloo of a )4-91-30ftl- -.-Ed~tao t - and - ~ 8 d- 0 purities ciitUa 1"OtO61-6tri 1ron Zm L ,P,r--Iea of Cuprous oxide Andriyovakiy. A. I.. and A L.Jjta:bAx. The ?I'0M0m*nQn of Photoelectric *PRtI91bIiit7- [Sensitivity D1,21nut-20ol In Cuprous Oxide ,djQ_2--j,~ ThWJtfreCt Of aft lOnIC U d the r-inescence of Cuprous Oxide ji,..~td~.: 1ULV=LX-M1-D-. P. M. Zattov. and . sp~t-opmtoa.trlc invest1gAtion of fro-gtron-Hol. and Mxc~ton Photoelectric and Optical Phenomena (Cent.) 3CIV/3 40 rrocep&se in AlkAll-Ralold Crystals xegative Photoconductivity or 3#1"lump JF~tcoiectrlc Cella With Positive 319m of Me YhOtOolfitr* active Fares Koloodyets. S. &W DI4Vl&cms*nt or L. 9040 A ... rptlon NMd In Vltr*."* 3emiconductorif or the 3yst::4-Amo1 -AS2T03 2303 ISO I-At I I.. and " _So,;;~y v, osrapftld Invoffitig of t-he COMPOsItIO" Of %A&4 Sulfide Photores.6tors ACCONX LV:)1YA, G. G., LUSHCHIK, N. Yo., SHVARTS, K. K., LUSHCHIK, Ch. B., and YALK, I. V. Physical Processes in Alkali Halide Phosphors Activated by Mercury-Like Ions Ch. B. Lushchik, 1. W. Jack, G. G. 1:~dja, N. E. Lushchik, and K. K. Schwarz Physics and Astronomy Institute, Academy of Sciences of the Estonian S.S.R., Tartu., U.S.S.R. A number of alkali halide phosphors activated by monovalent and divalent ions having the electronic configuration of neutral mercury were prepared. Diffusion and precipitation of activator -ions were investigated as were absorption, emission, and radiationless processes within the impurity center. Energy transfer by means of excitons and electron-hole pairs between the luminescent center, the host crystal and color centers were also studied. Report presented at the 117th Meeting of the Electrochemical Society, Chicago., 1-5 May ig6o. 24663 S/081,/61/000/009/003/015 B101/B205 AUTHOR Liyd'ya, G. G., Yaek, I. V. TITLE: Formation of F centers in the KI-Tl crystal by ultra- violet rays PERIODICAL: Referativnyy zhurnal. Khimiya, no. 9, 1961, 31, abstract 9[D213 (9B213) ("Tr. In-ta fiz. i astron. AN EstSSR", 1960, no. 12, 281 - 284) TEXTs The formation of F centers in monocrystalline layers of the KI (T1) phosphor has been studied in detail, It was found that the accumu- lation of light energy exhibits three different mechanisms, depending on the excitation energys an electron-hole, an exciton , and a "delo- calized" mechanism (RZhKhim, 1960, no. 9, 33849), all of which lead to the formation of F centers. The luminescence of KI(Tl) during excitation has also been studied. The steady luminescence consists of two compo- nents, i. e., a '9rapid" (fluorescent lifetime shorter than 1 see and a "recombinative" one (fluorescent lifetime of the order of I min.. An Card 1/2 211663 4- S/081/61/000/009/003/015 Formation of F centers in the .... B101/B205 external temperature quenching is observable during excitation within the main absorption ranget The recombinative part is quenched at 260 - - 3700K. This occurs long before the internal quenching sets in. [Abstracter's notes Complete translation.] Card 2/2 68331 AX".11OR" Yuelc, I.V. und Li, ya, TI T LE S.-kcitat, iori of aecvrtirt~.ticri i:i the Baneic .)f ~ortuin Fnlidesi N*RIMIL~.L. Opti*-a i 1~iCOj Vol 6, '!r 1, -;,- 142-144 0.*.;,"~,; 1wninesceiun of' ricti-tator ionzi ii, axeltod in the bands of alkali-halide j.hor-phor:;. Trawfor of f-,. tho "F%zet- the activator may -,;c,ir via e-~.cltcr& or a- R ro.,,,jit o,' proc^05Ges. In 4:v1,) latter Qi-,r) --1-L+rcn recarbinuti.-,ii lu-minaZzence Iti possible (froo r-.(:cn111n5 -,Ith li0oz lu-~111 7rV1 ~~t oi- nnar 11-,....-.,,,.~i-reu cr licla rozombinati.-.- ~umlne6~onc- (I-Onti racx:ihi.-,n Y,.'th electror.; c.- near Ituainescenco c3ntres). The relativo ;_mz:crtan-s usin.- -3x,;3tuticn zpo~,,tra of %nd recombln~tion 11--'noucence (phcaphr).-):;,;-).-.c~.j. Thi. wai aztonded to absorptlon u.,irds csrr,5z-rAjn,, tc, e1:--_!,t(;:,. fonz--tion anl i~kinj-_LiInV trunsitiorz. (;C.I;Tl, RUM, C,11.-;Pb) with fund ruaental abccr~Aicr harl.; 1-yIng I,- the region ),>165 =)A Yare the obj,)t7,ts of this ri L,:cltatlon spctra of yhc,~piorns(zonc(j ,-.!r-3 tho finction'; 1 .'2), 8331 zx(Atatlor- of R,3,,ombiratlon Ltvaines;!once ir the i'undfmamtal i~an'L-. 7,f where 11, .1r, the Intinsity of .,ftor61w.-i at t~, tiris t slocti ~1' excitat on, ana B(P) ii tbo intonr.1ty of th~ -i-citlr-y o r th. 0 A cond1tions of total Ont;orctim (noFlectln6 ra-fl9cti.cr. I o -i t., tliiDi functiori aro th,3 piiwiphora-cenco yipla Spectra. T ho, '-r!ru excited usir.G IlCht of 186-225 ~rjs .[~,wi a condenEuvI a-uirL- Zn, Cu, Al 31eQtrodes. In the rr-.6ion ).> 210 m,, Cho phrinphorz %.siro al~60 r '.-d1th lidit 'ru:; a h~droGon lalup tbrou&h it ~,ionochr--j:,-vtoz cf spectrophotometor SF-4. The quantity B(V) &croon. Fhosphor-,b-Pnnc,) -mis ri,-~ccr-3~d -pith a pboto-~',,~ctrie i-bAi2,r,?tr~r, con:,,14t1mL of FZU-10, 9. J.c. triclifter and Fin pot anti ometer SFF-09. A spacial that th5 intenjItj of ll;iulnea.-~r.nco vias proportional to the intgn.11ty of the oCCAUn. !I,-ht. A figuro cn p 143 Gho-7js the ab5orption scectmm uf tho bals) (-.1 'lr-vc 1) the oxcitutloL sps-etmn of -,,ho:;phOr6scnn . co, (Curyc' Fini luminescrince. (v.:r-r. 3) 1- Fi ---:1th 0.0( mol, f of T1 (tho the f1pra an3 of Rbl.-Tl (the lovie:- rart of th,~ flEl-lro)' -.s) nAdtatlor ) , 7, s~utvq of tho raiialninF lolido3 Tl-!rnc~ re7iow: an b,.i dist1n&nAs)7.,3d In. tho P-L-Rorption spec-trun-: t1no v-.+;1rF-tor a-b!;vrptio- --* "~Pj 4 (traneitiona I-S 40 L r-nd la Tl~ r-re',.tcrn R',~'vrptioui Iva r"' (ey.) and the Pbsorptior% corro~pmiln6 to O~nrl. ' tranj (e + ~) . Y 81917 ;2, q, 3 S-0 3/05V60/009/01/012/03l 3201/segi AUTHORS Lushchik, Gh.B., Uyd'ya, G.G., IL&O-141-T. and Tlysler, B.S. TITUs The Mechanism of the Recombination Lumineacenco of Activated Alkali- Halide Crystals IWODICALs Optiks i spoktroalcopiya, 1960, Vol 9, Nr 1, pp 70-16 (USSR) JkBSTRAOT: This paper was presented in an expanded Torsion at the Conference on Physics of Alkali-Halide Crystal* (Tartu, June 1959). The author* report and discuss the results of an investigation of the recombination luminescence (due to recombination of eleetions and holes) and photochouical trajuitions (optical bleachi~;) in 1101, Or avd 11 crystals activated with Ga+, G*4+, Za4 , Sn", T1+ ani Pb++. Thb crystals were excited with X-ray& and lig~,t in the region# of exAton and activator absorption bands and of the llb"A-barh" transitions~ The role of electron, hole, exciton and sevAltization procoqc*e it discussed. The discussion is illustrated by excitation, luminosccue*, thermolusines cones, optical flash stimulation, optical and thermal Card 1/1 bleaching spectra (Figs 2-5). Thero are 5 figures " 32 xeferonc.*t. 30 of which are Soviet and 2 Inglish. SUEOTTIDs aeptswbor 28, 1969 3 3, 3 _3 3YI 0 7 // 31,/ 3 v G, , T .11 p_yd'ya, G .5. ity r a OrIgination --if P-center 1z, 1961, 1~~4 PERIODICAL-, Referativnyj zhurnal, F~ ka, ric. _ i a:~tr-:i. AN 19-~~O n-:. 12 '261-284) .n-ta, fIz, detail ~h(, !RXT? 1,1,,e al;-,h~rs in in mcnc~ry3?-.ajj!-p_ j8v=r!! Eubjec-ed to irradist .ion ty ultfavlcl~** ray3. The exper,m,~n~,s cnnd,j:tPd h av e _n-~, v,-charoim- cf I!gh7, energy ca- - ?~- ~ shewn tha_-~ Al-ree differp I - IIa namelp rc-, -r, chanism -hrle, X,) - al way!?. Vni-- of K-.