SCIENTIFIC ABSTRACT SERGIYENKO, T.M. - SERGIYENKO, V.I.

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SCIENTIFIC ABSTRACT
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D S L F, 1, C (~l SS (7 r f rLS nt M,~(; Inst), coplos T~~o I'Z, KA 2-11 FiNOV' E I Yy L nemical study of Aclinc!~ thy Niy toc no . 2.- -,1-33- MIr";,p 165. Kh-,.,rlkovskiy farmatsevt4cheSkiy in:?ti~.ljtz t i',_- rn~. t% 1~,-, d 1,,,, 1964. VIROZUB, I.D.;SBRGIYENKO, T.M. Method of Drogressive increase of intracranial pressure in continuous experiment in animals. VoDr. neirokhir. 16 no.6:50-52 Nov-Dec 1952. (CLML 23:4) 1. Senior Scientific Associates. 2. Of the Scientific-Reaearch In- atitute of Neurosurgery (Director -- Prof. A. I. Arutyunov) of the of the Ministry of Public Health Ukrainian SSR. SERGIYEYKO, T. M. "Investigation of the Dynamics of the Cerebrospinal Fluid in the Diagnosis of Tumors of the Spinal Chord." Cand Med Sci, Sci-Res Inst of Neurosurgery, MinJstry of Health Ukrainian SSR, Kiev, 1953. (RZhBiol, No 8, Dec 54) Survey of Scientific and Technical Dissertations Defended at USSR Higher Educational Institutions (12) S': Sum. No. 556, 24 Jun 55 SERGITINKO, T.M. Technic of pneumooncephalography. Top. neirokhir. 18 no-3:57-59 My-Je 154. (MIRA 7:8) 1. Is Nauchno-isoleclovatellskogo Inatitnta, neyrokhirmrgii Ministerstva zdravookhraneniya USSR. (BRAIN,radiography, *pneumooneophalography, technic) SERGIYENKO, T.M.; MIKHAYLOVSKIY, V.S. Dynamics of the cerebrospinal fluid in cerebrocranial injury. Vop.neirokhir. 19 no.2:33-39 Mr-Ap t55- - (MMA S-7) 1. Iz Instituta neyrokhirurgil Ministerstva zdravookhraneniya. ROSPINAL FWM, in various diseases, head inj.) (HSAD, wounds and injuries, CSF in) SERGITFMO, TM. ;MTKHA VSKIY. V. S. Technic of kymographic registration of fluctuations of the cere brospinal fluid. Vop.neirokhir.19 no.4:18-20 JI-Ag '55 (MLRA 8:10) 1. 1z Instituta neyrokhirurgii Ministerata zdravookhrananlya USSR. (KY40GRAPHY, of GSF dynanics) (C7ARBROSPINAL ?MID, dynam!cB, kymograph7) SERGIYENKO, T.H.. kandidat meditainskikh nauk Method of increasing intracranial pressure under-chronic experimental conditions. Yop.neirokhir. 20 no.6:53-54 N-D '56. (MIRA 10:2) (CE'RIMROSPINAL FLUID, increase of intracranial pressure in animals (Rua)) Nervous System. Jibs Jour :Rof Zhur Biologiya, No 13, 1958, No. 60791 Author :Sorgiyonko, T. 14.; Zozulya, L. N.; Prikhodchonko, I. A. Inst :Mot 31'%ro-n- Titlo :The Blood Vessel State and Reactivity in the Dynamics of Intracranial Hoportension Reflected In the Fluid Pressure and Ophthalmoscopy Orig Pub :V ab.: Probl. neyrokhirurgit. T. Z. Kiev, Gosmodizdat USSRJ' 1957, 253-264 Abstract :No abstract given Card .1/1 148 KVIFNITSKIY-RYZHOV, Tp.H. [Kvitny-tslkyi-Ryzhov, IU.M.]~ MESTECHKINA, A.Ya, [Miestechkina, A.~A-1; S=J_M_.KO, a _j,.M. (Serhiienkol T.Mj Liquor pressure and the edema and swellin of the brain in experi- ments yith increasing intracranial hypertension attended with inflarWatory complications. Fiziol. zhur. [Ukr.] 7 no.ltl0l-106 Ja-F 161. (MIRA 14:1) 1. Ukrainian Research Institute of Neurosurgery, Kiev. (BRAIN--DISEASES) (HYPERTEISION) (EDEM) ::',Y A, L-- Ll 1; 1ayp I ihjr. k 7- d. 4 n ~ .2 40 L L .63.1)29-65 --Pu-4L---LjP(c) 14/JD/,JG - 'ACCESSION NR: AP5016347 UR/0149/65/000/002/0096/OldO 669.293 AUTHOR, Sorokin, I. P.. Kolltsov Yu. 1.;~Sergiyenko T. V.; Petrik, L, St ITITLE: Recovery of niobium from bulk zirconium-pyrochlore concentrates ISOURCE: IVUZ. Tsvetnava metallurglya, no, ~5 1965,-.96-100 iTOPIC TAGS: niobium, zirconium, pyrochlore, ore treatment .ABSTRACT:~ For the utilization of abundant zirconi=-pyrochlore ores, four chemical.? _JI separation processes were investigated, namely, sulfuric acid leaching of ccncen- -trates, sulfatization, leaching of concentrates with hydrofluoric acid, and loii- :temperature chlorination.