SCIENTIFIC ABSTRACT LEVITSKIY, P.A. - LEVITSKIY, S.M.

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SCIENTIFIC ABSTRACT
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SANNIKOVI V.H.; IEVITqKIY, P.A., otv. za vypusk. (Tecbnoiogical progress and its econoric effectiveriess in the mamfacture and appUcation of lacquers and paints) Tekhniche.- skii progress i ago ekonomichoskaia effektivnost' v proizvod- stvo i primonenii lakokrasochMkh materialov; korwpo;~ lektsil. KharIkov, KharlkovBkii politekbn. in-t im. V.I.Lenina, 1960. (KIRA 14:9) (Paint) (Lacquers and lacquering) Z49IUSp F.K.j LIVITSKIYs P.A.9 otv. %a vMok [use of plastics in industrial and civil construction; lecture plan] Primenenie plastmass v promyohlennom i grazhdanokom stroitelletve; konspekt, lekt9ii. Khar*kovg H-vo vyashego i srednego spetaialinogo oVrazovaniia VSMq 1960. 22 Pe (MIRA 24s7) Qlastics) (Building materials) P -1 -EVITSKIi, P.F., Vet. ffTreatment in bites by the Kaznskov's viper (vipera Kaznakovi Nicol)." SO* Veterinarlia 28(3), 1951~ p. 35 DM VP ME USSR/Biology --Zoology Card 1/1 Pub. 86 - 32/37 Authors. I Ievitskiyo P. F. Title t New facts in the biology of the turtle Periodical : Priroda 43/10j, Pao 1191 Oct 1954 Abstract t A description is given of experiments which proved that the swamp turtle (Enwo Orbicularis L) besides eating vegetables,, also catches and eats water fowl. Illustration. Institution : Submitted : LIVIT:;I:ly, P.F. MW ~! The black woodpecker in the Ukrnine. Zool.xhur.34 no.6:143P,14)? 11-D 155 - (MULA 9:1) I.Vodno-sanitarny7 uchastok pristani g.Kremenchug. (Wicraine-Woodpeckers) LEVITSKIY,-.,,,t~,,i,,,(g.Xromanchug, Poltavskor oblusti) P Distribution of the Caucasian black partridge. Priroda 45 n0-7: 115 Jl 156. (XLRA 9:9) (Caucasua--Partridges) A p 1.:_~ LXVITSKIY, F.F. Fish in the food of crows [with summar7 In Englishl. Zcol. zhur. 37 no.8:1263 158,, (MIRA 11:9) trows) (Birds-Food) LIVITSKIY, P.F. (Holitopoll) Nutrition and biology of star]Jnga. Priroda 52 no.10:123 163. (MIRA A 14(5) SOvi 5 -5 0, - 1/16 AUTHORS: nein, A.A., and Levitskiy, P.I. TITLEt Res..i;s of Geological Prospecting for Oil and Gas in 1956 (Itogi geologorazvedochnykh rabot na, neft' i gaz za 1^~5C g.) PERIODICALs Geologiya nefti i gaza, 1959, fir 2, PP 1-5 03SIO ABSTRAM According to the new 7-Year Plan, oil and gas production in the Soviet Union shall reach by 1965 an amount of 230 to 240 million tons of oil and up to 150 billion 0,*:'of gas. The plan is based on the successful development'-of oil and gas production in 1956. General information is given on new gas and oil strata opened in 1958 in the following regions: the Volga-Ural province; the 'Cis-C&Wasian region; the Dnepr-Drnets depression; the Cis-Curpathian flexure; AzerbaijaTw Turkmenistan and Uzbekistan. So, for instancel gas from ,AriLSsic deposits reaching a yield of 4,000,000 m and from Triassic deposits with a yield of 1,200,000m3 per 24 hours was discovered in the Bellsk utratum and a -as fountain was obtained from a depth of 4,750 m on the Apsheron Peninsula in Azerbaijan, producing 500,00cm3 of gas and 200 tons of condensate. Inspite of the aforementioned successes _ard 1/2 a series of deficiencies does still exist in geological prb." SOV/9-59-2-1/16 Resul-to of Geological Prospecting for Oil and Gas in 1958 opecting, due to insufficient scianic pru3pucting cf struc- tures causing delays of industr'.41 1,roduction,,Ind due to the lack of equipment. The aut"torastre3z the nocessity of opeeding-up the supply of irproved reo~hyaical equip- ment such as Irilling installations ("Mmets-Shmidt", URB-5; URB-7~, otc); core lifters; chisels, core bits and stratum testers. Tho supply of means of tran3portution for desert, moor and taiga condition3 is re-~uired au well. ASSOCIATIONs Gosplan Card 2/2 -1-;VITSKU Dil and Las proapectinZ; c_,i cLt in t~c, 'n 196C and Problems of its do-,elc:--.!rt -In Geol. re-.j -azc, 5 no. 231-5 F 161. .14:2) (Petroleum geoloLry) (Gas, ILutral_-Geology) X i; M AMR- L, w w- DE ERMNER, Mark Mironavicb., doktor ekon. nauk; VAYIMH, I.Ya., nauchMy red.; LEVITSKIYj red.j MRUShEV, I.M., red,; PM1OMLREVA-,7-JV.-JL , tokhn. red. (Economics of the petroleum industry of the U.S.S.R.]Ekonomika neftianoi proqrshlonnosti SSSR. Movkva, Ekonomizdat 1962. 391 p. NMA 15-8) (Petroleum Industry) IZVITSxry, P.I. Brief account of the results of oil and gas prospecting in the U.S.S.R. in 1961 and probloms for 1962. Geol. neftl i gaza 6 no.1:1-7 Ja 162. (MIRA 15:1) 1. Gosplan SSSR. (Petroleum geology) (Gasp Natural--Geology) LITITSKIT, P.M. onZalMnges In the blood vessels of * rabbits oar. 3*t. v RO.3:80 my-je 054. (XLRA 7M 1. Gomeltskly pedagogicheekly institute (Blood vessels) Name: LXVnIjKIr,, P. M. Dissertation: Cbsmges in rabbit blood following rectal aftinistratiou of beteroserur, and dwir role in the nervous system Degree: Cand. Biol Sci Affiliation: Belorussian State U imeni V. I. Ienin Defense Date, P2.ace: 1956, Minsk Source: Knizbnaya LetopiBI, No 1, 1957 3-2-24/32 AUTHOR: Parmenov, V.1.9 Doteent and Lovitekly, P.M. TITLE: X-Ray Metbod of Instruction at the Natural-Science DepartaenU of Pedagogical Institutes (Rentgenologichookly zetod v pro- podavanii na yestestvennykh faku3!tetakh pedagogicheskikh in- atitutov) PERIODICALs Vestnik vyeshey shkoly, Feb 1957, # 2, p 69 (USSR) ABSTRACT: -the authors state that instruction In anatomic-pbysiological courses by the natural science physical training faculties of the pedagogical institutes is inadequate. This is due to the fact that the Chairs of Anatomy and Physiology are poorly equipped and use.poor methods of instruction. The authors enumerate the d6ficiencies in teaching anatomy and poiht to the X-ray method of instruction adopted in 1950 by the Gomel' Pedagogical Institute. The good results achteved are emphasiz- ed and the use of X-ray photographs as a means of visual inv struction is recommended. It is also suggested that the in- stitutes be supplied with cheap, portable X-ray units. They could also be used successfully in the agricultural institutes Card 1,12 when teaching the anatomy of domestic animals. USBR/Humn und Animal Physiology - (Normal and Pathological). T Blood. Blood Transfusions and Blood Substitutes. Abs Jour : Ref Vhur Blol., 110 If, 1959, 17328 Author : Levitskiy, P.M. Inst : Wmell State Teachers Institute Title : The Role of Nervous System in Changes of Blood of Rabbits after Rectal introduction of Heteroscrum. 2nd Report. Orig Pub : Uch. zap. Gomel'sk. gos. ped. in-t, 1957, vYp. 5, 152- 165 Abstract : The content of Hb, nu:nber of erythrocytes (E) and aggluti- nation reaction were determined in rabbits after rectal introduction of heteroserum. (HS; 100-150 ml). E were analyzed In blood smears. The role of the reryous system in hematological shifts after introduction of US was stu- died by means of partial exclusion of regions of the Card 1/3 -USSR/Euman and Animal PhysioloFj - Normal and Pathological) - T Blood. Blood Transfusion and Blood Substitutea. Abs Jour Ref Zhur Biol., t1o 4, 1959, 17328 nervous system durine the HS-enema. Reccptory functions of the rectum were decreased by means of the introduction of 4-5c) physiological solution; the function of the spi- nal cord was weakened by cooling it with ice shavings on a shaved strip on the back of the rabbit; the function of the brain was decreased by means of ether nurcosis. Three ddys after the introduction of hetcroserum, the amount of E decreased on the average by 25-30%, the 3mount, of " by 10-12%. Deformation of E and microcytosis were observed; the agglutination reaction of E uith tLe same serum changed. Fractioi-.al and simultaneous decrease of the function of receptors of the rectum and spiial cord leveled off the hemolytic shifts. The application of nar- cosis also softened the henatoloric changes and repelled by the 3rd day after the introduction. Rectal introduc- tion of 100 ml. of physiological solution after repeated Card 2/3 27 - USS.R/Human and Aniral jilysioloa - (Normal aid Pathological). T Blood. Blood Transfusioa and Blood Substitutes. Abs Jour Ref Zhur Blol., Ito 4p 1959P 17328 applications of Hs induced an effect similar to the in- fluClice of the serums themselves, i.e., a corditionel reflex was formed, which was ir-Mbited ujder the iDfluen- ce Of narcosis during the period of introduction and extinguished after a 6-month interruption in the experi- McDts- -- M.B. Golldberg Card 3/3 INVITSM. P.H.jJ"d.biol.nauk Using a rabbit in experiments on the subject wBlood circulation organs.w Biol. v shk6le no-5:37-38 S-0 158- (MMA 11:11) 1. Gomellskly pedagogicheokly institut. (Heuatology-Study and teaching) (Rabbits as laboratory animals) LIVM~IT, P.M.. kand.biol.nauk loosson to studying the subject IlklICA, Biol.v shkole no.5:42-43 S-0 159. (MIRA 13:8) 1. Gomallskiy podagogicheskiy institut. . (Reflaxes--Study and teacbin,-,) IZVITSKIYI P.M.., kand.biologicheskikh nauk Visual aids in biolo&7 from the organs of poultry and rabbits. Bic'.. v shkole no.3:84-85 XY-Je 162. (MEiA 15:7) 1. Xirovo adskoy pedagogicheskiy institut. fBiology-Audio-visual aids) SIDOV, 1,R., kandidat maditalmikikh muk; ISVITSKIT, R.N., glavrqy vrach. Mass survey of arterial pressure in the population. Sov.med. 17 no,7:33 JI 153. (W-2- 6:8) 1. Terapsvticheskoye Weloniye Stavropollskoy myonnoy bolinitay. (gypertension) (Medical statistics) M S, 4 X T-, T FIMSE I LOV, E0*-L0I'AA-l10N S07/5410 Tazh!