SCIENTIFIC ABSTRACT LEKSIN, G.A. - LEKTORSKIY, D.N.

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SCIENTIFIC ABSTRACT
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gt rw -41 -.-. 4-50 MAWR I W-.-. 1, ~ wl, -, r. Orm V4 V..., 'PRI RZ tw Coo -ILI 14% bid"' qu iP im bf th Yg~.; A n, Qf LNKSIN, G.A. Blastic and quasielastic scattering of 660 Nev protons on denterons. Zhnr. ekep. i teor. fiz. 32 no.3:445-452 Mr '57. (MLRA lOrIl) 1. Ob"yedinennyy instit-at vadernykh issledovanly. (Protons--Scattering) (Deuterons', ze-,e 5///, AUTTOR: Leksin, G.A., Kumekin, Yu.P. 56-5-11/46 . . ........................ 1., TITLE: On the Elastic Backward Scattering of 660 MeV Protons on the Carbon Nucleus Seen as a Whole (Ob uprugom rasseyanii nazad pro- tonov s ener*ey 660 MeV yadrom ugleroda kak tselym) PERIODICAL: Zhurnal Eksperim. i Teoret.Fiziki, 1957, Vol- 33, Nr 5, pp. 1147-1149 (USSR) ABSIR=!: A carbon target is irradiated by the internal pxx)ton ray of the synohrooyclotron. The protons scattered within the domain of r- 1800 are deflected by the magnet of the accolerator and then go over into an analyzation. electromagnet. After passing through a collimator of a length of 4 m they impinge upon the registration telescope. Summing up the results obtained by measurements it may be said that the lower limit of the elastic backward scattering cross section (p-C reaotion) does not exceed 3-10-33 2, cm /sterad. With the same probability no scattered protons were found -athin the domain of from 660 MeV to 350 MeV- The mechanism of ejection of fragments containing from Ca3NI 1/2 56-5-11/46 On the Elastic Backward Scattering of 660 MeV Protons on the Carbon Nucleus Seen as a Whole 8 to 12 nucleons differs from the quasielastic scattering by the corresponding frapents in the interior of the nucleus. There are I figure and 8 references, 5 of which are Slavic. ASSOCIATION: United Nuclear Research Institute (CFb*yedinennyy institut yademykh issledovaniy) SMMITTED,.- June 1, 1957 AVAMABLE; Library of Congress Card 2/2 85699 S/056/60/038/006/042/049/XY B006/B07O AUTHO.RS: Bayukov, Yu. D., Leksin, G. A. TITLE: The Possibility of Using Nuclear eactions to Obtain Data on nn Interactionj~ PERIODICAL: Zhurnal eksperimentalfnoy i teoreticheskoy fiziki, 1960, Vol- 36, No. 6, pp. 1907 - 1908 TEXT. Nuclear processes are considered in which transferred momenta are small also for large energies, and from whose theoretical interpretation it is possible to obtain data on nn, nK~ and KK interactions7 as is shown here. This is shown for the process where a pion is produced by a pion. Use is made of the formula of Chew and Low which gives the relationship between the cross section for this process and the nn interaction cross section for the case of small transferred momenta (Ref.1). It is shown that this formula can be applied without much error for the production of a meson by a meson on a nucleus, and that it is thus possible to obtain data on nn interaction from the total cross section for a nuclear reac- tion of the type n + A --3,n + A + B~ This is true especially for the Carol 1/2 85699 The Possibility of Using Nuclear Reactions S/056/60/038/006/042/049/Ya to Obtain Data on un Interaction B006/BO7O reaction i- + C12 4 n- + n'- + N12. Moreover, in momentum approximation.. the formula of Chow and Low must be multiplied by S2 ?X(r)e'P-r?(r)d2 before integration. This fun.--,tion gives the rj probability that the nucleus whose ground state is described by the wave function. t(r) continues to remain in the ground state even when a momentum p is transferred to it. As is shown in a diagram2 S2 falls rapidly with p. Only for p larger than 3 is this function greater than zeto (for the case of the C12 nucleus considered here). K-A-Th~r-M~~~ is thanked for advice and help. There are I figure and 2 references: 1 Soviet and I US. SUBMITTED: February 23) 1960 Card 2/2 S/120/61/000/001/025/062 E032/E114 AUTHORS: Krivitskiy, V.V., and 4qksin, G.A. TITLE: Transmission of Scintillations Through Plastic Scintillators