* The bulk concentrates used were obtained by, flotation an(I !contained 5-7% Nb205+ Ta205 and 12-40% Zr02. In sulfuric acid leaching, maximum re-i ,covery of niobium was 94.3%, achieved in one hour.with a high concentration and high. !consumption of the acid. In the second process involving leaching of niobium.sul- :fate from the cake produced by heating a mixture of concentrate and sulfuric acid, ~maximum niobium recovery was 93.5-93'.9% at acid: concentrate ratios of 1.46-1.52. Jn the decomposition of rich pyrochlore concentrates with hydrofluoric acid, the Card 1/2..' - ----- - -- - L ~31~49-65 :ACCESSION NR: AP5016347 wacid concentration was varied from.5 to 40% and temperature from 20 to 700C.- 'Opti- mum recovery of niabium--99%--was obtained by heating the comminuted concentrate with a 15% hydrofluoric acid solution at 700C for one hour. In the final process, poor zirconium-pyrochlore concentrates were briquetted with 14-20% carbon and !chlorinated in a quartz tube at temperatures between 400 and,8000C. Maximun recovery ~of niobium--98%--in chlorides was obtained at a temperature of 6000C. Process time ,was 4'hours and chlorine consumption was 5 liters.per hour. At the same time, zir- conium recovery increased with the temperature. Chlorid6s obtained in this process i ,May be hydrolyzed to yield niobium concentrates or.utilized for extrusion of metal ,niobium after appropriate purification. Orig.~art. has: 2 tables. ASSOCIATION: Ukrjziprotsvetmet ~SUBMITTED: 210ct63 ENCL: 00 SUB CODE: MM'fGC.'j NO REF SOV: 004 OTHER: 001 F ;-Card- J - ~ 1~ -, F ;,~ . I I i- ! 11 1 . - -- - I ~. - - - .1 , I ~ sl'oft I ~101Yd, V., yefroytor. Bonchbcard adapter. Votizy,.. avi.-M. 16 no. I. ~.- -',-1 158. (MIRA 11:2) (Fadio--3quipmeont and cu-miles) SERGIIEIIKO~, V. fSerhiisnkop V.] Futu.T.a i6 built today. Znan. ta pratsia no.4-20 Ap :60. ~ 0 ITM 14. 12 ) (Bibliography-Scienc,e) GOLYSHIV, leonid Sergayevich; 4~~YICNKO..-Vas-il.iy.,A,.n-iisimovich [Mechanized cultivation of cotton grown in checkrows] Nekhanizataiia obrabotki kvadratno-gaezdovykh posevov khlopchatnika. Tashkent, Goe. izd-vo Uzbek SSR, 1955. 50 P. (MLRA 10:1) (cotton growing) 5 1 yc-[-q ~ 1 is satisfied. Otherwise the ratio must be considered probable. For the double coincidences in a double spectrometer the limiting values of the relative Card 2/3 intensity of the A-e- and e-e decay chains must be taken 22-2-13/ 17 A Double Magnetic Lei~se Spectrome* Win Improved Focalization or coin- cidence Registration for computation these limitinki- values representin,~ the linit" 4 where -.he and r-r chains can still be investio-ated. In connection with this an investigation cf the most intensive decay chains ofthe isotopes ThB, Au 198 and Ce141 as Ifell as of the coincidences betwqi~n several ,r -trans mutation conver- sions in the decay of Yb'69 was conducted. On the basis of these investiGations it was conclud,2d that