~cnt3kaya konrerentalya po mirno-mu lzpollzovanlyu atomnoy cnerZli, Tanhkent, 1959. 'ErIvI.-I (.:ralzactionn of the Tn~hkent Confercnc,~ on the reaceful -~3 of Atcmic Encrgy) v. 2. 1-1-vo Al. IC.)60. 449 p. Errata allp inzerted. l,c.00 cc;~Ie~i prInted. Spcnooring Aocnc~r: Alcadeniya naul, Uzbalknkoy SSR. Res-~,onslbla Ed. : S. V. Starodubtzcv, Academician, Acad(:-~iy of ;~.CjCrjrFl3 U-bck 3311. Editorlil Board: A. A. Ablullayc.,, didata of Fhyilc3 and D. N. Ab,laur,.nulov, DC:-.*uor 17~ Z;ciencea; U. A. t..-Ifov, Acal,: ~j of Scicnce.3 Uzbek S311; A. A. Dorolulina, Ga-,;l,.',,li';e of Diolo,,-_Ical 3-~Itncej; V. 11. Iva:ihev; G. S. A. Klv; Ya. :". i~,bnnov, CandlJal e of Friyalca and A. Z. 11'1'colny,~v, Canlidate of 1.1--dical Sclenecn; D. Nl!~hanov, Of C.".. -~Jca'A- S-Iencen; A. ~.' Sadykov, Corruz;pon-ling :Tf-rbor, Acvic'ny of ZcIcnaLs UISR, Academician, Academy Of SCicnCC3 Uzbek L311; ~'u. .11. Talanin, Cal%j 1/20, Ara-,~ttctinris of the Tazhkent (Cent. 10 ,"znlJdate of Fiy~--Ics and ,athc-.,~atica, Ya, Turakulov, Doctor r~' !dolc,-I~nl J-1ences. Ed.- R. I. am=idov; Tcch. BrI.. A. 0. P -A bsnkhzn~v a. F1JT1R-'r,---'-7 :~:he rub1A:at-4cn 13 !ntcr,"1cd frr .1sl~-ntific and in v,~,-rc ralicac!lw I:G'.C-C3 ,r.] nu~,Icar radint.en aro? ul,-) f~r ro-~arch In lcGica,, an:1 technological field-, 113 art'clc3 rrpr,.-~-.nT~q the :!eccnd --~P-iE: Thll.~ collection ef -o' or th,) ~7ran,,,astic-.,i (,I' the T;L.,hkc-it Crnff-:-~-rre on t,- f"'.-Clul Vziei or Atcmict F-v~r~-j. ln,,11-illua' vl~,) a wIlde rang- of problr-z.-, In ~'.n,~ f1cl-I cf !n~.ILdlrg: pr,-f1ucticn and chc,~Af:.,l nnally~.',j cf ralira 13ntcp,.~3; Inv,-itIgatIcn of tho kinct-le-i cf cttmlci~ by ncan3 of 13otcpco; application of a;e:tral analyili for the rr~nura,-.turlng of radioactive prr.,--araticni,; ralica-.tive-, for determining the content or eic~Icnta In the rcrka; and In analysis of methods for obtaining ptire eubztancen. t;ertain i,ard P/20 'Iranzactiona of the Tachkent. (cont.) sov/5410 in 3 t--u,-.- cnt3 used, such as autc-.-it ic reCulatora, flo=zitcrz, level and high-senoltivity rftrr.-,a-rclaya, are dczCrjb,-d. No Varz,-,nalitiea are zrmtioncd. Ruforencea follow IndIvidual artiolcA. TABIX OF CONTM,TS: RADIOACTM MOTOFM AND NUCLZAR RADIATI(W IN ENGIIN7=14.10 MID GEOLOGY Lobanov, Ye. 11. (Inatitut yadernoy 11.-Iki U=R - Institute of Iluclear Phyzics AS UzSZ11]. Application of Radioactive Isotopes and Nuclear Radiation in Uzbekistan T-'ksar, I. M., and V. A. Yanumhkovokiy [Institut fiziki AN Latv SLR - Institute of Physics AS Latvian SSR]. Frobloma of tho Tipification of Automatio-Control Apparatus Based on the Use of Rndioactivo Isotopes Card 3/20 Transaotions of the Tashkent (Cont.) SOV/5410 Phy3ion AS KazSSRJ. Experimental Application of the Scin- tillatiot! Gamma-Defectoseope 47 L-vitokiy A. M. Curevich, D. F. Pavlov, and N. -!L____ _j Doolotbolv:ov. [Inatituto of Nuclear P-hyalca AS UzSSOR]. Ca-.~_aa Radiography Reinforced Concrete 53 fakobnon, 1. 1. (Tachkentokiy inntitut inzhencrov zhelazncdo-.-uLh- no3o trannporta - TaaWjcQ,'InztItu'w of Railroad Tran.3portation Eng-Inocral. Garmagraphy of Farti3 of RoIlInG, Stock 59 Chubax,ov, L. B. [Tuhkant Inatituto of Railroad Trano3ortation EnCincera). Gamagraphy of Welded Joints of Pipes it; -he Civcu- lation System 69 I*.uminov, .1-1. 11. [Uzbekalkly eo:iudar,wcrrVj unlverolt,~t In. A. Navoi Uzbek State Univeroity imeni A. Navoij. Fo:,aioillty of ~pplylng Radioactive Cobalt for Wality Control in Brickwall Laylr& 71 Card 6/20 - LI9VITSKIT,_8,-jjsvytar'kyi, S.], kand.fiz.-ditem-nauk no.7116-21 n 163- Star Ughted on earth. lailkii i IbYttig 13 (miRA 16:10) ; .-- o-: I ~ r. - - %:,...-, . '. 1190 AUTHORS: KatoobashvIll, Ya. R KkAvk%,4- TITLE: Brief COMMUnICIULAI.0113. Slib'Ll"'I. !'~11 From Alumino-Molybdenic Cal!~':,,01.:! PERIODICAL: Zhurnal prikladnoy khlmli. pp 734-736 (US-9R) ABSTRACT: Alumino-mollybdenic A by Joint preclpitatloi~ anq separate precipitatior, C).` lower valenclea molybdenum, -i Irtc-d, sublimation or phy3lcal 7 at 81000 C or at papid heutLr~,, 38M to 41M prepar,!d by 6atu:-,,j* r-:,~ ammonium molybdate, and similarly prepared from alu-,i1n,jr, At ~ considerable arrount of' r ~ short heating to ab,-,ve ~,191() C. Card 112 caked and completely lcst ~hel r Brief Commun1cations, Sublimation cr Molybdenum Oxide From Alum1no-M~j'.Y,'%1 Catalysts There are 6 reference.2, 1 T, reference Is, A A. Purt-n Progr., 411, 3, .195 SUBMITTED: April 24, 1959 Card 2/2 LEVITSKIY., S. G. and LAVOIKO, P. F. Gallvaniches~de po?:frytiia. detalei :rashin i priborov. Kiev, 1,149. 231 P- illus- Bibliography: p. f2287 Electroplating of rachine parts and apparatus. DI,C: Ts66o.L3 SO: Manufacturinc, and M;echan-cal Enginecrinj,, in the Soviet Union, Library of Congress, .1953- LEVlTSKIY, Sh-; 14, .... -- :7 4,3 Horling witlh synthetLc din-monds- A'.-t- tranjP' f'-1. - "", , 165. ROrrM, Z.j LLFVITSKIY Sh. Improving the quality of repairing, Art.transp. 41 no.4:33-35 (p 163. (MIRA l6t5) lo Glavrqy inshener 1-go Kiyevskogo aytoremontnogo zavoda (for Roytman). 2. Nachallnik tekhnIcheskogo otdola 1-go Kiyevskogo avtoremontnogo zavoda (for Levitakiy). kHotor vehicles-M&intenance and repair) KUMN.. Ya.A., kand.tekhn.nauk; PIDGAYETSKIY, G.Ya. (Pidhaletalkylo H.IAJ, inzh.; IZVIMqY-,-ShA-4-Ia97ts'kyi, Sh.A.), inzh. Machinery mwfaces of connecting rod joints. Yekh. oil'. hosp. 12 no.9:10-32 S 161. (IMU 14:11) (Connecting rods) CHIKALOVI G.P.; ROYTMAN, Z.L.; gVITS Y,, - MITSKEVICH, KI] _$btA,; MUCHNIK, F.E., Z.A.; SHAPIRO, A., otv. za vypusk [Manufacturing motor-vehicle parts of capron)Izgotovlenle detalei avtomobilia iz kaprona. Kiev, Nauchno-issl. in-t mestnoi, i top- livoi promyshl., 1959. 45 p. (MIRA 16:1) (Nylon) (Motor vehicles-Design and construction) LEnTSKIY, 5-1- "WNW* 3' 71 for the Sha-rglln lip- GK2: no-3.65-68 263 I .a - -,:, 112-57-7-15124 Translation from: Referativnyy zhurnal, Elektrotekhnika, 1957, Nr 7, p 190 (USSR~i AUTHOR: Levitakly, S. M. TITLE: Oxide-Coated Cathode Poisoning Due to Oxide-Electrode Film Dissociation Under Electronic Bombardment (Otravleniye oksidnogo katoda za schet dissotsiatsii plenki oksida na elektrodakh pod deyetviyem bombardirovk-. elektronami) PERIODICAL: Nauk zap. Kiivs'k. un-t, 1955, Vol 14, Nr 8, pp 195-197 ABSTRACT: Oxide-coated cathode poisoning of a 6AS7 tube is investigated at 7501K by taking the voltage-current characteristics of the first grid. With a voltage of 6-~ v on the first grid (other electrodes were under 10 v), a drooping current was observed, caused by cathode poisoning due to dissociation of an alkali- earth'element oxides - BaO, SrO and CaO - on the surface of the first gr.,d. Yu. N. B. Card 1/1 4- USSR /Electronics Abs Jour 3 Ref Zhur Fizika, No 4, 1957, 110 9834 Author Levitskiy, S.M. Inst Title t Bleo trode'Evapo ration and Space Potential in HiGh Frequency Discharge, Orig Pub 3Nauk. zap. Kiivsfk. un-ts 1955, 14,9 110 8o 199-207 Abstract iIn order to clarify the physical phenomana. that cau~;e the reinforced evaporation of electrodes in hiGh frequency fields, the author undertook an investigation of the dis- tribution of the -a otential in the space. A measurement of the potential was by means of probes Fit frequencies f rom 3 to 65 Mo. It was established that the potential even at rather high discharge Intensities does not exceed 20 -- 30 volts (pressure abo4e 0,4 mm mercury at 68 go and above, 5 mm mercury at 3 Mo). As the pressure diminishes, Card 1 1/3 USSR / Electronics. Abs Jour i Ref Zhur - Fizika, No 4, 1957, No 9834 If Abstract s the potential increaBes to 300 -- 400 volts (10-2 - 10-3 mercury at 66 Me and AO-1 -_ 10-2 mm mercury at 3 Me), In all these oases the potential of the probe retained posi- tive polarity relative to the ele6trode and increased with increasing high frequency voltage. Conadquently, in a high frequency discharge, there my exist a sufficiently large positive spade p6tential, due to the presence of positive space charge. An attempt is made by solving thd Poisson e- quation to estimate the value of this potential. In the de- rivation of the fozmula he assumes constant concentration of both the ions along the discharge axis, as well as of the basic mass'of electrons located inside the Cap in oscilla- ting state. These assumptions lead to calculation results that are'somewhat high compared with the data of the inves- tigation. It is established experimontally that the intense evaporation of the metal is observed only at hirher qpace '.5 A Card I r.1 Abs Jour s Ref Zhur - Fizika, Ito 4, 1957, Ito 9634 Abstract t potentials up to 200 -- 300 volts. The character of the eva- poration differed from the diffusion type of cathode evapora- tion at do. As a rule, in a high fr4quenoy discharGethe e- vaporation was observed only locally. The comparative inves- tigation of the evaporation at do and high frequency voltages shows thitt in the former case intensity of evaporation was .,/w-hr, and in the second it reached I - 2 md 0A ;.