--' a~_ir,_ng dependent cn r,,. F_ci~nters are ;_r6a'Aal '[j tior. wp fr n', !h- w9v- W., of tw the ra,A~-- -)f WhIch PLb 5 tra c. e r' 5 r L Card 1/1 LUSHCHIK,, Ch.B.; LIYDtYA, G.G.; LUSHCHIK, N.Ye.; MARTS, K.K.; YAEK, LV. Pbysical processes In alkali halide crystal phoBpborB activated by mercury~-like ions. 'ciz.tver.tela 3 no.4:1176-1184 AP 161. (MIRA 14:4) 1. Institut fiziki I astronomii AK Sstonako7 SSR, Tartu. (PhOsphors) It 31-116 3/61 61/000/014/010/019 9, tl 114 -3) D207YD303 AUTHORS: Liyd'ya, G. G., and Yaek, I. V. TITLE., External thermal and optical quenching of KIM photo- luminescence SOURCE-. Akademiya nauk Estonskoy SSR. Institut fiziki I astrono- mii. Trudy. No. 14, 1961. Issledovaniya po lyuminest- sentsti, 236-246 TEXT: The authors studied the effect of external quenching (heat- ing and Infrared F-band illumination) on luminescence of the KI phosphor containing 0.05 m01. & Tl; external quenchi-ag means pro- cesses ocovrring outside luminescence centers. A thin layer (4,u) was used and the Tl+ emission was selected by means of filters. The phosphor was excited with short ultraviolet radiation in the fundamental absorption region. Excitation at IL = 219 iqu produced anion excitons and at A-= 186 mp it generated free electrons and holes. The rise curve showed that luminescence consisted of two components: A "fast" component which rose to its steady-state va- Card 1/2 S/6 t 1/000/014/010/019 External thermall and ... IrD3 D207 D303 lue in less than 1 sec from beginning of excitation and a "slow" component which reached the steady state in about 1 min. The fast component exhibited no optical quenching (it was unaffected by F- band illumination), but it was quenched thermally at 500 - 6000K. It was, thereforeg concluded that the fast component represented "direct" excitation of activator ions. The slow component was quenched thermally at 250 - 3500K, indicating typical external quenching of recombination luminescence. F-band illumination (A-= 680 rqu) quenched the slowcomponent when excitation produced inter- band transitions, but the slow component was enhanced when ultra- vio'let excitation generated excitons. A. simple theoryv accounting for the observed quenching and enhancement of the Blow component, is given in the paper. Acknowledgment is made to Ch. B. Lushchik who directed this work. There are 2 figures and 21 references: 19 Soviet-bloc and 2 non-Soviet-bloc. The references to the English- languaga publications read as follows: H. Klasens, Nature, 158, 306 (1946); F. Seitz, Rev. Mod. Phys., 26, 7 (1954). SUBMITTED: August 9, 1960 Card 2/2 S/61 61/000/014/013/019 D207YD303 AUTHOR: Liyd'ya, G. G. TITLE: The mechanism Of interaction between excitonB and Tl ions in the KI:T1 phosphor SOURCE: Akademiya nauk Estonskoy SSR. Institut fiziki i astrono- mii. Trudy. No. 14, 1961. Issledovaniya po lyuminest- senteii, 272-275 TEXTg The author reports a study of transfer of the absorbed opti- cal energy from excitonB to Tl+ centers in KIM crystals; this energy is subsequently emitted as Tl+ luminescence. Experiments were carried out at 1200K. Two quartz monochromators of(-t-1 (SP-4) iype and a photomultiplier Oay-4 (FEU-18) were used to o tain emission spectra (excitatioh wavelength fixed), excitation spectra (emiseion wavelength fixed) and absorption spectra. The following were recorded: Absorption spectrum in the 4-6 eV region; excitation spectra of the 2.9 eV (3p 1-41.1S0) emission and of the F-band flash; Card 1/ 2 S/61 61/000/014/013/019 The mechanism of interaction D207YD303 quantum yield apectrum of 2.9 eV emission; fluorescence and excita- t-lon spectra of the 4 eV (3p, __:P'1S0) emission. The results indicate that excitons generated by absorption of light react with T1 + acti- vator centers as follows: +(I I + YP TI SO) + ex-.;),Tl ex---,,,TlI)->Tl+('S0) + hv (2) where "ex" represents free excitons, and "hv" represents the 2.9 eV em'Lssion. There are 1 figure and 10 references: 7 Soviet-bloc and 3 non-Soviet.-bloc. The references to English-language publications --ead as follows: K. J. Teegarden, Phys. Rev., 105, 1222 (1957); P. Yuster and C. Delbecq, J. Chem. Phys., 21, 892 (1953); P. D. Johnson and F. E. Williams, Phys. Rev., 117, 964 (1960). SUBMITTED: January 19, 1961 Card 2121 AUTHORs Li-idja, GjG. S/613/61/000/017/007/011 D05l/Dll3 TITLE: KI-In luminescence ex6itation in the long wavelength part of fundamental absorption SOURCE: Akademiya nauk Estonskoy SSR. In3titut fiziki i a3tronomii. Trudy, no. 17, 1961. Issledovaniya po lyuminest3entaii, 93-104 TEXT: The absorption spectra, stationary luminescence excitation spectra and F-flash excitation spectra of thin melted KI-In films (0.002d,. mol) were investigated at 3000 and 1000 K. Ho "D-13and" (analogue of the KI-Tl i5 eV band) was found in the absorption spectrum at low temperature. The n i3tationary luminescence yield is quite low in the maximum of the ex- citon band, but at the long wavelength slump attains 70d/6 (3000 K) or 85% 0 ~(100 K) of the yield upon activator excitation. After plastic flow, it was observed that the yield decreases somewhat when Eexc > 4.3 eV. The F-stimulated flash of In+ emission was also studied. The shape of the ex- citation spectrum depends upon excitation density. The spectrum for a low I Card 1/2 3/613/61/000/017/007/011 iKI-In luminescence exaitation D05l/Dll3 I ;:density is given. The,difference between exciton and activator excitation !is well characterized by the spectrum of the relative yield of fla3h (the iratio of the intensity of flash to that of flnorescence upon equal ex- 0 ,citation). At 100 K, it reveals a long region in the tail of the exciton .3-5.7 eV), where Nat is constant and considerably lower than ~band (5 0 ;in the maximum of the exci7on and. This field d6es not appear at 300 K. Bred light irradiation simultaneous with excitation increases the saturated .luminescence intensity in the case of exciton excitation (amplification) ani decreases it in the case of band-to-band excitation (quenching). Ch.B. :Lushchik, F.Savikhin, and R.Kink are thanked for help rendered. There are ,5 figures. The most important English-language reference is: G.Chiarotti, 'Phys.Rev., 107, 381, 1957. SUBMITTED: April 249 1961 j !Card 2/2 89237 S/048/611/025/001/003,/031 ,9, clro (also //3 7) / 39 g) B029/BO67 AUTHORS: Luchik, Ch.. B., Liyd'ya, and Yaek, I. B. TITLE: Mechanism of the processes of energy accumulation by crystal phonphors PERIODICAL: Izvostiya Akademii nauk SSSR, Seriya fizicheskaya, v. 25, no. 1, 1961, 23-27 TEXT: The preseni paper deals with the following mechanisms of energy accumulation by crystal phosphors: production mechanism of F-centers in crystals, and mechanisms of thermal and optical "de-excitation" of ion crystals. Three s-;ages are distinguished in energy accumulation by crystals: 1) production of a long-lived excited state; 2) long-lasting conservation of the excited statel 3) processes of"de-excitation" of the crystal. D. I. Blokhintsev (Ref. 1) showed that the electrons and holes occurring after excitation are localized at lattice defects which are far from one another. For this reason, their direct recombination is impossible, and the electrons or holes must be set free from the trapping centers for 11de-encitation" of the -crystal., Intense ion diffusion prevents Card 1/6 89237 Mechanism of the processes of energy S/048/6!