aith the help of the described spectrometer it is possible 1) to investiCa-to the A-e decay chains, the relative intensity of which is not below 10-3 at an energy limit of the [:,-spectrum of from 0,5-0 * 1 MeV and 2) to investi6ate the e-e decay chains, the inten- sity of Ythidi is not below lo-5v The spectrometer was desiz;ned by B. S. Dzherelov. Constructional computations were perform- ed by P. A. Tishkin. G. S. Xvarter assisted in the startin. of the apparatus. There are 11 fi-;-ures and 35 re _~erences, 7 of which are Soviet. ASSOCIATION: Fizicheskiy institut Len_Jn.-rads':oj3o Gos. universiteta im. A. A. ,Zhdanova (Physics Institute Leningrad State University imeri A. A. Zhdanov) AVALLA- T-- Library of Congress Card V3 1. Spectrometer-Characteristics 'V 4 '3 -- 2': - 7 - c,,,,2 16 UT 07, b r 9, 7, r iy 1~ . K Sergiyenko, V. A. 5 5 5 ~-cn C(j ro-,-i ~j tmv 1, 11 ""t, 0 v komvvv:;J-onn,,/kh nri ra.,37.ade Tb "i 'OLICAL L-.ve,,i t i,.q i n,-- ij 1, SH fi va f-i -, i-c'f e s k av r-- , I 'q 5 8 vol, 7, i)i,. 791-794 !U,-!:;:1') I;T 155 H C' Tb b t a i n; -- d b:;- thr~ -irrat',; ation of a tanTaitim target - r- G' Mz~ ~, ai th ,)i.-uton~i an enerp,7 of i~* -'. The irraui~!ton lasted for several hours. The cliromatographic separation -,,.,as car- ried out 2o-.3o hours after irradiation. The coinciderce was investigated -.,.-ith the magnetic double-lens G-spectrometer of thp Unive-r-Q-ity Ltnin,-)i-aa (-?,ef i). The in-ves-tigat ion was refformf~d as One half of the Z-nectrometer re- corded the K- rand L-electrons 4. rom a certain y-transition, whereas the other half -r-corded the K- and L-line!- of the other transition. The eXI)erirI-,entvl results comniled in a table sho-.. the following. 1) A coincidence of the L-63 and f'ard 1/3 K-262 electrons. The line. which. pending final decision /IA 2 --7 - 5/2 6 155---->SOV 1, -onversion Electron Coincidence in the Decay of Ib Gd s d e r. o t e d a 6 eorj~.j'...tE: (:j-' T ' ~- L 00, 1 ~j,I n W I a d .-- it is pu-.-,si-blc-:, how~~ver. -that also i~-57 and L-63, .,rhich are generated in transitions, are contained in it. Th,:~ -.otal number of ccdncidences of' (L-063) amount,~,d to 12-:5 T,ulse, Del' hOUr, 22 of those -,.,ere random uuls-es and 101 were true oneo. The existence of coincidences of L-63 and. K-262 electrons- is beyond tioubt. The authors are of the opinion that these coincidences are essent-itilly-connected with tile cascade of the 1--transitions -,-,--i.th h9 -60 an-4262 keV in the nucleus of d 9 Coincidenr!es of L-, G nd -hese coinci-, 160 , loll + 163) electrons. The exi-Sterice of I dences cntilnot be -Ioubted. The folloviin4r combinaticns coul,] take ~,-.ert in coincidencea of' thi-s type: (V-. -, 01 ) (K- 161 -, 5(rr--105,32~( 5' (L-60; 00'(K-16',A)~ and Th--~ exi-stt~nce of these cascades is also substantiated by the con-,i-lic-ated c-aracter of the !spectrum of th~~ coincidence of '.,.'-elt?ctrcns or,*-FJ-n,,tinjr from the 16r) f 16 1 7 ) _ -~ 1., .1 , - h s i t j 0. nS I ~ qj fr.or~ the electrons o1' t -o-incidenc,: o' the 'f"'-149- and '-(V~0~161+ re ~'~ ne c' t 1 VE ine. U 0 :bard 2/3 +163,-electrons. The transitions an energy of hV = 118;8 :7. Z: C'n .-i:~ 1-~L: ion, n n L n~ i h, r fitc, t n d n the deca-.-- f rp ~7 The 2oincirlen-ce- -7im'L~M-ht into connection ~,Tith the !~,2'47 tran2i t icino. ~'oincidcnn,-- oi- t -o n h e i . - t.r c e 0 ot ind ~,,f' nd K- ~ 1 060-t 16 1 io bevond doubt. 