- 0.6 mr w-hr. The application of do fielda'to a high frequency dis- charge increases by a factor of 2 -- 3 the evaporation at the negative electrode, this being attributed to tho.larGe ion energy, obtained as a result of the total i1eld. In the latter case, one observes a conqiderable shift of the glow at the negative electrode and at the same time the difference of potential betwden the probe and the positive electrode re- mained unchanged, Bibliography, 9 titles, Card 1 3,/,s UM/Elactronics Electronic and Ionic Emission 2 Abe Jour : Referat Zhur -,Fizika, No 5, 1957, 12277 Author : Levitskiy, S.M., MAU, A.Ye. Inst Title : Method of Measuring the Total Transverse Resistance of an Oxide Cathode in Certain Commercial Types of Vacuum Tubes. Orig Pub : Tr. N.-i. in-ta. X-vo radiotekhn. yrom-sti SSSR, 1956, vyp. 2-3 (30-31), 60-65 Abstract ; A method is proposed for wasuring the total impedance of the oxide cathode., suitable for pentodes with the third grid brought out. The third grid is used as a probe, vhich captures some of the electron stream from the catho- de to the anode. When measuring the value of the emission current diverted from the cathode, a change takes place in the voltage drop across the resistance of the cathode layer, and consequently, in the difference of potential betvaen the cathode and the third grid. The resistance Card 1/2 Y, V IT, AUTHOR LZVITSKIY B.M. PA - 3549 TITLIS Investigation of High-Fr*quonoy Disoharge Sparking Potential. (Issledovanlys potentsiala sashiganiya vysokoohastotnogo razryada v gas* v porekhodnoy oblasti chastot I dayleniy.- Russian) PIRIODICAL Zhurnal Tekhn. Pis. 19571 Yol 271 Yr. 5, PP 970-977 (U.B.S.R.) ABSTRACT The investigation is carried out in the domain In which elec- tron emission In no longer oonnect4d purely with diffusion, but ocours mainly at the expense of the motion of the electrons in thohigh frequency field. It is shown that these two kinds of sl*otron. emission oorrespond to two different kinds of high frequenay discharge whioh differ oonsldo:eably as to properties. It is shown that in the domain of frequencies and pressures in whiah the amplitude A of the electron osoillations becomes oommensurabl* with the width of the disobarge Interval d the formation of the discharge is actually localized within renge of a width 4-2A. The latter is oall*d the virtual discharge Interval (by the author). This domain fluotuates with field frequenoy and touches alternatingly the right and the left electrode. The calculation of the ignition potential caloulatsd CARD 1/2 on thin basis agrees well with exp*rlmontal data. The jump AUTHMt LIn Ur ' PA - 3554 T--- Pot-eLS;Ial MM -=';EL~NW~and IMectrode Pulverisation in Hlgh4raquavAy Discharge. (Potentsial prostranstva I raspyleniye elektrodorr v vadwohastotacm maryade, Russian) PUIODIGAI4 Zhusma Tsk%n,Fiz. 1957, Vol 27, Nr 59 pp 1001-1009 (U.S.S.R.) ABSTRACTs By measuring with the aid of probes and by mea uring the energy of the Ions emitted from the high-frequenoy discharge it was established that a very high positive space potential usually exists within the high-frequency discharge at a frequency of the order of io 6 _ 10a o and pressures of 10-2 _ 1.0 = torr. This potential is oomensurable with the amplitude of the high-f re- quency voltage an the oooasion of the discharge. This is caused by the excess of positive Ions In the discharge, which is mainly brought. abou* by the conduction of the more mcbile ale otrons to the electrodes through the high-frequenoy field. It follows therefrcm, that the cbserred intense pulverization of electrodes in caused just by this positive space potential, by which the ions an ejeoted from the discharge in the direction towards the electrodes and are accelerated up to high energies. Besides, some 0 ard 1/ 2 AUTHORSs. * Levitskly, S.M., and TITLEs A-Neizt7;`F`a-i~~o? Voltage napr-azheniya) PERIODICAL: Pribory I tekhnika (USSR) SOV/12.0-59-2-43/50 Golo-van', A.N. Markers (Generator motok. eksperJ-mentaj 1959, Nr 2, p 142 ABSTRACTS When the volt-amp characteristics of various instruments are examined in a CRO screen, it Is often convenient to have markers on the voltage axis so that readings along this axis can be easily aeGomplished. The circuit shown in Fig 1 may be used for this purpose. It r.-an preduce voltage markers between 0 and 250 V. The main part of the circuit is a voltage discriminator based on a 6Kh6S tube. The signal at the output of the discriminator is in the form of a trapezoidal pulse. This pulse is amplified by the valve 3, differentiated by an RC circuit and the negative part Is clit off by the diode DG-Ts24. The pulse is clipped by a blacking osc:illator triggered by the tube A i+0 The length of the pulse at the output can be made very short. In the present case Card 1/2 it does not exceed 100 IL. The pulse is applied to the brightness modulator of the CRO through an output A Generator of Voltage Markers SOV/120-59-2-43/50 cathode follower. The marker Is in the form of a bright spot on the oscillogram and appears at the instant when the voltage at the output of the circuit passes through a value close to the voltage taken off the potentiometer n (which is indicated by the voltmeter). Card 2/2 There are 2 figures and 1 Soviet reference. ASSOCIATIONt Kiyevskiy gosudarstvennyy universitet (Kiyev State University) SUBMITTED: October )+j 1958 soviog-4-8-2/35 AUTHORS: and Shashurint I-P- TITLE: Verification of the Applicability of the Probe Methods to the Measurement of the Charge Concentration in a High-frequency Discharge PERIODICAL: Radiotekhnika i elektronika, 1959, Vol 4, Nr 8, pp 1238 - 1243 (USSR) ABSTRACT: The aim of this investigation was the determination of the accuracy of the probe methods of measurement of charge concentrations in high-frequency discharges, by comparing them with the cavity-resonator method which was used as the standard. First, the double-probe method was used to measure the charge concentration in a high- frequency discharge which was excited by a 200 W high- frequency generator at various mercury-vapour pressures. Simultaneously, the charge concentrations were measured by the resonator method. The results are shown in Table 2, where the first column indicates the frequency of the discharge, the third column shown-the electron Cardl/4 concentrations measured by the resonatbr methodidxile V sov/log-4-8-2/35 Verification of the Applicability of the Probe Methods to the Measurement of the Charge Concentration in a High-frequency Discharge the fourth column gives the values of the ion concentration measured by the double-probe method. It is seen that the ion concentrations measured by the probe method are higher than the electron concentrations determined by the resonator method. The discrepancies can be explained by analyzing the equivalent circuit of the double-probe device; this is shown in Figure 1. By investigating this circuit, it was found that the current-voltage character- istic of the double probe is sffected by the parasitic capacitances of the system; the effect is illustrated in Figure 2 for various values of the paradtic capacitance. On the other hand, it is found that for the same electron concentration, the current-voltage characteristics of the double probe in a high-frequency discharge differ from those of direct-current discharge (see Curves 1 and 2 of FIgure 3)- With regard to the single-probe method, it was found that - although the parasitic capacitance has some effect - this is comparatively insignificant since the Card2/1* dynamic impedance of a single probe at high electron currents L'-*~ SOV/109-4-8-2f,35 Verification of the Applicability of the Probe Methods o the Measurement of the Charge Concentration in a High-frequency Discharge is small and is usually two to two-and-a-half orders lower than the dynamic impedance of the ionic portion of the characteristics. The measurement of the electron concentration in the investigated high-frequency discharge was effected by the substitution method, i.e. the high- frequency discharge was replaced by an equivalent direct- current discharge (which produced In the resonator the same frequency shift)* The values of the electron concentrations thus obtained are indicated in Table 3. From thist it is seen that the single-probe method can be applied to the measurement of the charge concentrations in high-frequency plasma. The above investigation was carried out under the assumption that in the high-frequency discharge, as well an in the equivalent direct-current discharge, the electron concentration is radially uniform. The validity of this assumption was verified by means of a special tube which was fitted with a probe which could be displaced radially. Card3/4 At frequencies from 3 - 20 Me/a, it was found that the L/ SOV/109-4-8-2/35 Verification of the Applicability of the Probe Methods to the Measurement of the Charge Concentration in a High-frequency Discharge radial distribution of the charges was essentially constant There ar; 3 figures, 3 tables and 15 references, 6 of which are English, 2 German, 1 French and 6 Soviet, ASSOCIATIONs Kiyevskiy gosudarstvennyy universitet im, T.G. Sheychouko)Kafedra elektroniki (Kiyev State University im. T.G. Shevchenko, Chair of Electronics) SUBMITTEDs March 5, 1959 Card 4/4 30V/ i?4-lli'2X V Q . &ad . AVZMR$s Gramiavokly. I.L.. L% ya"w, . U.. pLv . Siratax. .a. Tr=t All-Oftio. Cowfread- a- Q4- "alt".404 MKMZCALg Rd.L.4akkaMm A -lvkSCoOAk-. 