/025/001/003/031 B029/BO67 the crystal from remaining in the excited state for a long time. Even in the production of the simplest F-centers it is necessary to take account of both the active role of electron - hole processes and exciton, sensitizing, ion processes, etc,, The number, nF1 of F-centers can be concluded either from the absorption IP_ n., from the intensity of luminescence photo- stimulated in the F-region, or from the electron emission photo-stimulated from the F-centers. The accuracy of the two last-mentioned methods exceeds the first by several orders of magnitude.. Fig. I shows the absorption spectra (1) and the spectra of the production of F-centers (2) for the phosphors KC1 - Ca, Tl; KBr - Ga; KBr - In; and KBr - Tl. According to the data obtained, the 1P, silates of monovalent impurity ions can be I "de-localized" with a certain probability, which results in the formation of F- and V-centera in the basic material of the crystal. Fig. 2 shows the spectrum of the production of F-centers in KI - Tl as measured by the luminescence method. F-centers are formed not only in the ac region but also in the ex (-220 mp) and ep regions (-190 mp) with even stronger efficiency. The production mechanisms of F-centers in the ex- and Card 216 bye.3 I Mechanism of the processes of energy ..... B/048/61/025/001/003/0:/41 B029/Bo67 ep-regions differ from each other. The dislocation mechanism of the production of F-centers needs additional investigations. The authors then discuss the mechanisms of thermal and optical de-excitation of ion crystals. The third stage of the phenomenon studied here has been investigated in previous papers. ~?he thermal destruction of F-centers in alkali-halide crystals does not lead to their direct thermal ionization. For the NaCl, KC1, and KBr crys,;als, the thermal destruction of F-centers in the range 100-3000K is connocted with hole processesi in the range 400-5000K, however, it is re:.ated to electron processes. The ultraviolet radiation at the same frequencles (in the ex and ep regions) is capable of producing and destroying F-centers. Finally, the authors demonstrate that alkali- halide salts are typical crystal phosphors. During an investigation of the luminescence of alkali-halide salts with excitation in the regJon of self- absorption of the crystal it has been found that many phenomena observed in these crystals are the same as in ZnS phosphors. This investigation was carried out at Tartu. Further details on this subject will be published later. This is the reproduction of a lecture read at the Ninth Conference 3n Luminescence (Crystal Phosphors), Kiyev, June 20-25, 1960. There are 2 figures and 38 references: 32 Soviet-bloc and Card 316 89237 Mechanism of the processes of energy S/048 61/025/C01/00-1/03411 B029YB067 non-Sovi et -bloc. ASSOCIATION: Institut fiziki i astronomii Akademii nauk ESSR (Institute of Fhysics and Astronomy, Academy of Sciences of the EBtcnakaya SSR) Legend to Fig. 1; spectra of absor tion (1), of F-center production (2), of negative, excited absorption (35,1and of the production of activator centers (4). Legend to Fig. 2: 1) absorption spectrum, 2) spectrum of the excitation of steady luminescence, 3) of recombination phosphorescence, 4) of optical flash-up, 5) and 6) emission spectra in the case of steady luminescence and optical flash-up, 7) spectra of the stimulation of optical flash-up Card 4/6 S/058/62/COO/008/04?,/134 A0611/AlOl AUMORZ: Lushchik, Ch. B., Liydlya, G. G., Soovik, T. A.; Yack, I. V. TITLE: The mechan 'ism of the luminescence of alkali halide crystals under excitation by ultraviolet and hard radi,ations PERIODICAL: Referativnyy zhurnal, Fizika, no. 8, 1962, 42, abstract 8V294 ("Tr. In-ta fiz. i astron. All EstSSR11, 1961, no. 15, 103 - 126; summary in English) TEXT: The physical processes taking place in ionic crystals under the action of UV and hard radiations are examined. Attention is chiefly-devoted to the interaction of different elementary excitations of the'basic substance with luminescence centers. An attempt is made to appraise the relative role of ex- citon and electron-hole processes in.gamma and R luminescence. There are 78 references. [Abstracter's note: Complete translation] Card 1/1 h4376 s/613/62/000/018/006/013 E039/E120 AUTHORSs Kink, R.A., and Liyd'ya, G.G, TITLE: Non-linear effects in KI-T1 and Nal-TI luminescence SOURCE: Akademiya nauk Estonskoy SSR. In3titut fiziki i astrcnomii. Trudy no.18. 1962.' Issledovaniya po lyuminestsentsii. 72-92. TEXT: The photoluminescence of KI '-TI and Na-T1 phosphors in the form of very thin layers (- 1 ji) is investigated when excited with ultraviolet light from three spectral regionsi in the absorption bands of activator centres (ac - excitation); in,,the longwave band'~of the fundamental absorption, where anion excitons are created (ex-excitation); and.when excited with the shorter wavelength ultraviolet corresponding to the band to band transitions (ep-excitation). The'dependence of the luminezeence intensity of ordinary thallious centres on the duration and intensity of excItation is measured at room temperature. The steady state emiasion is made up of two components: a fast component (T < 1o-2 sec), and a slow or inertial component (v - minute). With ac-excitation the fast component (fluorescence) Card 1/2 Non-linear effects in KI-Tl and S/613/62/000/018/006/013 E039/!~120 accounts for more than 95*ib of the steady state emission. With ep-excitation the slow component may be up to goo," of the saturated intensity. In the case of KI and Tl with ex-excitation the fast component is the principal one, while for NaI-Tl at higher ex-excitation intensities the proportion due to the slow component increases considerably. Steady state luminescence increases with intensity of excitation for ep-excitation of KI-Tl and NaI-Tl and ex-excitation of NaI-Tl. In the case of ex-excitation of KI-Tl the yield is independent of the excitation density. The mechanism of these processes is discussed. There are 10 figures. SUBMITTED: December 27, 1961 Card 2/2 ACCESSION NR: AR4043M S/0058/64/000/006/D(Y74/DO74 SOURCE: Ref. zh. Fizika, Abe. 6D557 AUTHOR: Lushchik, Cho B.; Liyd'ya, 0, Go; Sooviki To As TITM The mechamLsm of luminescince of alkali-halide drystals an excitation by UV and hard radiation CITED SOURCE., Sb. Staintillyatory* i staintillyats. materialy6. Khar1kov, Kharlkovsk. un-t, 1963, 110-113 TOPIC TAGS: luminescence, luminescence mechanism, alkali halide, alkali halide crystal, ultraviolitt radiation, x ray radiation, gamma radiation, hard radiation TRANSIATION: UsiA; KI-T1 as an example, discusses the mechanism of luminescence of alkali-halide drystaln during excitation by,UV-,~, and x-ray radiation. From a comparison of the kinetics of the build-up of luminescence,the effect on it of preliminary irradLition in the F-band, and thermal quenching of luminescence dur- ing various forms of excitation, the conclusion is drawn that in the luminescence of XI-Tl during.er;itation by hard*radiation an eaaeutial role is played by the Ciwd 1/2 T ACCESSION UR: AR40113997 exciton mechanism of energy