'L'hat of W-(180+18194) and K-1,19 cin be n.-i:,umcd. T'here ,,re 1' table, and 6 refere:,ces, -1 c,-,' v,,~ich are !AT I ON IIauchno-iszledovatel 'skiy 'izichec!:4y institut L-nin.gr~.dzkotgr, gos. uriveircitet.- Zhd~!nova (,:Ci`.IItif'ir :I:-:-~-i-,---rch of 111`i.-,-sic~-3 -' the ~~tlite 'Uni'vertiity I'meni Z!-~danciv Card 5/3 173 C, j~ t och ~t j c t r Z) M. Th- fn pj 7 d Y' l t de- u ou n4 d e c '.tion o I na i t a t a. re - tal t t the J - t on 1/5 1 t ' ~ on- r 10! - 1 0 dence ~_,;-c - of the o; t7 lie ' n! 0;. t a r . . rtj c ar(l 0 7 r SOV/148-22-7-6/26) Coincidence of Ccnversion -.1ertrons in of Lui73. Precise De- termination of the Lu172)___> ,, level of 351 `2 keV is not in the rotation band of the ground state and avi~arently is a one-particle level.(T.n this range the vibration levels are higher). In the third chaDter the quarital ch-zracteriotic_~ of the excited states of Yb173 a-,e investigated. The type of the -Iihird level at E = 35122 kell was still oi)en to question, Evidence i~! furnished showing that it must be of a 7/2+-type. -vea if deviations -from theory of three orders of magn-itude are assumed to exists, the uniqueness of' the conclusions is not diminished. in chaDter 4 the relative probabilities of the transitions in the decay of Lu173 are Precised. The 5th section deals with an invest-i-gat-ion, of the relative intensity of capture at the different levels of Yb173. It is sho,.-;n that the ouantal characteristics of the ground st of Lu173 coincide with that of the excited state of YbT~~ at an energy of 2,51.2 keV. The transition between these two levels must be a uermitted one. .From parity considerfl*~qns 1 Yrb bard 3/5 it anDears that the transitions to all lower levels of ' 3 " O~ V /4 8 -2 2 - 7 -6 f I I lo-incidence of Conversion -lectro in tile D Lu -1. Precise De-, terminaticnof the Decay-Scheme Lu 773 * 73ay ;> YO are forbiddeii. Among these, Vne transition to the 7/2 level is the most Drobable one. The quantit ve anallysis of.the e-- e- coincidences in thL, decay of LuM > Yb173 is' the subject of the 6 th,5ection. Based upon a comparison of the cxperimental and the comnuted co.- incidence rate the following is stated: 1) The experimental coincidence rate differs frOM the COMULIted one by a factor of 7 - 9, if the K-78,7 line comes in in the measurements. This is probably due to the fact that the K-78,7 line, being the weakest one in the spectrum of conversion electrons, is not recorded by the coincidence counter. 2) For coincidences not connected with the K-78,7 line the experimental and the theoretical v&luen agree within a limit of + 25 ~,'I, with each other. The second-year students of the State Universit3~Lenin- grad, V. Bunakov and A. ~kyakusheva assisted in the coincidence measurements. A. N. I'lurin, G. I.-I. Corodinskiy and V. N. Pokrovskiy communi- cated the results of the investigation of the y-spectrum of Card 4/5 Lu173 to the authors previoiis to the UUblication of their -1 -6/26 F. 7-~ Precise De- lo-,mci.-ence o' :~Iectronv in the Decav of L11 tv,,-maination o, rh.:~ Decay--.:chemp Lu173 - > ybl73 p.LT:-par, There are 7 figures, 7 tables, and 19 references, of wilich are Soviet, fiz,chezkiy institut Leningradsko-c g~o:3. univer.9itet~.i im. A. A. Yhdanova (.'