1919. Val 41. Xr 8. wr 1331 - L356 (UXSXI CMU &ad X-at 9QX&l'-kVY_- *Wea Data aa Y-my l 0 UCAAZ Vo me OischArges- A-lbrabcaw-." &."UQVhaV.kar' dealt -Ith the iavom L t s o t0& or the =0"i". radi'a " Lit P..qrg'~L a- ugg= in whamborm with Soadwtims . Jl.A_j9r_"DQv_ at .1. - -jaostjS.t&.. at Us Q.0 &Labaao is a C."A.2 Chmmabora. at &I, - QA Turn air Plae" As rr,,co,s"* PA,9n*CLG IPLQA-. am the Owt.i0ft Or . CoIN04. spot *A Wors"47 Is a L.4-prosamr. Area to.. V JUV of the joursal). goglam -A We. Theery at the Cathode Spot- ! C the -LIX, Armsaulft - aftsitivo C~S~ in a flytrogma vlw4b~gs V%tb stotlen"7 and $%a*. ".do,. Z k ad A.A_-LaULLA - *Curr"% DistrLbulLsa, an sctrod.& In 8teetria Pkloo OtotharSeea. pr.v*rt&" of Q** DAscho,s" AA L.-Vvlt4a. ___CAxa:t/l *Q-"ria.ms at tbo~ vs. or nydrexaa~ to L A. AWL&SA. 4..Aual:;t*4 ."o row~lt. .. the pr*-br*^k4ow% at I.. ".4r.4. U. lrj% ~' -4 A,.A 1-valemalty asa.&L. &.10 J_zjk&qx at Coodhoals,aki. es-.'"449-d .-. lAformatioA the ".0-liko phdaws.se &. too-dischorga PL.004. ._kaaa. 46.1% kth %h. Problem of the astar-imatLea at the astemay of feet to- 1. P.1o. at.sibarg". C~avaaslva S..e.billey or 4 plaame strLm4-. ==-and LO. 34*Cr~- - 'M-ry of a Klab- tomw.tmr. Pleass4 Stna.-X_ The C&C'4b4satisoo was preal4od ever by X.A_ Lap"*v mad do"I-sib hub-tro"o"y ~-u1s. &Ml 4"". rz. tollOol.4 More ~4 re"s ,To. 6%1"t . 'F*rvo4SL*Q at ultr&-hLgh Pra"emor Poles xiihr.~-Sox Cm loom Go*oa.. Cl. ft%*X~k - -laflumme. at %be &.a"&" CandItlosam am 4" "Lat"asee f Itigh-tr-'quesar visehava".. .1. - -Xxv.mALt.cv*ft of a S.It-osslatatmeA G1vr-"gb rreimomy F".. Discharge "4 IN. pressas at its D"01*0ma"S'. I -- SAm4ambear amid Q.S-A.L.4~ - 'Uma Rosmtt. at the %mmaaliasc&ow or %be F.roatl.ft or L.W-pw.emazo slaft. -r-ndustivity at V.^kly lomisod "us C ft4lti." at Tr.ftA&ttoft Tree re" OMb.rS. .4 Atea.ph.n. Prooe- as WA--jeet - 'Tl. IMIMAS."blp the ChArester- L*4&s4%r V" ntro.&Aab Froquomer Crreelt saA %A. DAT":1 Cegroset to a.* Disabarg.0. aa-lys*4 %be Go84me%LWttj of the "~L" !*~~ As, %be .%mdo. at a roo..."s, 44selsra. tabs. ~w 4-1t ~Lth the C-4 v I I V W-C the probe method to 'jo.bee,g- (so. p t2la of ch.. i.ar-sal). Tlk* Pop.. by V. To. 14SA." at .1. ." 4*-9.4 to the laso.sissAis"s at the trww.-Y pl-*" by 'aaaa of the Slark off-&. #a- L!h the pr.111- or .1"Irle Ctoldle ift . .4% fr. easya& charge, -4 Is- Pra*-~o-. j*_Asdac4%L..f r.&A p.p.r -tvtl.A *%I&%- f1r.q.saar OLothars.. A- ?%. oork at %be ."Aft ._tt.a ... 4...q.4 to the re.blawo C VI"- &ad I%& r.41atL.ai the --* ProaA464 :-or by V.4. F.Urtkic.4 The F-Pal. or. V..4. To.". li.j.. - -No A S'Plr.b. Ot.t-A. air pleam% loweaug.timail v I Dread. La V:A: Simon"; wW A.G. *( the X-_% of by f Spoo%rom.t., at (3), 9 (3) AUTHORS: Itevitakiy, S, M., Shashurin, I. P~ S C) 7/4 6 '- 3 TITLE; The Measurement of Concentration of Dischari;es in t" IP the Method of a Iligh-frequene.~y Probe PERIODICAL: Izvestiya Akademii nauk SSSR. Seriya fi-icheskitya . Vol 23, Nr 8, PP 940 - 951 (USSR) ABSTRACT: In the present paper a non-eymmetrical oscillator and i conductor probe are used. The construction of the the hieh-frequency probe, and the excitation system arp d~, scribed by means of figure Is, In the first part, For t).iv. icn symmetrical osGillator the reactive reBistancc~ .a means of formula (i) from which 'the concentr_-_,7~", ~'f charges may then be determined usinv formula (2.1. ment results are summarized in a diagran fF-,(, ?) and with the computed values. Simultaneously, the of the oscillator was investigated. In the se4--,M pa-t paper the bi-conductor probe Is described by faeat s 1b. The concentration of electrona in the p~asra the wave-length is shown in the dia6ram in fiCur;~ Ca~-d 1/1.) zurve was formed by means of the meth,~d d~~5crlted t The Measurement of Conpentration of Discharges in F',a-)ma by the Method of a High-frequen:;y FrUe other Purve was determined by neasuromenfe w3-th a probe. It may be seen that the high-frpquency pr-~,-"~: values of electron concentration. The reaults were obtained with a wave-lenf;th of 2 an3 It 1s, that the same results were obtained -rith a wavt--,1ar,-t1, The authors thank Profeascr N.. Do Mori,-ulia fi)?- !-jis i-J, and for disoussine the results. There art) 3 orences, 3 of which are- Sovrie.. ASSOCIATION: Kiypvckiy goo. universitet.Kafedza e1-:ktr,)rjk, f,Y;:r-. University Chair of Zlectrontf,3) Card 212 85993 S/141/60/003/004/019/019 E032/E314 AUTHOR: Levitskiy, S.M. and Baranchuk, N.S. TITLEi On the Propa&ation of Electromagnetic Waves Along a Rod of Plasma-, 11 PERIODICAL: Izvestiya vyeshikh uchebnykh zavedeniy, Radiofizika, 1960, Vol. 3. No. 4. pp. 725 _ 726 TEXT: Schumann, Faynberg and Gorbatenko (Refs. 1, 2) have shown that slow surface electromagnetic waves can be propagated along a cylindrical plasma rod. In the absence of a magnetic field the propagation of these waves is possible provided w0 >, U) V, + r1n , where w is the frequency of the VHF field, Wo = F.- Z_ 'Is the natural frequency Vq-rye Nfm of the plasma and C D in the dielectric constant of the surrounding medium. The maximun, retardation of the waves occurs for W 0 _= W V 1 + CD since for larger values of W 0/w the phase velocity tends to c . Such slow waves were experimentally observed by Sinellnikov and Zeydlits (Ref-3) Card 1/3 85993 S/141/60/003/004/019/019 E032/E314 On the Propagation of Electromagnetic Waves Along a Rod of Plasma and Bittner (Ref. 4). The present authors report a quantitative comparison between theory and experiment. A long gas discharge tube having an outer diameter of 1.25 cm and an internal diameter of I cm and filled with saturated silver vapour was employed in the experimental part of this work, The cooled part of the envelope was kept at 40 - 60 OC. Measurements were carried out between 2 000 and 3 000 Mc/s. The results obtained on 2 000 Mc/s are shown in Fig. 1. As can be seen from Fig. 1, for low concentrations the curve tends asymptotically to the line marked I , which represents the concentration for which no propagation of the signal can occlur. The line marked 2 corresponds to the concentration determined from the condition W0 = WVIL + ED - i.e. the theoretical limit for the propagation of electromagnetic waves. The dielectric Card 2/3 859FI3 s/141/60/003/CO4/019/019 E032/E314 On the Propagation of Electromagnetic Waves Along a Rod of Plasma constant C D of the glass was specially measured and was found to be 4.2. As ran be seen, the theoretical limiting concentration is in good agreement w.1th the experimentally measured value if 6 D is taken to be equal to the dielectric ,7,onstant of the material surrounding the plasma. There are 1 figure and 4 references: 2 Soviet and 2 German. ASSOCIATIONt Kiyevskiy gosudarstvennyy universitet (Kiyev State University) SUBMITTED: April 29, 1960 Card 3/3 LUITSKIY., S.M., dotsent Review of V.N.Shevehik's book "Fundamental of microwaves.* Izv. vya. ucheb. zav.; radiotekh. 