and Light Guides PERIODICAL: Pribory i telchnika eksperimenta, 1961 'A No.1, pp.79-81 TEXT: The effect of the shape and coating of light guides and scintillators on the transmission of light (scintillations) through them has been investigated experimentally and the results obtained are now reported. The measurements were carried out with an apparatus consisting of a scintillation counter, a stabilised voltage source and a pen-recorder. Plastic scintillators (P-terphenyl + POPOP in polystyrene) were employed. Hollow and solid perspex light guides were investigated. The inner surfaces of the hollow light guides were coated with altuninium or silver films. Fig.2 shows some of the shape effects obtained. Here, the scintillator was in the form of a sector (a = 45', R = 180 mm) and was used with various light guides, i.e. a cylindrical light guide (a), a conical light guide with a cylindrical attachment (4) and a conical light guide (B). The numbers marked on the figure Card 1/4 S/120/61/000/001/025/062 Li-032/El.111 Transmission of Scintillations Through Plastic Scilit-illators, and Light Guides indicate values of the photomultiPlier anode currents. The dimensions of the light guides were as follows, Fig-2a, diameter 4o mm, length 15 mm; Fig.26, length of the cylindrical part 50 mm; Fig.2D, length of cone 125 mm~ Fis-3 illustrates the results obtained with a scintillator in the form of a sector and the light guide in the form of a hollow con-,cal pipe 125 mm long with the inner surface coated with silver. There are 3 figures, 1 table and 6 references-, 2 Soviet and 4 non-Soviet. SUBMITTED: February 24, 1960 Card 2/4 BAIATS, M.Ya.; KRIVITSKIY, V.V.; LEKSIN, G.A.; TREDUKI(OVSKIY, Yu-V. Shaping plastic scintillators by pressure. Prib. i tekh. eksp. 6 no.2:171 Mr-Ap 161. (MIRA 14:9) (Scintillation counters) BAYUKOV, YU.D.; LEKSIN G.A. - SUCHKOV, D.A.; SHAIAMOIT, Ya.Ya.; SHEBANOV, V.A. Backward elastic scattering of 2.8 bev/c IIr -mesons on neutrons. Zhur.eksp.i ~eor.fiz. 41 no-1:52-55 Jl t6-1. (MIRA 14:7) 1, Inatitut teoreticheskoy i eksperimental7noy fiziki AN SSSR. (Mesons-Scattering) (Neutrons) BAYUKOV, Yu.D.; -LEKSIN, G~A,~_; SHALAMOV, Ya.Ya. Elastic scattering of T- -me.9ons by 2.8 Bev./c neutrons. Zhur.ekspA teor.fiz. 41 no-4:1025-1030 0 '61. (rUTA 14:10) 1. Institut teoreticheskoy i eksperimentallnoy fiziki PLN SSSR. (Ilesons--Scattering) (Neutrons) S/056/61/041/006/03~ 9/C 5,1 B102/B 138 AUTHORSs Bayukov, Yu. D~, Leksin, G. A~, Shalamov, Ya. Ya, TITLE: Investigation of the reaction 11-_+n--~TF+n+mr~3 with a beam of IF mesons with a momentum of 2.8 Bev/C PERIODICALt Zhurnal eksperimentalinoy i teoreticheskoy f-.ziki, V, 41, no, 6(12), 1961, 1787-1792 TEKTt The reaction -V'+n --)1+n+m7r0, m-1 2, was studied by means of a 50 cm long, 17-liter freon bubble chamber without magnetic field, The bombard- ing pions had a momentum of 2.8 0.-3 Bev/c. The gamma quanta arising in Iro decay were recorded with quite high efficiancy. From the stereophoto- graphs taken 221 single-pronged stars were selected, representing Dion interactions with quasi-free neutrons. Only in two cases was KI formaTion recorded, so strange particle formation could be neglected in evaluating the results. The gamma and pion angular distributions were measured and the multiplicity of the reaction was determined, Resultsi In theTrN c. m. s. the angular gamma quantum distribution was anisotropic and Card 1/3 S/056/61/041/000'/019/054 Investigation of the reaction B102/B138 asymmetric, the forward-to-backward ratio was 1.76 4-- 0,30~ In the laboratory system the angular J` and fr distributions coincided within the limits of statistical error, TYR anisotropy in V~' angular distribution increased with the energy of theIr' meson., The aniso'rropy in gamma. distributions tended to decrease with increasin- number of gamma auantat ,5 with two and !.1--t-0 I 1-7+0~4 for stars with one quantum, 1,7+0 7 ;or ~'~ars Tvitfi 3 - 5,t'-quanta- In the lab-systEm-it was also grPater for stars with 0 - Al 'ir emission angles than for 900 