*cientifle It'esearch Inntitute of 11hvaics, at tlie L,-ninerad 9t:.t~! Univaroity imeni A. A. ZhdaziovN, Card 5/5 '.U'HOPS: Dzhepelov, B. S., Preobrazhenskiy, B. K., SOV/48-22-8-8/20 Sergiyenko, V. A. 147-43 147 TITLE: Conversion Electron Coi~cidences in the Decay Eu m (Sovpadeniya konversionnykh elektronov pri raspade EU 147 ---% Sm 147) PERIODICAL: Izvestiya Akademii nauk SSSR, Seriya fizicheskaya, 1958, Vol. 22, Nr 8, PP. 945 - 948 (USSR) ABSTRACT: The authors employed a double lens p-spectrometer (Ref I) in the investigation of the coincidences between the conversion electrons prodticed in the decay Eu147 -4 sm'47(T 1/2-'j 25 days'. EU147 -4-Sm147' -transitions with energ 1214~ and 1j X ijUl -4~ -, depay. 97,b keV (Refs 2 - 4 ) were found in tht, _ "4SM The transition with an energy of 80 keV which was found in the paper given by reference 3 and in the experiments could not be observed in this investigation. However, conversion lines with 76,3 keV were found (Ref 2). The spectrum of conversion electrons up to an electron energy of 200 keV was taken with one half on the spectrometer. The source Card 1/3 was directed with its active side towards the spectrometer. Conversion Electfon Coincidences in the Decay SOV/46-22-6-8/2o 147 147 Eu S m Fij,; 1). The number of conversion lines, their po5ition W-;thin the spectrum and their relative intensities agreed with the data presented by Gorodinskiy et al.(Ref 3)- Because of an insufficient resolving power of the spectrometers the K and the (L + DO lines of the transition 76,3 keV did not stand out clearly. The L-line could not be recorded separately from the K-LL line of the Auger (Azhe) electrons and the (L + LI) line could not be distinguished from the K-121,0 line. Coincidences were observed between the K-121,0 and K-197,6, the (L + 1.0-197,6 and (L + M)-121,0 electrons with the K- Auger electrons as well as the coincidences of the K-121,0 electrons through the slit in order to determine the (L + 11) lines of the 76,3 keV transition. Besides, coincidences between the K-121,0 and the K-Auger electrons were recorded. The number of true coincidences varied between 3,5 and 179 pulses per minute-1. The ratio of true and random coincidences ,7as 9 : 1 The experimental results are compiled in a table and described (Figs 2,3). The data collected agree with the ~a.cd 2/3 decay scheme of Eu147 (Ref 5). The authors acknowledge the Conversion Electron Coincidences in the Decay SOV/48-22-8-8/2o EU147 ---~ SM147 interest shown by A.A.Bashilov. V.Bunakov and Yu.Zvol'skiy assisted in the measurements. There are 3 figures, I table, and 5 references, 5 of which are Soviet. ASSOCIATION: Nauchno-issledovatelskiy fizicheskiy institut Leningradskogo gos.universiteta im.A.A.Zhdanova (Scientific Research Institute of Physics at the Leningrad State University imeni A.A.Zhdanov) Card 3/3 .LUTHORS: Dzhele;;ov, 1- S, Preobrazhenskiy, B. K., SOV/48-22-8-9/2o Serr-iyenko, V. A- 167 167 TITLE; Conversion Electron Coincidences in the Decay Tu -4 Er (Sovyaden konversionnykh elektronov pri raspade '16 iYa167 Tu Er PERIODICAL~ I--vestiya Akademii nauk SSSR, 3eriya fizicheskaya, 1958, Vol, 22 , Nr 8, PP, 949 - 951 (USSR) ABSTRACT- The authors investigated the conversion electron co~ncidenc between the conversion transitions of the decay Tu167 -4 ErT97 "'T.Iil~-' 9,6 days) with a P-double spectrometer (Ref 1). Tu167 was obtained by bombarding a tantalum target with 