4 no.1:120-121 Ja-F 161. (MIRA 1. Rekomendovano k&fedroy elektroniki Kiyevskogo goeudarstvennogo univeroiteta im. T*G.Shavehenko. (microwaves) (laritskii,. SIMI) 33224 17, 4A 3 6 S/141/61/004/006/011/017 C/, /~ 0 d E192/9382 AUTHORS, Levitskiy, S~M. and Baranchuk, N.S. TITLE, Investigation of the characteristics of a plasma waveguide PERIODICAL~ Izvestiya vysshikh uchebnykh zavedeniy, Radiofizika, v6 4, no. 6, iq6i~ 1078 - 1088 TEXT- The paper was read at the conference of I-IV and SSO SSSR for radio-electronics, Khar,kov, ig6o, The paper gives some experimental and calculated data for a cylindrical plasma waveguide. The experiments were carried out by means of the equipment illustrated in Fig. 1, In this, i represents the generator, B is a wavemeter and A is a fixed attenuator of 10 db,. A i1l is a coaxial measuring line., which is used for determining the matching of the waveguidem The investigated plasma waveguide is in the form of a long, sealed- off gas-discharge tube J1 , which is situated inside a measuring line LA'r12 instead of the centre conductor, The principal unit of the gas-discharge tube is a calibrated glass tube having Card III 3322h s/i4i/Woo4/oWon/017 Investigation of E192/E382 an internal diameter of 10 mm and external diameter of 12 5 mm The tube is terminated with an anode having the form of a short cylinder made of Kovar, A DC discharge between the anode and a heated cathode is ignited and the electron concentration in that portion of the tube which is outside the measuring line can be measured by a cylindrical probe LJ-3 and a flat surface probe na, a The tube can be filled wither with mercury vapour or with hydrogen. Excitation of the tube can be effected by connecting its anode to the coaxial supply cable through the excitation system Gf~ This system can be in the form of a delta - transformer, which connects the anode directly to the central conductor of the coaxial cabled A cylindrical plasma waveguide with an axially symmetrical wave of TM-type is analyzed on the basis of equations derived in Ref~ .1 (WIO Schumann - Z,f. Naturforsch., 5a, 181, 1950) and an expression for its delay factor 0 is given. The factor was also measured experimentplly at a frequency of 670 Mc/s and the results are shown in Fig. 4. where 0 is plotted as a function of the electron concentration ne (measured In the vicinity of the tube wall; Curve .1 in the Card 24r q 33 P21i s/14i/61/oo4/oo6/oil/017 Investigation of E192/E382 figure is calculated under the assumption that the permittivity of the dielectric is cA~ 4.2; Curve 2 is for e-mlfor a tube with a screen, while Curve 3 is for c '4tj' = Iwithout the screen; Curve 4 was taken experimentally The expression for the attenuation of the plasma waveguide is also derived and some experimental results are given. Some of these are shown in Fig. 6, where the attenuation coefficient a" is plotted as a function of frequency (for 0 = 6.5 and a mercury-vapour pressure of 3.27 x 10-2 mm Hg)i The wave impedance of the waveguide is also evaluated by employing the method of Ref 13 (J H-Pierce Travelling-wave tubes, pubd Sov. Radio, Moscow 1952) Some measured and calculated results of the wave impedanLe as a function of the electron concentration for tiic frequency of 670 Mc/s are given and it is found that the measured and experi- mental data are in qualitative agreement. By comparing the experimental and calculated results it is concluded that the permittIvity of the wall material of the cylindrical plasma waveguide, which is in close contact with the plasma. is uf great Card 3/,F V _' ; 3 2`4 s/14i/6i/oo4/oo6/oji/oi7 Investigation of E192/E382 importance and that an accurate analysis of the waveguide should be based on formulae which'take into account the irregularities of the dielectric surrounding the plasma The attenuation in t he waveguide is proportional to the gas pressure and increases with increasing frequency. Similarly, the wave impedance increases with frequency and becomes infinite at the critical frequency There are 8 figures and Ili references 11 Soviet-bloc and 3 non-Soviet-bloc. The English-language reference mentioned is: Ref, 5 - kW Trivelpice, RW Gould - J. Appl Phys , 30 1784, 1959. ASSOCIATION, Kiyevskiy gosudarstvennyy universitet (Kiyev State University) SUBMITTED- February 6, 1961 Card 4/0 ~ Mu f'31S-d OOY9 XJ 2; 2 0 X) S/12o/61/ooo/002/027/042 E032/E114 AUTHORSs Levitakiy, S.M., and Plyatook, Z.A. TITLEs An osaillographic method for measuring the plasma parameters of a gas discharge PERIODICA,Lt Pribory i tokhnik& ekap*riment&, 1961 A No.2, pp.150-152 TEXTs A description in given of & simple device for measuring the plasma parameters of a gas discharge. The device is said to be much aiinpl*r than those described by other workers (A.M. Bonch-Bruyevich, Rof.11 B.A. Mamyrin, Rof.2; P. Johnson, Ref-3; V.I. Drozdov, Ref.4). The basic circuit is shown in Fig.l. The current in the probe circuit in produced by the battery E; and the oscillator F . The electron current from the probe peones through the diode 1. The voltage drop across this diode depends linearly on the logarithm of the current. In the case of the diodes ar- U, 21 (DG-TO 21)~Ar- Lj 24 (DG-Ts 24) and ar-LL 27 (DG-Ts 27) this line& dependence is found to occur between 0.1 and 100 me. However, the slope of the straight line may differ from diode to diode and must. be determined in a preliminary experiment. The temperature of the diode has an Card l/ 4 S/120/61/000/002/027/042 An oscillographic method for ..... E032/Ell4 important effect and must be kept constant. The diode 2 in used to pass the probe ion current whenever it appears. The voltage drop across the diode I is applied to the Y-plates of the CRO amplifiers while the oscillator signal is applied to the X-plates. As a result, the volt-ampere characteristic of the probe is obtained on the screen on a semilogarithmic scale. A typical result is shown in Fig.2. The electron temperature can easily be found from the slope of the left-hand part of the curve. The charge concentration can be found by replacing the diode by the ohmic resistor. The above method has been checked with a DC discharge in mercury vapour. The oscillator r produced sinusoidal vibrations and the experiments were carried out between 30 and 300 cps. The plasma parameters were determined both by the oncillographic and the "usual" method. The table shows a comparison between the methods. There are 2 figures, I table and 6 referencest 5 Soviet and I English. ASSOCIATIONs Kiyevskiy gosudarstvennyy univorsitot Card 2/4 (Kiyev State University) SUBMITTED: May 26 196o 8/057J61/031/004/007/018 'A 3125/3205 AUTHORS1 Lovitakir, 8 Sham uring Is P. TITLZo Method of the resonance suporhigh-frequency probe used to measure the concentration of charges in a plaoss, PERIODICALs Zhurnal tokhnioh4okoy f1sikil To 31# no* 4, 1961t 436-444 TZXTj A systematic investigation has b4on made of the nods of operation of a suporhiSh-froquency probe In the stationary plasma of a gas discharge. Besides, its possible use in an instationary plasaa in the prolonoe of a aagnstic field has been *hooked, The sothod of the superhigh-frequenoy probe has the following advantages over the mathod of the hollow resonatort & certain complication of the design of the tube due to $he introduction of the h-f probe into its volumel b) 4 disturbance of the plasma by the probe@ Howoverp these shortcomings are exhibited by almost all probe methods. The design of the tubes used for measurement is schematically shown in fig, 1. those are ps-disobarge tubes with heated oxide cathodes. Ordinary cylindrical probes were plaeod into the disohargo tubes for control measurements and other purposes. The second part of the Card 1/10 HJU 8/05 61/051/004/007/Olil method Of the rosonan4o... B125Y3205 present paper deals with the ocurOss Of error in measuring *lsotron concentrations by the method of the sup*rhigh-froquency probe. One of these error sources is the determination of the proper length of the superhigh-frequenoy system. 1 0 can be determined by a direct measurement of the geometric length of the line (;ko a 21/1) and also by measuring its resonance frequency in the abs*nos of plasma. The authors used both methods and obtained the seal results within the limits of error. The concentration measured by a superhigh-frequenoy probe can be 10-20% lower than the sotual charge concentration in the surrounding plasma. The experimental verification of the method of the suporbigh-frequonoy probe was carried out chiefly in the plasma of a d-c discharge. Pig. 4 shows the relevant results of measurements in the 3-ca range. The electron concentration Is plotted on the coordinate. The straight line shown in Fiat 4 was drawn according to the oquation 2 -L- no (4) and represents the electron concentration at which 2 Sao 41 resonance is bound to occur if the line is excited by a wave of wavelength Card 2/ 10 091a 8/057/61/031/004/007/018 Method of the resonanoo.as B125/3205 1. The points illustrate the electron concentration measured by the method of the ordinary probe, at which resonance occurred at a given wave- length. The average deviation in concentration measurements amounts to 5%. Measurements in the range of decimeter waves showed good agreement. The electron concentrations measured by the method of the superhigh- frequency probe are 25-35% lower than those measured by the method of the ordinary probe. The resonano* of the line may occur not only at 1-1 but at any integral value of N. The resonances corresponding to N - 3,4,5 could be actually observed when changing the strength of the discharge current. The method of the hollow resonator has particular advantages over the ordinary probe method. Those advantages are also exhibited by the method of the resonant suporhigh-frequenoy probe which is described here. Measurements in instationary plasma were limited essentially to the followingi In the came of time-dop*ndent plasma int&naity,. the charge oonoontration at a certain instant of time will reach a value at which resonance occurs for the suporhigh-frequenoy systems Figs. 5 and 6 illustrate measurements in a quasi-stationary and a disintegrating plasma# respectively. In this oaseq current pulses of a duration of 6 could attain 300 at The minimum is indicated by an arrow. Th;aylallueos Card 3/10 22AI 8/057/61/031/004/007/018 Method of the resonance..