transfer from the lattice of the basic substance to the luminescence conteres Bibliography: 25 references# SUB CODE: IC, OP ENCL: 00 Card .2/2 ACCESSION NR: AT4020799 S/2613/63/000/023/0109/0136 AUTHOR: Kink, R. A.; Uyd'ya, G. G. TITLE; Some peculiarities of photolumineseence in Nal-TI and NaI-In SOURCE: AN EstSSR. Institut fiziki I astronomit. Trudy*, no. 23, 1963. Issledovaniya po, lyuminestsentall (Research In luminescence), 109-136 TOM TAGS: luminescence, pliotolumineseenco, exciton, phosphor, crystalline phosphor, alkali halide luminescence, NaI-Tl luminescence, Nal -In luminescence, photoluminesconco excitation wavelength ABSTRACT: The authors have studied luminescence In Nal-TI and Nal-In phosphors, excited with ultraviolet radiation which was absorbed in the host crystal,* as a function of the excitation wavelength, intensity and time, as well as during simultaneous irradiation with red light. Under stationary conditions, the saturated quantum yield of luminescence due Lo the activator, both In the exciton band and when excited with shorter wavelengths corresponding to band-to-band transitions, approaches the qiantum yield In the activator a;bsorption band when 1S 0 - 3P1 transitions are excited. In this respect, Nal-phosphors are similar to the other activated iodides (KI-TI, KI-In, RbI-Tl, Cal-TI heavily doped). The kinetics of Nal-TI luminescence differ from that of KI-T1 and RbI-TI. Whea excited, Card 1/3 ACCESSION NR.- AT4020799 luminescence rises in the exciton band slowly, and only 15% of the saturated Intensity I., built up momentarily (in less than 0. 01 seconds). I'lie intensity of the Instantaneous component Is a linear function of the Intensity of the excitation; the intensity of the component is a superlinear component of t'he same parameter. If an NaI-Tl crystal -1,i excited in the longwave-band region of [ho ~xciton band (whero the exciting light penctTates to a depth greater than 1 micron), the kircdc.-3 of Nal-TI approach those of KI-T1. peculiarity of Nal-TI and Nal-In phosphors is also attenuated by a drop in tomperaftirc. With excitation at 100K, the luminescence build-up remains slow In the band-to-bam, region, whereas with exciton-excitation the Inertial component Is reduced to 40% or disappears altogether (NaI-1n). Apparently, two effects are present here: 1) Near -.;ia surface, there are defects In which the excitons are dissociated into electrons and holes that later recombine and give rise to a slow luminescence build-up. 2) A small energy interval between the exciton band and the conduction band may cause autolonization in tile excitons, with the same result. At 100K, band-to-band excitation and exciton-excitation are individualized, because the exciton band and continuous absorption overlap to a smaller extent. , The shape of the excitation spectrum of phosphorescence proves that the exciting light quanta, the energy of which corresponds to the "shoulder" in the abSorption spectrum of Nal (5. 7-5. 8. electron volts), create electrons and holes in the crystal. In the peak region of the fundamental absorption area (5. 45 - 5. 66 electron volts), the energy of the absorbed quanta is conveyed to the luminescence center chiefly by "exciton Car 2/3 ACCESSION NR-. AT4020709 .,tit "Th mp authors express their gratitude to Ch. B. lAshchik for proposing the i sUbrqct ~nd discussing the work, to T. Soovik for his useful remarks, and to 0. M. Ko~8valov and A. N. Panova for supplying the monocrystals. 11 Orig. a~t. hast 6 figures and I table. ~q~OQTJON: Institut fLzfld i astronomli AN EBtSSR (Institute of Physics and Astronomyj' 5 BSA) SUBMITTED: 12Jan63 DATE ACQ: 07APr64 ENCL: 00 SUB CODE: PH NO REF SOV.- 028 OTHER: 014 3/3 Card L 20?tk~-62 EEO (b) -Z/EPF(c)/&PF (n) -2/V-dT (1)/EWT (r)/T P-r-4/Pu-4 IJP(c)/ C-,.IID(C)ILFWIIA,,SD(a)"51ASD(M)-31A.FETRIAYTC (a)/E&D (gs) GO- ACCESSION MR: AT5000396 8/3119/W000/001/0015/0025 Llyd'Xa, G.G. Mango, M.A. TITLE: Study of the processes of generition of radiation-induced defecAn ionic cryiAals '!k)URCF,-. AN JatSSR. Institut fiziki. RadiatBionnaya fizika, no. 1, 19G4. lonny*yp kt!istally* (Toaie crystals), 16-25 TOAC T alkallhalide crystal, crystal lattice. lattice defeat, radiation defect, color centeK thafl[um activator, ultraviolet Irradiation XaSTRACT: The object of this work ww to study the creation of color centers in NXI single crystals by x-raysand by irradlation in the vertical ch=,el of the IRT reactor of the In stitut fiziki AIN Lat. SSR (Physics Institute of the Academy of Sciences of the Latvidh SM). T study is Ah, direct continuation of a series of InveRtigations conducted at the Institut fi,uki i Astroftemll AN Est. &M (1wtitute of Physics and Astronomy of the Academy of Ss:ietices of the Estonian SSR) and aimed at elucidating the mechanisms governing the colorm-111 ti Dn of ionic crystals by ultraviolet light. Spectra of the creation of color centers in thin fj ims of HI-Tl by monochromatic ultraviolet radiation were recorded. Electron, exciton. ra4,ioaization mechanisms of the creation. of color centers and radiation-induced defects In C4rd I-,-, L 20763-651- ACCESSION NR: ATS=39fi_-~~, iome crystals are discussed on the basis of the data obtained and llte~kft-e~ - "In con- CILWiOn. theauthora express their appreciatiom-tc~ffy6,1'hxazte-for his collaboration in the work and for reviewing the results. 4&,weM its-to V.P. Denk-q, E.R. n,mas. and R.A. Kink for tAeir participation in the experiments. 11 Grig. art. has: 5 f%wes. ASSOCIATION: Institut flziki I astronomit AN Est. SM (Thititute of PhyAles and Aatrono=. AN Est;.E9JR; Institut flzlki AN Lat. SSIt (~hygfds Institute, AN Lat. SM) SUMUTTED: ...18Mar64 ENCL: 00 SUB CODE: OP,S5 WO REF BOV:, 025 OTHER: 034 Cord Owe. L 6:-;Q 1,i - 65 ~~VIVT/ZMf b.)-2C AZT= =01- NR: AT5013536 AUTHORS: Iltmas, E. R.1; Kinic. Liyd I ya Malyahev~a G. G.; TITLE: Absorntion sDectra of lead halide salts in the region from 2 to 9. 5 ev ,SOURCE: AN EstSSR. Inatitut fiziki I astronomii. Trudy, no. 26, 1964, .Issledovanlya po Iyuminestsentsii (Research on luminescence), 112-120 ,TOPIC TAGS: absorption spectrum, lead compound, halide salt, thin film, exciton, absorption band ABSTRACT: The authors have mcasured the absorption spectrum of thin layers of PbC1 2' PbBr2 , and Pbl,, on LIF plateg. U~ 111 ke earlier Inve5tigat tons, the Gpectrum measurem--nt Is exterided In this ~,;Drk to 9.5 eV energy. The purposf-,- of tfv~ lnvesi-lgaLlon wao to deter- mdne the energy spectrum of various elementary excit.,at.1nng of tho cr.-istal. and to check whether the energy -)f an1r)r,1.c exclt.-)ns Is larger iCard L 60914-65 MAXESSION NR: AT5013536 than the energy of the cationic excitons in ionic crystals containing PI) The results show that the loviest energy absorption bands In PIX12 (4.55 eV) and in PbBr (3 7 eV) are correlated with the absorp- t-on bands and the phosphor3 Kcl,-Pb and KBr-Pb, corresponding to the 1 , 1 4+ .)0 P1transitions In the Pb Iono. Tn view of this correlation, the bands in PbCl 2 and PbBr2 are attributed to cationic excitons. This ni,lkes PbCl2and P'DBr2suitable objects for the Investigation of the m.gration of cationic excitons in phosphors. "Die authors thank Ch.