600 keV protons. The neutrcn deficient Tu-isotopes were separated from the rare earth fractions in a chromatographic column. In the decay Tu167 --~ Er167 transitions with the following ener,gies ta?e place (Ref 2-4): 56,9 and 208,1 keV (average values acco-nding to references and 4), The spectrum of the conversion electrons of TuI97 in the range to about 200 keV was taken by one half of the spectrometer (Fig 1). The Card 1/3 position of the lines and their relative intensities agree Convars,ion Electron Coincidences in the Decay SOV/48-22-8-9/2o MU1617 167 -4 Er with the spectrum given in reference 2. The coincidences bet,.-ieen the conversion electrons of the transitions veith h1! = -1,6,9 and 208,1 keV and between those electrons and Lhe Au~,7er electrons from the K-series were examined by the authors, The results are *led in t' table and explained "Jge 7 which was advocated (Fig 2). The decay scheme Tu in t~.e re-erences 2 and 3 (Fig 1) is substantiated by the ex,;-`erii,.iental results. T`:o 7~uthors express their gratitude to K.Ya.Gromov and to t',~~ L;tudents of t1le Leningrad State Uni- versity, V.Bunakov and L.Popenko. There are 2 figures, 1 .able, and 12 references, 6 of which are Soviet. ASSOCIATIO,,': Nauch-no-issl --dovatel I ski., .r fizic-heskiy inst~tut Leningradskogo gos.universiteta im.A.A.Zhdanova (Scientific Research Institute of Physics of the Leningrad State University imeni A.A.Zhdanov) Card 2, '-5 Conversion Electron Ccincidences in the Decay SOV/,~8-22-8-9/2o Tu 1167 --) E r', 6 -t Card 3/3 Cal .1'si A-I^I a 0 001 Ki sits! V 6.3 8 .3 & 13-A 12 4JI 18 SIP v A1#411 9 v a Xq 21 (7 21 (a) AUTHOR, ~f~ V89 -7.! V/2i TITLE. (U V.... PERIODICA1, Ato=uy. oosr~riya. 195). 7,1 !tr -(-!2 (7"P.) .3- LBZr]LACT, The IX All-Cr.1- C-f.-n- 1-0. fr~ -6 to 100 loot r , th a At i p~rt-.t -f 1.1 h following fi.Ldz. !N~liix Th-ry l- f A. 3;.DA,7d- i d L. 1% r. i. ~"_L_ __EjtkrALu, L. K. P.k.r, L. A. 51- raills-lone it d.fl It!-. 'f the ft-r-- %y ~*- of tti go-i"set 40d.I T B (W)s Conn. terct I.,- 7f ;,~ir--latt,c N (IAZ) , rh. ~p. -t Ir th, -;- u l'ity -1.1 to -:1.i cc, the ~f -1-11'~." their -ant. if I 1~. f nqrt X-*--kl~ (UE". th L-t- utatality . . .-~A of C~d 1/3 pr: out tg. 1. the th-rj c f of th -4 neutrino In the yof the n! between the trazia-ra.l. .1-trIn onj ct -~l polarizatlea of J- u-t. -,ria !.n The -N~ .r i 3~46 end C.60. 1).ny if 9-1.1. t~~ AMLfzly.,. V. -h-r, I- % Kher-kqz~tj institut 1-ti-4t chez,kov), 8 3 20 T h 126 9.30 (p,r), No (p,r), " 1'~"'4 remotions. A. C.-V W or, not r -t:lif g hot b __z rt th ,o.-I.tI mul ti "Y haxg.'~ t."'. (c. S, 0. -1 s. FS2J.1ald, - .. W - _4*_,u 1L.-I-11 Now 5. 61 53, o155 (LZU). pthe b-t. :f 1h, 71-1- 4.... or tl,. &.61mo.ring. T* (1, Ch ?be repro.ontativos if the )'.rAjtsr:t- ra,!Lct-);21Lch,a1(oy b(Hini -try tf to, IrIvatry) I -or, 11 1 Po tlp .1c..4 ty I, S. D-h t.bl.. and work. ou4&.t -.-. to p~blt.! .1 .,to quickly in order in be of ro4l jja to -k!e ex;vriment4r. Co,rd 3/3 .21(7) SOV/48-23-2-9/20 AUTHORS: Dz-elepov, B.-S., Sergiyenko. V. k. TITLE: Coincidences Between Conversion Electrons in the Gd146 and Gd151 Decay (Sovpadeniya mezhdu konversionnymi elektronami pri raspade Gd146 i Gd151 ) PERIODICAL: Izvestiya Akademii nauk SSSR. Sezi.,afiziehaskaya, 1959, Vol 23, Nr 2, pp 211-21Q (USSR) ABSTRACT; The authors investigated the Gd146 --.;,.EU146 and Gd151 --.