* B125/B205 measured at different wavelengths wore used to determine the time con- stant of plasma dsionixotiont and were found to be in good agreement with data of V, L, Oranovskiy. The last part of the present paper deals with measuremeAts. in planse, with constant flow in a longitudinal magnetic 2 2 2 fieldt In the 3-om ranget the formulas p_ a I - s nex /Xmc (1) and (4) can be applied up to magnetic field strengths of iv WOO os, The resonance of the system becomes less distinct with an increase in the magnetic field strongthp but is still very marked at field strengths of ,v 1000 os. When the magnetic field strength in increased to 700 on and the charge concentration in kept oonstantp the electron current impinging on the probe is lowered by more than one order of magnitude, whereas the ion current changes by no more than 40%. The charge concentrations determined from the strength of the ion current are compiled in the attached tabl*. There are 7 figures, I table, and 10 reforenc*si 8 Soviet-bloc and 2 van-Soviet-bloo, The two references to English language publications read as followst M. Biondi, Rov.Soi.Instr., 22, 500# 1951; A. Guthrie, R. K. Wakerling. The charaot*riation of electrical discharges in magnetic fields. No Grow Hill, N.Y. 1949. Card 4/10 21541 8/057/61/031/004/007/018 Method of the resonance... B125/B205 ASSOCIATIONt Kiyevskiy gosudarstvennyy universitet Im. T. 0. Sheychenko (Kiyev State University imeni T. 0. Shevehenko) SUBMITTEDa March 39 1960 Card 5/10 '~4037 S/109/62/007/001/016/027 D230/D301 0 (/00'3., //*0/ RD AUTHORS: Levit8kiy, S.M., and Gvozdetskiy, V-3,, TITLE: The influence of the constant electric field on the start of pulsed microwave discharge in a gas PERIODICA1: Radlotekhnika i elektronika, v. 7, no. 1, 1962, 133 - 141 TEXT: This is an examination of the effect of a constant electric field on the start of pulsed microwave discharge as a function of pressure and kind of gas, pulse repetition rate (p.r.r.) polarity and amplitude of the constant potential. Two distinct cases are considered: a) The effect of d.c. voltage on the start of the ir tial breakdown, b) the effect of d.c. voltage on the existence jf self-sustained oscillations. Measurements carried out in air at pressures of 10 - 150 mm Hg and 800 p.r.r. showed that the d.c. field had little influence on the breakdown or time of the statis- tical lag. At low pressures below 10 mm Hg, when the striking time was sufficiently longp the effect of the d.c. voltage was analo- Card 1/3 Am S/109/62/007/001/016/027 The influence of the constant D230/D301 gous to that of incident c.w. power; at the time of discharge for- mation the field draws the electrons to the electrodes increasing the losses of the electrons and increasing the power required for initiation of the discharge. Tabulated results of the Influence oi d.c. voltage on the existence of self-sustained (simmering) dis- charge show that in the presence of the field the stability increa- ses as the power increases. The effect of varying the p.r.r. on the microwave discharge is shown in two families of curves with and without applied d.c. field. In the case without field and low p.r. r.'s the discharge requires a more intense microwave field and for the following pulse are the same as for a single pulse. In the case with a d.c. field and different p.r.r.'s the curves do not differ much from each other. The action of the d.c. field in the interpulse period is to accelerate the deionization of the dischar- ge gap and lower the concentration of the free eleotrons at the start of the following pulse; furthermore, application of the d.c, field removes the simmering discharge and reduces it to the case of breakdown at individual pulses. At pressures higher than 10 mm Hg the application of the d.c. field cannot prevent the occurence of Card 2/3 34h97 3/109/62/007/002/022/024 D256/D303 A.~ THWS: Morgulis, N.D., LevJtakJJ6 40-Y#, and Groshev, I.N. TITLE: Current oscillations in the system of a thermo-electro- nic energy converter with cesium vapor PERIODICAL: Radiotekhnika i elektronikat v. 7, no. 2, 1962v 352 - 353 TEXT: The eiperimental cesium-vapor tube contained a Tatape catho- de and a similar anode covered with a layer of cesium and provided with additional screening electrodes, the distance between the ano- de and the cathode being adjustable. The following parameters were varied during the investigation: The temperature of the cathode Tk9 the saturatiun temperature of the cesium vapor t and the distance between the electrodes d. It was found that for a given d there are two discrete regions where oscillations exist, these are shown on a t - Tk diagram. In the low Tk regiona the oscillationo are a1dant purely sinusoidal with a frequency ranging from 20 to 160 kc!;/nur CardQZ2 S/10 62/007/002/022/024 Current oscillations in the D256YD303 In the second region of oscillations with higher Tk the oscillatiar were non-sinusoidal and their frequency was in the range of 1000 kcs/sec, the output power of the oscillations at this region being appreciable. The output power was investigated for both ase. and d.c. as a function of the load resistance with the remaining para- meters fixed at the following values: Tk = 24500K; t = 1200C; d = 1 mm, and 3.6 and O~-,9 %7att/cm2 maximum values of the output power were observed for d.c. and a.c. respectively, the corresponding vol- tages being 1*9 and 0.9 V. The respective efficiency of the conver- ter for d.c. and asc. was estimated to be ii > 5 %t N27~-_' %. There are 3 figures and 4 references: 2 Soviet-bloc and 2 non-Soviet-bloc. The references to the English-language publications read as follows: R. Fox and V. Gust, Bul. Amer. Phys. Soc., 1960, 5, 80; Electronics 1960, 33, 5t 78. ASSOCIATIONt Kiyevakiy gosudaretvennyy universitet im. T.G. Shev- chenko (Kiyev State University im. T.G. Shevclenko) SUBMITTED: July 3, 1961 Card 2/2 IZVITSKIY,-SJl.:; BARANCIWK, U.S. Studying the properties of a cyllndric plame, vaye guide. Izv,vya, ucheb, savo;radiofiz. 4 no.61l(77F-1088 161, (HIPA 14:12) 1. Kiyevskiy gosudar t universitot, (Waves =do (Plaoma(lonized gases)) 1EVITUR, GVOZUTSHY, V.S. Effect of a constant electric on Ve initiation of an impulse ricrowave discharge in a gas. iladiotekh. i elektron. 7 no-1:1)3- 141 Ja 16-1. (MIRA 1j:1) 1. kiyevskly posudarstvannyy universitet im. T.G.Shevchenko. (Electric discharges) (Microwaves) S. H-CLev3rtalkyl, S. M.] PUvmp the fourth state of aggregation. Des. such. fiz. no.6: 34-55 '62- (MHU 16: 1) (Plasm(Ionized gases)) __],MTSKrY S. M.; BARANCRUK, R. S. Study of some propefties of a delay s"tem consisting of a helical guide surrounding a plasmA rod. Isv. vys. ucheb. say.; radlofis. 5 no.5:9W-977 162. (MIRA 15:10) 1. Kiyovskiy gosudaretvennyy universitet. (Plasma(lonized gases)) (Ways guides) 979 -9 May OSCILLATIONS HN' A CESIU.M-VAPOR DIODE (USSR) and I. N. Groshev. Radiotekhnika i elektronika, v. 8, no. 4, Apr 1063, 612-618. S/109/63/008/004/009/030 Plale-current oscillations in a diode filled with cesium vapor were Investigated by rneans of an experimental tube operated at various values of vapor pressure, cathode heating., and anode voltage. The cathode was a thin, 1-mm wide tantalum strip, while the anode was formed by tantalum plates placed on both sides of the Strip, which could be simultaneously adjusted either closer or farther apart, thus changing the distance from plate to cathode from 0. 7 to 10 mm. The tube v;as placed in a thermostat whose temperature could be regulated from 20 to 300*C. Either a resistance directly connected in the plate current, or one coupled to it through an h-If transformer, served as the load. Results of the investigations confirm the existence of two modes.of oscillation: -mode I corresponds to high prQssure and low cathode tempprature, and mode II corresponds to low pressure and high cathode teml)erature. Mode I oscillations are of low intensity and have a Ca::d 1/2 OS,~.T!,UkTIONS (Coat'd) S/109/63/008/004/009/030 frequency of the order of 1 to 20 kc and a wavcform close to sinusoidal. In mode 11, the mode principally discussed, oscillations are very intense, have a frccuency of the order of 100 to 1000 kc, and may have a waveform quite different irom the sinusoidal. In mode 11 oscillation the amplitude decreases with a drop in cathode temperature and ceases abruptly at a critical lower boundary t4 mpera- At a cathode temperature of about 2000*K, the oscillation frequency varies zt-, fii'st only slightly, but on approaching the lower boundary it suddRnly-xncrea~s~_~. 