-B. Lushchlk for a discussion of the wqrlr and T, and T, -,Sa-vIkhJ-na,--- 1-it-lp With 11-he dUi- I I a L-1 It flgurt:s. A,'MCIATION: Institut fiziki I astronorrill AN F..-,tSSR (~-m3titutis of Physics and AstronomyjAN EstSSR) S I 11-371 - 1 i 7 T E, D18Jun63 ENCL: 00 STTB CODE: OP M? REF SOV: Oil OTHER: 013 :0rd 2/2 1 6-0. 3 -, 5 EKT(1) ijP(c) T, =I 7: DIR: AT5013545 UR/2615/64/000/026/0213/021r- AUTHORS: 111mas, E. R.; Liyd'yap 0. 9.1 Lushchik, Ch. B. ,T':TLE: Photon multipll-gakinn-ao an elementary act of the scintilla- t:-on process SOURCE: AN HstSSR. Tnstltut. fl.ztkt I astronomil. Trudy. no. 26, 3,64, InGledovanlya po lyuminestaentoll. (kf-.~seavch or,, luiiiineo-ori-e), ,2'3 - 215 TOPIC TAGS: photon multiplication, scintillation counting, alkali balide crystal, photon yield, quantum yield 'A'33TRACT: For the purpose of an e"eriment-il of the c-:Lempntary scIntillation act, whe-rein orecl,iarti,i7i of 1~1~ravlolot :r; idlation Is transform-ed into two jaantla of viF,!Lle 11-;T'h" h = 2), ,the authors succeeded to obtain photoluminescence aith Tj > 1 and a I - 2i!rios of single crystals of KC1, Ur, and IrI activated v,,Ith thallium L.:i,d indium. The excitation sourco v; as a pnv;;~rflil c!131char,~e in hydro- Card 1/2 V~ 51W M - ~ TERM L 60903-65--,. ACCESSION NR; AT5013545 gen, neon, or helium in a flow-through quartz lamp, making It possiblei tc experiment in the spectral range from 5 to 21 (-,~V. The luminescence, e>.cltation spectra were measured at 293K at 90c' to the direction of e>citatlon by means of a 3ensltlve photoolectric, photornf,tc~r, rela-lve t( so(lium nalycilate Standard. The quantum yl.i:~Id began to tncru~aoe- w~th increasing frequency, starting with 11, 13.5, and P-).7 eV for K';.-In, KBr-In. and KCl-T1 respectively, and exceeding unity for 1(--In and KBr-In. The photon multiplicatlon began at a photon energy approximately double the width of the forbidden band, apparently as a r; sult- of generation of tao electron-hole pair., by a single quantum. A d-tdiled report will be published In the Journal 'Optlka I opek-.1,0skoplya. Orig. art. has: 1 figure A,)SOCTATTON: Institut fizilci i astronomil AN EstSSR (Instituto~~ Fjiysics and A,3tronomy,AN EstSSR) S' JB'151 I TTED: 22may64 E1,7CL: 00 SUB CODE: OP N.-I REF SOV: oo4 OTHER: 002 ord 2/2- t Li~0-65 (t)/i,74F (b) ACCESSION UR: AT5013546 AUTHORS: Kink, R. A.; Liyd'ya, G. TITLE: Concentration dependence of luminescence yields of KI-T1 Tjp(v) J"D UR/2615/64/000/026/0216/0? G.; Maaroos, A. A.; Souvik:;~#~.A.( the photoluminegq_c~ and radio- ~f li'SOURCE: All EatM. Institut fiziki I astronomii. Trudy, no 26 964.1 Jsaledovaniya po lyumine-stsentaii (Research on luminescence~' H6119 MPIC TAGS: photoluminescence, .-adioluminescence, potassium iodide ,phosphor, concentration dependence ABSTRACT: The authors measured the dependence of the luminescence jyield on the concentration of tballium In KI-Tl In which the excitons or electron-hole pairs were produced optically or by a-particle bom- bardment. The crystals were grown by the Kiropoulos method. The ltuninescence quantum yield was measured with a vacuum monochromator 'by a method described elsewhere (Opt. I spektr. v. 18, 1965). Plots are presented of the concentration dependences of the energy yield of Card -113 T~ ~Ar` i. 6o9ca-6.5 'A CCESSION NRj AT5013546 'Che stationary luminescence when excited in the maximum of the exciton absorption band (5.65 eV) and when excited in the region where electmi -tiole pairs are produced (8.6 ev). In the forme-r case the plot Is nearly a straight line with leas than unity slope showing saturation when the concentration of the activator exceeds 16-1 molar per cent. She difference in the concentration dependence of the exciton and the electron-hole luminescence can be attributed to the fact that the ratio of the effective cross sections for capture by the luminescence center and by the competing defects is much smaller for excitons than for electrons and holes. In the case of a-particles excitation, the tependence of the scintillation yield on the concentration does not coincide with the dependence of the photo luminesce nce for either Inter band excitation or excitation In the exciton band, but is closer to the latter. Although this can be,interpreted as being due to the ap- preelable role of exciton processes in a scintillations produced in EI-TI, It is emphasized that the conditions for optical and a excita- tions differ greatly. Orig. art. hasi 1 figurp- Card 2/3 L 60903-65 ACCESSION M. AT5013546 ASSOOIATIONt Institut fiziki i astronomii AN EstSSR (Institute of Physics and Astronomy)AN HatsSR) t~WEMITTEIM 1OJun64 ENCL: 00 SUB CODE: OP IM Ru sov: oo4 OTHER: 001 ACCESSION NR: AP4043338 S/0181/64/006/008/2256/2262 AUTHORS: Lushchik,.Ch. B.; Liyd'ya, G. G.; Elango, M. A. TITLE: Electron-hole mechanism of production of color centers in ionic crystals SOURCE: Fizika tverdogo tela, v. 6, no. 8, 1964, 2256-2262 TOPIC TM11,S: color center, ionic crystal, electron bombardment, x ray irradiation, color center, ultraviolet i.rradiation, alkali halide, crystal lattice defect ABSTRACT: The present communication is a direct continuation of a cycle of investigations carried out by their laboratory to clarify the mechanism whereby ionic crystals become colored by ultraviolet radiation, x-rays, and radiation from reactors. Natural crystals of NaCl and crystals of Na*Cl.Tl an~ KCI.Ag grown from melts of especially pure salts by the Kiropoulos method were irradiated in Card 1/3 --777-77777 ACCESSION NR: AP4043338 the vertical channel of the IRT-2000 reactor, and also with x-rays (60keV), slow electrons (150 eV), and ultraviolet radiation (5--14 eV). The authors were especially interested in elementary processes which occur during a complicated phenomenon such as radiation color- ing of ionic crystals, and paid consequently special attention to a parallel investigation of the production of F centers by these type of radiations. It is shown that irradiation of the crystals leads not only to a Filling of th(- anion vacancies by electrons, but also to goneral-.;.on of a large number of now point di~fects and their clustering. Only the electron-hole mechanism of F-c,_-W_-er production is considered in detail, the others having beer. treated by the authors in numerous other papers. It is pointed o%~t, how- ever, that this is not the only possible mechanism. "We. ari_- deeply grateful to K. K. Shvarts for collaboration and to G. Va e~ E. Il'mas, T. Eksina, and I. Yaek for participating in the cxperiments and a discussion of the results." Orig. art. has% 6 figuras. Card 2/3 ACCESSION NR; AP4043338 ASSOCIATION: Institut fiziki i astronomii AN ESSR, Tartu (Institute of Physics of Astronomy, AN ESSR) SUBMITTED: 28Dec63 ENCL: 00 SUB CODE: OP, SS NR REF SOV: 031 OTHERs 008 I L-2836-66' EWTW/E T(M)/T1&P(t)LE_WPw -IJF(O)- _~W ACCESSION MRs AT~DV77 2 UR/2613/64/000/028/0003/0 Go Go; Merilo AUMORS V Lqmk!:~iAj NO Ye.j Lushchik Ch.:Boj L!Zd'7 Of L A, TITLEt Localized electronic excitations of Ionic crystalop activated by mercury- like ions ;If, It Lj/ C' 4 SOURCE: AN EstSSR. Inatitut fiziki i aetronomii. Trudy# no. 28, 1964- IBBledovan po lyuminestsenteii (Research on luminescence), 3-19 TOPIC TAGS: luminescence property, luminescence researchg luminescence, lumi-._- nescence spectrum, luminescence yield, luminescent crystal, phosphor, gallium, indiump tin, telluTium, lead ABSTRACTv In order to deterin4ne the nature of the excitation and energyjiigrat~ in activated alkali halid a stale, the excitation spectra of 13 alkalighalide "7Snj T11 and Pb in the spectral regio-ni-T-TO ev were crystals activated by Ga!