* EU151 decay, that is to say,they measured the intensity of coincidence between conversion electrons of the most intense lines. The results are listed in table 1 and illustrated in figures (Figs 2, 3). The coincidence of transitions 114.8 and 115-5 kev (coincidence AA) was found. It is unambiguous and is regarded as a llself-coin~cidencell'of the electrons of line K(114.8+115-5)- If both lines were separated, there would is only half the intensity. The authors proved the coinq~dence of the lines (K-114-8+K-115-5) and(LM-15-5+LM149.8Gd140) on the basis of the coincid~e'nce of transition 155 kev with the transitions 114-B and 115-5 (coincidence AC). Furthermore, the authors determined Card 1/2 the coincidence of the lines LAI(114.8+115-5)+K-115 and the SOV~g 8-23-2- ?~ 2o Coincidences Between Conversion Electrons in the Gd' and Gd ' Decay Auger electrons (K series) (coincidence BA). The components of the A, B and C lines are given (Fig 1). The determination of intensities of the individual omponentg is only outlined. The scheme of decay from Gd149 to EU14 is given. All-tran i-- tions belqq to theltype Mi. The sequences are 1-9 2-9 3-9 4-- In the Gd > Eu 51 decay coincidence (L-21-7)(K-175) may be regarded as proved. The authors thank A. A. Bashilov and.B.K. Freobrazhenskiy for the source, A. A. Bashilov also for communication of his results. A. Andriyanova, Kh. Nasyrova, ~Students of Alma Atinskiy gos. universitet (Alma Ata State University) assisted in the coincidence measurements of 146 151 Gd , and A. V. Kudryavtseva in that of Gd There are 6 figures, 2 tables and 9 Soviet references. ASSOCIATION: Nauchno-issledovatellskiy fizicheskiy institut Leningradskogo gos. universiteta im. A. A. Zhdanova (Scientific Research Institute of Physics of Leningrad State University imeni A. A. Zhdanov) Card 2/2 21M SOV/48-23-2-lo/20 -AUTHORS: Dzhelepov, V. S., Preobrazhenskiy, B. K., Sergivenko, V. A. TITLE: Coincidences of Conversion Electrons in the Decay of Gd147 and Gd149 (Sovpadeniya mezhdu konversionnymi elektronami pri raspade Gd147 i Gd149) PERIODICAL: Izvestiya Akademii nauk SSSR. Seriya fizicheskaya, 1959, Vol 23, Nr 2, pp 219-222 (USSR) ABSTRACT: The spectra of conversion electrons of a Gd fraction were recorded by means of a two-lens spectrometer up to electron energies of 350 kev (Fig 1). The results of investigation of the coincidence of conversion electrons produced in the decay of Gd147 and Gd149 are contained in a table and shown in fig- ures 2 and 3. The scheme of Gd147 -). EU147 decay was determined from the coincidences of the lines K(396+370) and 111096+370) with the K line (229 kev) and the scheme of Gd149 30 Eu149 decay in Gd149 from the coincidences (K-149-8)(K-346) and (K-149.8)(W-346) (Fig 1). The authors Card 1/2 thank N. hl. Antonlyeva and A. A. Bashilov for interest in the SOV/48-23-2-lo/2o Goincidences of Conversion Electrons in the Decay of Gd147 and Gd149 paper. A. Andriyanova and Kh. Nasyrova, StudaiLts-of the Alma- Ata University, and V. Bunakov and I. Myznikov, Students of the LGU, assisted in the measurements. There are 3 figures, 1 table, and 5 references, 4 of which are Soviet. ASSOCIATION: Nauchno-issledovatel'skiy fizicheskiy institut Leningradskogo gos. universiteta im. A. A. Zhdanova (Scientific Research Institute of Physics of Leningrad State University imeni A. A. Zhdanov) Card 2/2 21f7) SOV/48-23-7-16/31 