101d. :.1oreover, mode II oscillatior4--,.-.1-ensiTY-db7-cr-e "ss as anode vol- a1most vxo~ 1~4~rc .,Z; ;'Cc uce('~ 'o zero_zwd_Ahen--to--nega1~ive values, and disappears at some cri- an -_ tial, ations disappear also at excessive positive poten- -,~g , Ve potenl Oscill. Th-s pozitive potential limit was found to.Vary directly with the cathode- anode spac-7mr, and also directly with increased cathode temperature. From the ana.ysis of test rusults it is concluded that the oscillatory condition is linked to the, bunching action of gas ions in the interelectrode space. Measurements with an 0. n Probe support this view. [DW Card 2/2 AID Nr. 974-17 22 X&y PASSAGE OF A SIGNAL BETWEEN TWO HIGH-FREQUENCY PROBES IN- SERTED IN PLASMA (USSR) Levitskiy, S.-M,, and J. P. Shashurin. Zhurnal tekhnicheskoy fiziki, v. 33, no. 4, 1963, 429-436. S/057/63/033/004/011/021 The equipment for measuring electron concentration in plasma by passing an sbf signal through the plasma, consisted of an shf generator. 10-db fixed at- tenuator, transmitting probe, receiving probe, second 10-db adjustable at- tenuator, and the receiver. A wavemeter was coupled to the generator. Measurements were carried out in the frequency range from 300 to 2000 Mc. Plasma was produced In a mercury vapor discharge tube. In order to control vapor pressure, temperature of 20*C was maintained by a thermostat. The working section of the tube was 40 to 50 mm in diameter and 250 mm long, so that a sufficient distance could be kept between the probes and tube electrodes. Car& 1/3 AID Nr. 974-17 22 my PASWIC Of A BMNQ (Cout'd) S/05V63/033/004/on/021 The following method of investigation was used: 1) 7be electron concentration near the probes was measured by means of the Langmuir probes placed close by #he shf probes. 2) The relationship between signal Intensity and discharge current was determined at a given generator frequency. 3) Intensity of passing signals was measured by the compensation method. Signal intensity was ob- tained in db -in relation to the intensity existing in absence of plasma. and the electron concentration was found by using a nondimensional value proportional to concentration: W P a 0 fte n =W -M-W- 7 where wo is natural plasma frequency, w is signal frequency, and no to elec- tron concentration. Minima of the passing signals, which were regularly ob- served at p a 1, could be identified as plasma parallel resonance under con- dition w W. In contrast, signal maxima did not correspond to any one 0 definite v:1ue of the parameter p, and could appear (depending on actual con- ditions such as probe design and signal freqiiency) at I~bK values between 2 and 7. Card 2/3 A AID Ur. 974- 17 22 May PASSAGE OF A-SMRAL (Cont'd) 9/057/63/033/004/011/02-' The origin of the maximum can be explained by the resonance of a series cir- cuit consisting of plasma and the Internal capacity of the probe system. It was concluded that plasma resonance corresponds to the minimum of the passing shf signal. The observed maxima appear due to the presence of space charge layers near the probe surfaces or the excitation of waves in a plasma wave- guide. An attempt to detect plasma wave excitation near the transmitting probe gave negative results. JKM "rd 3/3 . IM yu .:,.I fin f- f j;! e t roni "Lo'-r. !y. ;'r, e Ie, iA r n i k9 Hov, Uf 7F A ACCESSION NAS AP4009985 9/01091641009100110132/0137 AUTHOR: Levitskiy, S. U.1 Groshev, L N. TITLE: Oscillatory phenomena in cesiurn-vapor-filled diodes SOURCE: RadlotakhaikA I slaktronika, v. 9, no. It 1964, 132-137 TOPIC TAGS: cesium diode, cesium vapor filled diode, cesium tube oscillator. cesium tube oscillator phenomena, frequency pulling, frequency locking, diode synchronization ABSTRACT: An experimental study of frequency pglling, locking, parallel operation, and maximum power of oscUlations set up in a cesium-vapor -fined diode is reported. The frequency pulling was measured at 200-300 kc and 2,30OX temperat-ire of the cathode, with the d!ode operating under intermittent (50 cps) gener.&tion conditions. A OSS-6 oscillator was used as a source of oscillations in the locking experiments., the locking range was observed as wide as 20fe. Card 1/2 ACCESSION NR: AP4009985 Parallel operation and synchronization were investigated in a scheme comprising two identical cesium diodes; frequency va. coupling and total output power vs. load resistance curves are reporied. A-c power and the efficiency of thermal- to-electric energy conversion constitute only a part of the d-c values which could have been obtained Irom the same diode under nonoscillatory conditions. "In conclusion. we wish to thank N. D. Morgulis for his constant interest in the work. his valuable advice and suggestions." Orig. art. has: 6 figures and I formula. ASSOCIATION: none SUBMITTED: IlDec62 SUB CODE: GE. Card Z/2 DATE ACQ: 1OFeb64 NO REF SOV: 005 ENCI..* 00 OTHER: 006 .ACCESSION NR: AP4043677 5/0109/64/009./008/1433/1439 AUTHOR: Morgulis P N. D.; Levitskiy, S. M.; Panichevskiy, V. A. TITLE; Determination of parameters of gas-discharge cesium plasma by the superhigh-frequency method SOURCE: Radiotekhnika I elaktronika, v. 9, no. 8, 1964, 1433-1439 iTOPIC TAGS: plasma, plasma gas collision., plasma measurement, cesium plasma, gas discharge plasma ABSTRACT: An experimental investigation of the ele ctron- collision frequency and rate of decay of a weak ionized cesium plasma by the SHF-resonator method at 3-cm wavelength in reported. Charge concentrations within 10 11-1012 crri-8 and cesium vapor pressures within 0. 0 1 -0. Z torr were used. By measuring the Q-factor of a cesium -plag ma -filled resonator at various pressures, the collision frequency at I torr was found to be 3x 109 per sec and the effective cross-section Card 1/2 yo ACCESSION NR- AP4043677 of the scattering of electrons by plasma atoms, 0. 4 x 10-14 cm Also. the coefficient of bipolar diffusion (10-20 cms/sec) was determined. This data is compared with results published by'other researchers and discussed, Orig, art, has: 6 figures and 5 formulas. ASSOCIATION., Klyevskiy gosudarstvanny*y univeisitet (Kiev State Un&ersity) SUBMITTED: isjun63 ENCL: 00 SUB CODE: ME NO REF SOV: 008 OTHER: 008 Card Z/2 ACCESSION XR: ;P4042921 S/0057/64/034/OOS/1374/1379 AMOR: KArplyuk, K.S.; Lovitakly, SJL TITIZ: The dispersion equation for an electron beam in a plasma In the presonce'of a magnetic field SOURMS Zhurnal tokhnichoskoy fisiki, v.34, no.8, 1964, 1374-1379 TOPIC TAGS: plasma, magnetic field plasma affect, electron beam, dispersion relatioa ABSTRACT: The dielectric tensor in derived for a plasma traversed in the direction' of a uniform applied magnetic field by a monoonorget1c beam of electrons, and from this the dispersion equation is obtained for waves propagating parallel to the axis of a cylinder of conducting material and circular cross section which encloses such' a system. The derivation Is based on the linearized hydrodynamic equations for the j motion of the plasma electrons and the beam electrons in the applied.field and the field generated by their motion. The transverse motions of both the boaM And the plasma electrons, an wall as the collisions of the plasma electrons with ions and atoms, are taken into account. Collisions of the bean electrons, however, and the motions at the-ions, are paglectedp and the alectron temperature of the pluma in 1/3 AcassioN Nits AP404292;, assumed to be "ro. The dispersion equation obtained for wav" propagating parallel to the axis of a conducting cylindor enclosing i plasma and a3~ axial electron beam and located in an axial magnetic field is rathei involved. ItAs simplified for the. special case of waves with,phaso velocity much less than the yAlocity of light. ,This dispersion equation y"Ids several proviouqly obtained results as special can- es: in the absence of the e,lectron bean it reduges to the dis~ersi.on relation for ~a plasma %raveguide (A.W.Trivelplace and A.W.Gould,J.Appl.Phystt3O,L784,1959); in the iabsence of the plasma it becomes the dispersion equation for an electron beam In a -metal tube in the presence of a magnetic field (A.H.W.Deck, Space Charge Waves and ~ Slow Electromagnetic Waves, Pergamon Pross,1958); and as the radius of the cylinder :increamej without limit It approaches the dispersion equation for a cold unbounded plasma in a uniform majpwtio field traversed by a 'uniform beam of electrons paral- .1al to the field OD.Boha and Z.Gross, Phys.Rov.75,1851,1949; 75,1864,1949; 79,V2. ,1950; A.I.Akhtyeser and Ya.B.Faynberg,ZhETY 21,P62,1951). A future paper ii ro- aimed in which the consequences of the dispersion equation will be discussed. Orig. art -has t 38 fornulam. 