~ __Q P investigated. The study i an extension of the previously reported work in the spectral region 2-6 ev by No To.Lushchikp (Materialy VII Soveshchaniya po lyuminesteentaii (KristallofosfOX7)i Tartu# 1959t str. 27)- Four series of experi- ments were performed I KF-In, KCI-In, KBr-In, KJ-1n, j KIM. K&M, -KJ-T1.j A ACCESSION NRj AT5021772 ~111_ W-Go, KCI-In', KCI*8' W-TI, KCI-Pb, AV. KBr-Ga. KBr-ln, I(Br-Sn, KBr-Th In series I and Ilp..the activator was fixed (In or Tl)1 and -the anion was varied. In series III and IV, :the activator was varied, but the anion remained fixed (KC1 or KBr)# The experimental procedure followed was that of Es R. Illmas, G. G. Liyd'ya, and Ch. B. Lushchik, (Opt. i spektr., 1964)- Excitation spectra for the systems investigated are presented graphically, and the position of D absorption bands are tabulated. It was found that the excitation bands at the long wavelength tails of exoiton absorption bands were almost independent of the activator, but depended substantially on the nature of the host anion. A model for near activator centers i proposed. It is concluded that the phosphors investigated exhibit activat a iw:ll as near activator electronic excitations. The authors thank E. R. Illmas-for ithe development of the ultraviolet vaocuum experimental apparatus and R. A. Kin for, ,his help, as well as A. A. Maaroos for the T1 determination in the phosphorg- ig.! cart. has: 2 tables and 6 graphs. ASSOCIATIONS Institut fisiki i astrononii, AN EatSM (Institute for ' A tSSR tronoxyt AN Es ,SUBMITTEDs ENCM -00 SO CODE 63s Ok 'NO REF SM 038 OTHERS 011 2. L 2632-&-- WTM/ Laff W1 jD ~'ACCESSION HR: AT5021777 UR/2613/64/000/028/0080/009;! -COO' AUTHORSt Gorbachev, B. N.; Kink, R. A.; ~~jyd,~y -G.- TITIX- On the dependence of the effectiveness of the exciton and electron-hole energy transfer mechanisms in alkali iodideson the intensity of excitation IT- _- SOURCE: AN EstSSR. Institut fiziki i astronvi. Trudy, no. 28, 1964. Issledovaniya, po.lyuminesteentsii (Research on luminescence)* 80-92 TOPIC TAGSt luminescence propertyp luminescence research, lumineeoencep luminescence spectrum, luminescence yield, luminescent crystal, ultraviolet radiation, phosphor __1 ABSTRACTs The dependence of the luminescence field on the intensity of host lattice y excitation with monochromatic ultraviolet radiation in certain alkali iodides acti-i vated with thallium (Kai, KI, RbI, and CsI) was determined. The investigation was a i continuation of the work of E. R. Illmas, G. G. Liyd'ya, and Ch. B. Luehchik (opt. i---- spektr. (v pechati)). Monoorystals of the phosphors were grown after the method o Kiropulool all measurements were carried out in vaccuum. Quantum yields 'of fl luminescence an a function of excitation energy were determined, and the results are, shown graphically in Fig. I on the Enclosure. It was found that the intensity of the slow luminescence component (attributed to the eleotron-hole energy transfer L 2832-66 IACCESSION'NR: AT5021777 ---- --- imechanism) increased with increasing intensity of exoitationt and that intensity of I I ithe fast component is independent of the intensity of excitation. The x-ray !luminescence of CsI - TI was also studied, and it was found that the efficiency of iradioluminese'ence is independent of the intensity of the excitation radiation. The lauthors thank Ch. B. Lushchik, or suggesting the investigation and for hie help in evaluating the experimental forrdlts. Orig. art. has:.2 tables and 6 graphs. ASSOCIATIOR: Inatitut fisiki i astronomii, AN EstSSR (Institute for Physics and jAstronoqr, AN EstSSR) iSUBMITTEDt OBJitn64 ENCLt 01 SUB CODE t S-S) OP 110 REP SM 017 CIMM 1 006 ard L 2832-M ENCLOSURE: -01! vie 40 'M 7- Fig. 1. "Dependence of luminescence quantum yield on the intensity of excitation for excitation with energy quanta 10-15 ev M* and 16.7 ev (20), filter BZS-18; IP3 - quantum yield of slow componentj 2 quantum yield of fast component -~card 3/3 b /F,-.rF( I/T ACCESSION R'R: AP5006433 S/0051/65/018/0013/0453/0460 ~Ya G- G-'. 1?~Shehikj Ch. B. AUTHOR: Illmae, E. R.; Uyd TIM,: Photon multiplication in crvatals. I. Luminescence excitation spectra of ionic crystals in the range framW__io 21 eV i SOURCE: Optika i apektroskopiya, v. 16, no. 3, 1965, 453-46o TOPIC TAGS: ionic crystal, photon multiplication, excitation spectrum, lumines- cence excitation$ lumineaccnee yield, quantum yield ABSTWXT; This is the, first of a series of papers and is devoted to a convincing experimental proof of the existence of photon multiplication in crystals in the To this end, the authors measured the luminescence excitation spec- optical band* tra of 11 single-crystal phosphors K1-Tl, KI-In, Rbl-Tl, Rbl-In, CGI-;Tl,, CsI-In, 4 to 21 ev. A vmcu-: i XBr-T1, Mr-Ing KCI-TI, MI-3:n, and NaCl-Tl in- the range from um SP-68 monochromtor modified for luminescence meaaurement was used. The ultra- violet source vas a quart2-capillary high-power lo=p of conntruction described by f P. I. Vilegay (FM no* 4, 89, 1958). The lumineacenae of the phosphors was re- gistered with a photomultiplIer tbrou& filters that neparated the Individual Card WPM :-L 43879-615 -Acassiori imi Ap5oo6433 I.- bands -The details of the test procedure are described. The results show that at ener-gies,above 12--eV.tht' quantum yield of the activator luminescence increases., exceeding in many cases. thf!: near-unity,quantum yield of luminescence produced by direct excitation of the liminesce-tice centers. This demonstrates beyond arty doubt that one exciting quantum can produce in ionic crystala two liuninescence quanta, proving, the existence of plioton multiplication in the optical spectritn. 71he re- sults show also that the steplAse charactor of variation of the quantum yield. from activated ionic cryste-2-s aii a functior. of the frequency of the applied 14 1 r L~ t , dicated in earlier papern by one of the authors (Cb. B. Lushchik, Tr- 17-A AN FZSR, no 14, 3, 1961 an4 others), Is obnerved not only in the region of activator but also in the region of the fundamental absorption, at least up tc 21 eV energy. Orig. art. has: 5 figures and I table. ASSOCIATION: None sn~arr : o8Apz,64 ENCL: 00 SO CODE: op,GS NR RU SM t G14 OTHER: 019 Card Np.: A250IM6 UPI/0G51jG5/M8/O(A/063l/C636 iTrao',i: illro~op E. R.; Li),dty'ar G. G.; U~ShChikL Ch. B. TTI-,,F,: Photon multiplication in qryntals.111. Photon mLltiplicatian mechanims, S%'RCE: Optika i apektroskoplyr-, v. no- k, 1965, 631-636 ,To'~~'T TAGS, a3JAli halide phosphor, quAntum yield,, optical activation, luminer-- T _1C111CfI, Viot/m multiplication, imparlty center, photoGtimtIated 11minescence, exciton, electron hole EmItI.plication ABSTMCT: Fart I of the c--:7ticle, published earlier (Opt. i spektr. v. 18, 453, 1965) demonstrated that the metivator-glaw quantm y'Lel& excecda %nity in somn crystmls excited in the region of the