AU'2'iiORS': Bunakov, V. Ye., Dzhelepovt B. S., Zvollskiy, I., Sergiyenko,V.A. TITLE: The Coincidences of the Conversion Electrons in the Decay Se75----* As75 (Sovpadeniya konversionnykh elektronov pri raspade Se75 0 As75 ) PERIODICAL: Izvestiya Akademii nauk SSSR. Beriya fizicheskaya, 1959, Vol 23, Nr 7P pp 859-863 (USSR) ABSTRACT: The authors investigatedp by means of a lens-~ -spectrometer, the coincidences of the conversion electrons-of the above- mentioned decay, the isotope s75 being obtained by a (nfa-)_ reaction in the irradiation of the enriched isotope'se74. The decay of Se75 was investigated in a number of papers; the lines of the d--spectrum and the coincidences are indicated. The spectrum, recorded by the spectrometer, of the conversion electrons of this decay is shown in figure 1, and is supple- mented by the level scheme. The observed coincidences of conversion electrons are indicated, and it is ascertained that their relative number lies between 0.5 and 3. The coincidences* Card 1/2 of various lines recorded by the spectrometer are shown in The Coincidences of the Conversion Electrons SOV/48-23-7-16/31 in the Decay Se 75 0 As 75 several diagrams, and the results are discussed in detail. Pinally, it is stated that the results obtained improve the data of previous papers (Refs 3-5). The authors thank A. V. Zolotavin lbrTiadug.at tzdr didposal the isotope Se75 and mention L. Gorzhak, student of the LGU, who participated in the measurements. There are 5 figures, 1 table, and 6 references, 3 of which are Soviet. ASSOCIATION: Nauchno-issledovatellskiy fizicheskiy institut Leningradskogo gos. universiteta im. A. A. Zhdanova (Scientific Research Institute of Physics of the Leningrad State University imeni A. A. Zhdanov) Card 2/2 DZHELEPOV, B.S.; ZVOLISKIY, I.; SEFtGIYENKQ-,-V-A,---- Coincidences between conversion electrons produced in the decay ,;, Dy-L of Ho160 -- 60. Izv.AN SSSR.Ser.fiz. 25 no.10:1228-1245 0 ,61. (MIRA 14:10) 1. Leningradskiy gosudarstvennyy universitet im. A.A.Zhdanova,, Ob"yedinennyy institut yadernykh issledovaniy. (Holmium-Decay) (Dysprosium-Decay) DZHELEPOV, B.S.; ZVOLISKIY, I.; NIKITIN, M.K.;-SERGIYEITKO, V.A.. Coincidences between conversion electrons of the dysprosiwa fraction. Izv.AN SSSR.Ser.fiz. 25 no.10:1246-1255 0 161* (IMA 34.10) 1. Leningradskiy gosudarstvennyy universitet im. A.A.Zhdanova Ob"yedinennyy institut yadernykh issledovaniy. (Electrons--Spectra) (Dysprosium--Decay) SI/048/62/026//002/005/0,72 3101/B102 AUTHORS: Dzhelepov, B. S., Zvol'skiy, I., Nikitin, M. K., and Sergiyeriko, V. A. _ TITLE: Coincidences between conversion electrons resulting from the Dy153 - Tb153 decay PERIODICAL: Akademiya nauk SSSR. Izvestiya. Beriya fizicheskaya, v. 26, no. 2, 1962, 202-204 TEXT: The coincidences between conversion electrons of the transitions of 80.81, + 82~48; 99.7, and 147.5 + 149.0 kev with Dy153 electrons of 170-230 and 173.6 kev were studied*(Figs. 1, 2). The DY fraction was chromatographically separated from a tantalum target bombarded with 155 660-IMev protons, The sources contained Dy153 (T = 6.4 hrs); Dy 157 159 1531/2 1555 (10 hrs); Dy (8 hr.); Dy (144 days); Tb (2.3 days); and Tb (5 days). As the measurements with a double-lens beta-ray spectrometer began 18 hrs after the irradiation of the Ta target and took about 15 hrs, the short-lived Dy isotopes with A