2/3 Use ct a meteor trnil jrndel in S~udylng the lnteraf:41l,.,n radin waves. Genfiz. I astron. no.8019-34 161,. ( 1. Klytwrtkly ponudarstvnnnyy univnrsl~pt. M-0 ~ , r", '.-,r 16; L rd.- I -~- I ~ . ~ "N".- :~ -- Ey LUTV , um Q IP I"? K hr, I C hc, -i f* k i i~c I I P)_I I --OPT -mtnhIIitT.--PAactron beam, 1 r. f."! rf, -j", I 'a t ?I F.(~ 'j, ~k~, grarded an unsatinfactory because Ifortsm assumed ttiat the plasma tons could de- w h . ro fk n T i1 a t~ v_a ri i I'fu _q I on i _q 3-mb i no I a rn axi-il on 13 r-"fj anO Tiec,11-1,1163 rie er~T~Iryeii Lne (11fTU31on Callatic-m aL 4 WX NR~ AY5018293 ().02 min Hg, and subsequently incmased as thF3 rquare of the presaurv. The was roughly qu-ntitative for tm electron '(~rrpi,ratur- of 2~) 71, -easin, the magnetic field or the elertmon bean cur-rent lc~,i t- ingt-thility an ty the ap;c-ar, -4- r y C,( Card J, ~ 1-0 1 e 9 1 __xx~ n" A-cc NR, a5028299 SOURCE CON;: -'-OB/3133/65/000/006/OOC'9/OOj4 ALIVIOR: bevitskly, G. M. Karplyuk, K. 3. ORG: Kiev State University (Kiyevskiy gosudnrotvennyy univ'ezoitat) ._iL_Card TITLE: Investigation of the Interaction of radio waves with a model of a meteor trail SOURCE: AN Ukr-SSR. Methduvedomstvennyy geofizicheskly komitet. Informatalonnyy byulleten'. no. 8. 1965. Geofizika I astronomiya (Geophysice and astronomy), 29-34 TOPIC TAW: radar meteor- obeervation, M1111kor tral I , ejectromaepetic interaction I il 1-5 . 155 ABSTRACT: The interaction of radio waves with meteor-trail models of perpendicular and parallel polarization was studied experimentally. Measurements were conducted at '3000 Mc using a long gas-discharge tube filled with saturated mercury vapors as the model. In the case of parallel polarization, it was found that a marked reflec- tion began when the reflecting diameter of the plasma column was 10-20% of the wavelength. In the case of perpendicular polarization, a series of reflection maxima corresponding to various -electron concentrations was detected. The existence of these reflection maxima is explained by the theories of N. Herlofson, T. B. Kaiser, and R. L. Close. The solution of the problem of electromagnetic-wave interaction vitb meteor trails is considered essential for determining astronomical parawters of meteors from radiometric measurements. Orig. art. has: 2 figures and 2 tables. (JR) SUB CODE: 03 17/ 8 M DATE: none/ ORIG REF: 0021 OTH REF: 0091 ATD 7'~r -.7 7;-;p L 5091-66 ErWT(1)/EWw)_2/ZWA(m)-2 IJP(c) Ar .ACCESSIONNR: AP50ZO124 UR/0109/65/010/008/1467/1471 621.385.032.z69.1 JAUTHOR: Baranchuk, N. S.; kevitskiy, S. M. TITLE: Effect of the ion space charge on the operation of an electron gun in ga's ISOURCE: Radiotekhnika i elektronika, v. 10, no. 8. 1965, 1467-1471 'TOPIC TAGS: electron gun ABSTRACT., The results are reported of an experimental investigation of the toperation of an electron gun at 0.0001-0. 1 torr with beam currents up to a few dozen ma. A cylindrical 2. B-mm diameter cathode was coated with an oxide ';Paste. The cathode -first-anode distance was I mm; the same distance between the first anode and the second anode. Beam electron energy, 0. 5 -1. 5 kev; ':hydrogen atmosphere. Gun-collector distance, 30-40 cm. It was found that the 'ion space charge formed Inside the gun (near the first anode) enhanced Its focusing capability and caused overfocusing. To counteract the influence of the ion space Card 1/2 L 5091-66 :ACCESSION NR; AP50ZO124 j charge on the electron-optical characteristics of the gun, prevention of the !appearance and accumulation of ions Inside the gun is recommended. Shorter I i interelectrode spacings and shorter length of the entire gun are regarded as the best remedy. Orig. art. has'. 2 figures. iASSOCIATION: Kiyevskiy gosudarstvennyy universitat jSUBIMITTED: 04May64 ENCL: 00 SUB CODE: EC 'NO REF SOY-. 004 OTHER: 000 Card z 1 '6 5ri(1.1 J Y(C T i Af6f. 14Ks AP6028607 SOURCE CODE: UR/0057/66/036/008/1364/i:J-71 ,AUTHOR: Levitakly, S.M,; Shashurin, I,P, ~ORG: Kiev State University Is* TvG*Shovehanko (K yovskly gosuderstyennyy unlys,rsat) ;'TITLE: Perturbation of a boom plasma by the fields of the oscillations that arise ;in it ISOURCE: Zhurnal tokhnichookoy fIzIkI, v. 36, no. So 1966, 1364-1371 I I , 'TOPIC TAGS; hydrogen pleams,olectron beenj electron temperature, plasma oncIllationj I i 1plasma stability# plasma boom interaction i I ABSTRAM, The authors have continped their earlier Investigation (ZhTF, 35, Xo*7, i1905) of the plasmas produced by ionization of the residual gas in a low-vacuum 1chomber by an electron boom ("boom plasmas ")#%/'The present experiments, using the ;apparatus described In the earlier paper, were undertaken In an effort to elucidate ii3ome of the complex phenomena previously noted by the authors and others in conn ction with the oscillations that arise in beam plasmas. In the present experiments th: besaj plasmas were produced In a more then 18 cm long, I cm diameter glass tube cont:ining hydrogen at from 10-4 to 10-1 mia lig by an up to 25 M bean of 0.5 to 1.5 keV a ectronst- 1 fin the presence of an up to 500 Oe longitudinal magnetic field. The electron densi- Ities In the plasmas were determined from the shift In the resonant frequency of a jeavity resonator enclosing part of the discharge tube, and the intensity of the plasmaj-_ oscillations was observed by recording the strength of the signals In the 350 to 750 Card 4/2 UDC: 533.9 REP 00,1 L 1,592~-66 EtN (1) JJEb_L_ _AkT_ - ------ ACC NRI AP6028614 SOURCE CODE: UR/16a-i/Iii-/-Cd-6/008/1402/14"08- vi 'AUTHOR: X Nose# _Lukj ~ORQ: Kiev State UniverNiq _L*A.T,G,Shevchenko (Kiyevskiy gosudarstvannyy unlverattet)l TITLE: Interaction of a bounded electron beam Ith a iia", - -_ Y pl~apmn to the presence of a ~Magnetic 11, SOURCHt Zhurnal tekhalcioikoy fizlki, ve 36, no*St 1966s 1402-1408 TOPIC TAGSI plesms ws~-jrjide, plasma beam Interaction, electron beam# plasma oscillation, plasma magnetic field, mathematic physics, dispersion equation !ABT=Cr: The authors discuss In the hydrodynamic approximation with neglect of the thermal motions the oscillations of a plasma filament in a longitudinal magnetic fiald~ through which there passes an electron beam. The boundary conditions at the plasma -, dielectrIc boundary arc derived and the calculations are carried through to the-point i qwhare the dispersion equation can be written for any particular cylindrical systemo ,The dispersion equation for slow waves is derived for the case of a metallic tube juniformly filled with the plasma and the electron beam, and analytic expressions are robtained for all six of its roots for the limiting case of a low Intenilty electron !beam@ Solutions of the dispersion equation for the case of a more intense electron !beam were obtained with the aid of a computer, and theset as well as the analytic solutions, are discussed, Regions aro found In whieb wave amplification occurs. These regions are delineated and the dependence of the gain on the type of oscillation is ardl/2 UDC: 5334,9 ACC NR: AP6028014 idleausseds In the case of certaJn nonaxleymmetrJc oncillatlons, the equatlons indicatel Ithat the gain Is greater for the highor ordor oscillations then for the lower order i lones; this unusual behavior may actually not occur, however# because of the increase I ;with frequency of the plasma wavegulds attenuation, which was not taken Into account jin the calculations. Orige art* hazi 22 formulas and I figure, SUB CODE: 20 SUBM DATE: 1OJun64 ORIG. REri 008 OTH RXFs 007 rr~ T L -Acc N" AR6022457 SOURCE CODE: UR/0169/66/000/003/AO13/AO14 AUTHOR: LevijgkLyA.X,- KaEplyuk,__K. S. TITLE: Investigation of radiowave interaction with the model of a meteor trail SOURCE: Ref. zh. Geoftz, Abs. 3A57 REF SOURCE: Geofiz. I astron. Inform. byul., no. 8, 1905, 29-34 TOPIC TAGS: radiowave interaction, model theory, meteor trail, gas discharge, electron polarization, electron concentration, discharge tube ABSTRACT: The Interaction of radiowaves with a model of a meteor trail with perpendicular and parallel polarization has been studied. A long gas-discharge tube was used for a model and the measurements were carried out at a frequency of 3000 Me. In the case of waves with parallel polarization, the obtained values of the effective reflecting diameter agreed with the Gerlofson theory. In the case of perpendicular polarization, a resonance reflection was observed. However, contrary to the prediction of Gerlofson's theory, the main resonance peak was accompanied by a series of peaks of lower intensity with lower values of VjCgjr2jL_ ~0 UDC; 523,53 .__tL2 - " "K' AR6022457 cone entration!2Experim ental disagreements with the theory are attributed to the approximate nature of the theoretical calculations. [Translation of abstract) SUB CODE: 03/ kh Card 2/2