vacmim Ultraviolet. The turpose of PaTt 11 was to ascertain tfte mechar-isa whereby the energy of one exciting quantum is transformed in tae cryutal into the energy of two or more luminescence quanta of eqaal frequency. To this end, the excitation spectra of the Lastantane- t.'raa st-atic-mary glov compoueat and of the photcatimulated I=Jmescenae vere t=es- tigated :in KI-Tlp KI-In, MI-TIp and RbI-In in the region ftvm, 4 to 2L eT- The experimental procedure "a the saw as deacrlbe4 ta Rut 1. The dependence of the Card .57q6-65 L 4 ACCESSM11 NR: AP50LIU6 instan-t-aneous-Mid- Inertial-stationary- glow _ca=one_nts an the--frequency of the ex- Citing light was studledi In analytic of the experimental data show that there exist Pt. least two mechaniarts of photon multiplication: exciton and electron-hole. It Is observed that in the region of photon r-mItiplication the dependence of the yield on the intensity of encitation has eingularities connected with the jump- like increase in the volume density of excita-tion. No mechaaism connected with direct excitation of impurity centers by fast electrcna could be detected in the experiment. Orig. art. hast 3 figures and 2 formulas. 102) A&SOCIATION: None -64 MBMrr= i OBApi ENCL: .00 am COM: OP, so go REF SOV 1 012 Omni 006 Awpmsu, 4ou COrd 2 2 Tf -P ~,.k&~MXADK R E;5C(b)-2/EWT(L)/T UP(c) ------- ACCESS117.1 to: AP5004516 9/0048/65/029/001/0027/00,25 At_MKM~- TI'mas, I Kink R.A.; iyc~:ZiL ~(;.G. Lwshchik,Ch.D. TITLE: Transformations of electron excitations in I I P') rt Conf crence on LuminesceAce lield in L'vov 30 Jan-5 Fr-b 19647 SOURCE: AN SSSR. Izvestiya. Seriya fizicheskaya, v.29, no.1, 19G5, 27-33 TOPIC TAGS: luminescence, 'ionic crystal, exciton, quantum yield, alkali halide ABSTRACT: The reflection 3pectra from the (100) surfaces of eight alkali halides-1 were measured to a quantuv energy of 14 eV with a vacuum monochromator and the re sults are presented graphJcally. These spectra show numerous peaks above a rela- 'tively smooth background; the peaks In the long wavelength portion of the spectra re charsoteiristi-c-primar,ily of-the anion, -and-those In the short wavelength reglol~ *f the catIon. The energioin of the short wavelength peaks are close to the minimuml, .~M tation anergles- of th a f ree cations. The excitation spectra of the stationary activated with In or T1 were the - present- a - -(Crpti-ks--i- measured by-Methode described.-elsewhere by three of ent- a I cies-were-obtained by correct ng spektroakoviva 17, Kb.6,3964)~ The quantum, eff cien iw- - cardi/2 kCCE:SS N-R: AP5004515 r a, r~ijcr.-jplete absorption and uele~;tlve reflection, and the results for several al- ka I I k halides am presented graphically. Three regions car, be distinguished in the -t4. KP r s5 pect ra . In each of wh ich the quarit um y i,~,l d 1,4 -_j pproxi r.-,l t e 1 '; ctyrs tant: f a, t 1 vator abs or-pt. '. )n , t h, 1 nL---- 4av ~~r.g ~ h Px - Iir)r. ba nd ~: -id ;- ?g ion ext end Irg D ab,,ut r, -I quant%ir~ yield %vas bs,~r-/r~d il -x, i a~ i ~r~ -r;~2rjZ: -2, 1: Thl.s is ascribed to a pdi"un ed above. These experimental data are discussed In som.'a detall in connection witn other r-Aterial in the literature. The striking fact tivat emerge3 Is t"'at the final ve-lult5 am the same whe"her the ionic crystal is excited by high energy photons or f.nis. rt is i:oncluded thal. the h1gch energy exrltati,in Is r-apdly 3 1 m fig ir"., -d ple exitons Lne. and 1 taKe. Al S 32 CC 1A T I ON -Institut fiziki antrononii Akadmiif nauk RgtSSR (Institute of_Phy--~-~!_ v of t he k c ad Pipy n f S-3 I rin e~ ~4_ -T~ V'- M L 5454-66 EWT(M)/9WPM/EWP(b) IJP(c) JD1JQ XR: "5025095 le SOURCE CUDS: UR/0368/65/003/003/0276/0270 11y'4z; 99 AUTHORS: Kink, R. A.; Liydfya, G. G. ORG: none TITL4; Photoluminescence of alkali iodides activated by thallium and indium ZTresented at the 12th Conference on Luminescence in L'vov January 196h/ SOURCE: Zhurnal prikladnoy spektroskopii, v. 3, no. 3, 1965, 276-278 TOPIC TAGS: photoluminescence, luminescence research, luminescence spectrum, luminescence crystal, potassium iodide, rubidium iodide ABSTRACT: The photoluminescence of KI and Rbl activated by TX and In respectively was investigated. The luminGseence was produced by excitation in the exciton absorption region (,%,, 5-5 ev) and the vacuum ultraviolet region. The experimental results are presented graphically (see Fig. 1). It is concluded that electron hole luminescence bears a pure recombination character, usually associated with a subsequent localization at the luminescence centers. By optical studies only it is impossible to determine whether hole localization occurs first, followed by Card 1/2 UDCs 535-37 L 5454-66 ACC NR; AF~02%95 0,5 Fig. 1. Dependence of stationary luminescence yield,IL of KI - Tj phosphor for exciton excitation (1, Lex - 5.6 ev) and electron- hole excitation (2, Eex - 10, 15 ev) on the intensity of excita- tion. lex (quanta,cm-2.sec-l) 0/~ 0-2 mole % in crystal.,~ CTft 5 x 1 fi ers SZhS-18 FS, - 1 and neutral NS-8 and NS-9, T - 295K, in* JL79 Iota loll le yield at Bex - 4.35 ev is taken X as unity. electron recombination) or vice versa. The exciton luminescence is best described as exciton annihilation of excitons migrating to the luminescence cente d 4_yj~ pn subsequent energy trq~ker to the lattgF,, as reported by Ch. B. Lush9hig, N. Ye. 44Lushchi , G. G. Livdly&,"and L. A. Ta~y 61 63, 1 k -(Trudy A_M 957). The 5~iauthors thank Ch. B. Lushchik for help received in evaluati.4-"tlie experimental results. Orig. art.1haut 3 graphs. SUB CODEs OPISS SUBM DATE: 05Jan65/ ORIG REFs .010/ OTH Ws 002 Card 2/2 ~Q~ EEC( b) -2AT-7(n)-2/7,?A(s t %-T Jjp(c) Go/jp/JG A(=JST"1 KR- APS009507 9/0048/65/029/003/0373/0379 q.G.; 1~~k-;,hikpH-Ye-; hchik.Ch.B. AMOR: ZazubovichE~-G-; !4,Vd~~ Lus . ............. 'ITTIB-, optical structure of luminescen-co centers In activated Ionic crystals O'c'; fletarlL 12th Confemme on 1--m'Lnescarrae held tv Wvov,.~9 1q- ,,OUf=,: A14 B-96-R. Jzvemtiym. Serip fixichtyr-kays, v, 29, no. 3, 1965, 373-37D r'OPIC TAGS: Ltmineaceuce, lminefAretme polArization, 1=ifmesceLtt cryqtal. ltmlneovcea-.~) canter, alkali hAlJdo, single crystall-t ABSTW.M. IrM3 pe~peas- is co=t)m(td zith ths Itminoseencte of alkali halid'a ,ipr.Staln actIvated by vmftrcuxy-l!irv i-lims. , r0rcitetion ep--ctra aro for ILh-- arectra) ; tZtesc crectra Wo V!~oi-mn emiray rlktg-z frw 3 to 10 -,V. Tkrc-3~1 Vv7JIuntym) C-7ru'JO-tfrm a.va d1oLipguishedc et groulp of 1--jig w%vcjoi;gf-t% baudg (I.b'D A, D, gnl C 1xi"In) ; mm czm-ltatiau bvxd adjacvnt to tue lim-damntal Rbaomtj."Ll OAC"n (t-he -1 tvsrd); mv-1 mn aNtAtation band. trIthin tho gomirlawntal aLtsorpUmu maglcu. Earlier unperkastite-1 tilta, L~oth of the proseat nuthora aril o:2 othors, mr,3 v4fdunaed, Includive polarira- I Card 1/2 ;Vq- L 0905-65 Ac=SION MR: APS009507 0 I ition spectra of the lumlneuewe of KCI activated With Ga, In, TI, Go, Sn, and al. rhese data are discussed at a length, and it to concluded that the A, B, and C hands mV due to setivator moLtation Knd are genetically related to transitions to the apl, 3P2, and IP, stsites of the free actlvmtor Ion, and that the 0 band in due to excitation of ions of the hoat, perturbed by neighborIng activator Lora. Orig. art. has.- 3 figures and I table* ASSOCIATION; None SHM: 00 HUH Cwt.. OP, LIS ISUMITMO: 00 !1M REF BOW: 017 OMR: 007 .7 7177 77 -77 7777777,777 AUTI.iG71: E. li. ; Liy Q. G. ; Da ic ik, Ch. B. ; Sooy" k., T. A. : 1"nstitute of Physics and Astronomy, A;; ZstSSH (Institut fiziki i astrcn=ii A~; TIT""': Photon multiplication in crystals and the phenomenon of radioltmuncscence SOURCE: X1 LatSSR. Institut fiziki. Radiat&ionnaya fizika, no. 4, 1966. Ionnyye ,kristally (Ionic crystala), 71-83 TOPIC TAGS: pnoton, radioluminescence, x ray effect, quantum yield, ionic crystal, ~azzorption band, light exc_~tation FUCT: In connection with their earlier ex-,:,erinents (Opt. i spektr. v. 16, 611, 1965 and elsew'acre) dealling with observation and investigation of photon =ul-,J.pl~- ca:zion by cryGTals in the optical band (rather thaz x-ray or gamma region) , tho 'Lhors d.-scuzz in the present article the connection between this effect and nomena of x-ray luminescence and radioluminescence. Particular attention is paid to the role of different electronic excitations of the crystal lattice and to lumines- cence excited in ionic crystals by hard radiation. Photon multiplica;ticn in t.-.e cal ranGe was investigated with a special set-up including a vacu,= r_cnoc_'-ro=a:;Gz- ar"7 . I a diffraction grating, a high power discharge lamp, a monochromator, a vacuum chambe. Card r the samples, and a comparison standard (Godium salicylate) described in the car, lo er investigation. A number of optical phenomena were investigated in the pnoton Cncr- ZI range from 5 to 21 eV, particularly the spectra of the quantum yield of iphotoluminescence of several dozen activated ion crystals. The results zhow crnvin;.- in~-ly that photon multiplication in the optical region of the spectrum does exis-~ a- rises when a single photon produces two electronic excitations in the cryzt4l '~4e two po3aible mcchaiGma for this phenomenon (exciton and electron-hole) are de- 'b, cri --d -zhere and characteristic featurea are compared with earlier experiments 'ty z,`e z _nutaors and *Gy others. It is shown that these two nechanisms operate also in t~.c caz;t: of rLdioluminescence of ionic crystals. A formula is derived for the enera yield Gf ac-iivaTor luminescence excited in the main abzorption bands of a crystal. Tze poss-4- bili'v of decreasing the time lag of the electron-hole radioluminescence scintillating crystals is discussed. As a rule, in stationai-y radiolu=inescence the electron-hole mechanism predominates, while in scintillations the two mechanisms are in general on par. in I'TaI-TI crystals the electron-hole mechanism apparently predo--4-1 natez. it is shown that, a possible reason for the deviation of the real scintillation. yield from the estimates presented in the article is the inertia of the electron-hole mechanism. Orig. art. has; 4 figures, 4 formulas, and 1 table. SUB CODE: 2G/ SUBM DATE: 00/ ORIG REF: 022/ OTH 1EF: 006 .-Cord-2/ USSR/Statistical Physics Liquids D-8 Abs Jour Referat Zhur - Fizika, No 5, 19571 11517 Author Kirho) I.M., Liyelausis, O.A. I-------------- Tnst Institute of Physics, Academy of Sciences, Latvian SSR. Title Possibility of Employing the Method of Similarity for Determination of Parameters of a Liquid Metal. Orig Pub : Fiz. metallov i metallovedeniye, 1956, 2, No 3: 563-564 Abstract : The authors discuss the possibility of determining the electric conductivity, the density, and viscosity of a liquid metal by similarity methods, using experiments on the twist of a liquid, filling a closed cylindrical ves- sel, in a rotatin.- maUAetic field, and from the damping of the motion of a liquid after the rotating field is turned off. The Navier-Stokes and electrodynamic equa- tions are written in dimensionless forms. As a result Card 1/2 USSR/Statistical Physics - Liquids D-8 Abs Jour Ref Zhur - Fizika, No 5, 1957, 11517 of experiments with mercury, one-to-one relations are es- tabl-ished between the similarity criteria for frequencies of 50, 100, and 200 cycles. Card 2/2 43 'IN z A &iA 116 Era jig it ~ ..I I ntl 1i i ~, I i ,Zt i .H I I 'p Itp wp. I E In MINH I six I Hill v V19v? 00 CC)? SIA911 0 ,te ev~t o*' ~bal " 0~ ot~ So er. C e e -res -f Ob e0 e, se ,,0q e'r 5*4 B;a ot 0 tete %j0 430 e 5SB.I --nC%'. oleO"Dal syol ,-r eses .10'0 r6- ect V't t Ylf- raetar Oet V't t St )~,& TS Coe I's-0, , I)y 't t-'s ol e s, 4A T e fee ax 0,61',e' e %~q f.OTG 101~9, t C yied, , &rod'.Plo X's 4,'(t .qe to Y~l 110 16,13 ~Cto 66 '10,0 0,01 r T 0j tre ,0 0.6 -6. qp',v'9' as%6 4 1 bq 0 - Aso t txLe OW4 boll. ck 4, 07C eilt, J~ Ck ,100 b t III t 'g~ 0 A'Vi ~ -ve Lffec t o~4 a trEtrisverse X-a6rit: t 1 B124,'B20" :field.- At.-Rt.,,mo1(1s_Auqba r-- below 7000, the drag coefficient in a laminar flow drops down to a value R a-;(- - conat, whereas &+- ReynoXlds numbers or above 7000 the drag coefficient rises with the increase of the magnetic field-.---The increase, drop,-or __ constancy of the drag coefficient is de- termined by the ratio of the Hartman e-ffedt--(braking-oal-concentrated motion by the magnetic field, accompanied by a velocity change and an increase of the drag coefficient) and of the suppression of turbulent pulsation of velocities, accompanied by a decrease of the drag coefficient In the present paper, the authors determine the effect of a magnetic field on the drag, on the velocity distribution in various cases, and on the mass transfer process which is directly connected wJth the structure of turbulence. The experimental arrangement (Pig. 2) is a system of canals and tubes with closed mercury circulation produced by a d.c. elec- tromagnetic pump (K). The measurements were made in open canals of rectangular cross section (3 om wide), one of which, 150 cm long, was laid between the poles of an electromagnet with a homogeneous trans- verse field of 1750 gauss, whereas the second one, about 100 cm long, was outside the magnetic field. The average depth of mercury in the canal was 4.5 cm. A flowmeter (B) was inserted in the system. At the Card 2/ 5 89427 Effect of a tranaverse magnetic... 5/197/61/000/001/001/002 B124/B203 passage of a current of up to 1000 a between the electrodes of the pump, and an induction of about 1500 gauss between the magnet' poles, the mean velocity in the canal attained 20 cm/sec. The Reynolds number varied in the experiments from Re - 6680 to Re - 16400, and the Hartman number from M - 0 to If - 41-5. A modified Pitot tube was used to measure the velocity at different points of the-canal.' Fig..3 gives some results of these measurements. Fig. 4 shows the dependence of ti-e uniform velocity dis- tribution coefficient 1P . U6/U (5) (U6 - velocity near the wall, max U = velocity in the flow axis) on the ratio M'/Re. Fig. 5 shows the max velocities measured in the horizontal plane at different Eartman numbers, and Fig. 6 the change of.the uniform velocity distribution coefficient with the field stress in the artificially roughened canal. The rate of dissolution of lead In a mercury flow is greatly slowed down by the magnetic field. There are 7 figures, 1 tablet and 10 references, 5 Soviet-bloc and 5 non-Soviet-bloc. ASSOCIATION: Institut fiziki AN Latv.SSR (Institute of Physics of the A8 Latviyukaya SSR) Card 3/5