in the c,.m s, was found to be 4 0.002 millibarn/sterad. The scattering cross sections of 7r--mesons back-scattered by protons according to -U - - p -0 7 - + p reactions are also indicated, The momentum of 7--mesons was 2A Bev/c, For angles,>900 in the c.m.s., &'< 0.03 millibarn/ /sterad was measured. I. Ya. Pomeranchuk and V. A. Shebanov are thanked for discussions. Theie are 1 figure and 6 references: 4 Soviet and 2 non-Soviet,. The two Card 1/2 ~1799 S/056/61/041/006/053/054 Wide-angle scattering of high-energy_. B110104 references to English-language publications read as follows: M. Gell-Mann, F.. Zachariasen, Preprint, 1961; C. D. Wood et al-, Phys. Rev., Lett 6~., 481, iq6i~ _>~ SUBMITTED: October 16, 1961 Card 2/2 BAYUKOV, Yu.D.; LEESINI, G.A.; SHALAMOV, Ya.Ya. _y J-mcsons. Zhur. 1: __ " - r Large-angle scatterim- of hi,-h-enr-r7. k sp, i ~ ri . fiz, 41 no.6:2016-2018 D '61. (KIRA 15:1) (14eson5--Scattering) 39677 S/056/62/043/001/049/056 B102/B104 Bayukov, Yu. D., Birger, N. G., Leksin, G. A., Suchkov, D. A PITLE: The nature of elastic nN and pp scattering in the region of large transferred momenta Z.-ZI G D !C.~ LZhurnal eksperimentallnoy i teoretich eskoy fiziki,..v4 43, no. IM, 1962, 339-341 T.~4T; The results of experimental and theoretical papers concerning elastic nif and pp-scattering with transferred momenta >0-5 Bev/c are reviewed, discussing mainly the energy course of the differential elastic scatterin- cross section. Investigations of the asymptotic behavior of ation dd 2 fl (t) the scattering amplitude point to a rel -1/dt = f(t)s J where t is the square of the transferred four-momentum and s is that of the total particle energ in the c. m. s. Numerical results from several 9%,?ers are used to study the it'.- dependence of l(t) at t-values of froz, 0.5 to'2.4 (Bev/c )2 and s up to 52 (Bev)2. It is found that l(t) drops 112 S/056,162/043/001/049/0% The nature of elastic T,11 and B102/B104 ;tj and changes its sign at jtjZ1 (Bev/c )2. 1,7ithin the .1 increasinj ,\1 ar-a) error limits no contradiction is found between the data on pp and r~ 1 scatterini~. There are 2 figures. The English-lan.guage references are: Cocconi et al. i1hys. Rev. Lett- 7, 450, 1961; R. E. Thomas, Phys. Rev. 120, 1015, 196o; Cork et al. Phys. Rev. 107, 859, 1957- A ~5s OC L! 111 OIN' ;Institut teoreti-cheskoy i eksperimental Illoy fiziki 1',kademii nauk SSSR (Institute of Theoretical and Experimental Physics of the Academy of Sciences USS)it) SUB~'..ITTED: May 8, 1962 Card 2/2 BAYUKOV, Yu.D.; BIRGER, N~G,; LEKSIR, G.A.; SUCHKOV, D.A. Nature of elastic jrII and pp-scattering in the reg-Jon of large transferable pulses. Zhur. eksp. i teor. fiz. 43 no.1:339-341 11 162. (MIRA 15:9) 1. Institut teoreticheskoy i eksperimentalinoy fiziki AN SSSR. (Meson.s--Scattering) BAYUKOV, Yu.D.; LEKSIN, G.A.; SUCHKOV, D.A.; TELENKOV, V.V. Some characteristics of spark chambers. Prib. i tekh. eksp. 8 no.1:26-28 JaSF 163. (MW 16:5) 1. Institut teoreticheskoy i eksperimentallnoy fiziki AN SSSR. (Counting devices) ------------ S/120/63/000/001/006/072 W 2/ E3 14 3 AUTHORS: Bayukov, Yu.D.~~~~ , Suchkov, D.A. and Telenkov, V.V* A Some-characteristics of spark chambers Trrl;E: PERIODICAL: Pribory i t ekhjiik eksperimenta, no' 1, 1963, 36 38 TEXT: The.apparatus shown in Fig. I was used.to investigate I the efficiency of a single-layer spark chamber as a function of 1se and its rise~time. The t he: .1 ength of the high-voltalse pu apparatus-'and the method employed. were described in detail in a -previous Paper -(FrF,, 1961, no. 3, 66)., In the present work the distanee between. the: electrodes was.6 mm and the chamber was filled mm Hg; . there, was no clearing field. All the 1-rith ar,(.,,on. at measurements. were carried'out with cosmic-ray particles. The gh-voltage pulse was taken to.be equal to R C length.-of the.hi -uhich-.was varied between 4.2 x 107 and 1.8 x 10-' sec. Thep P form of the effic oncy-versus-thyratron anode-voltage curves was -found to~be silililar for-different values of R and C I t 1'ra S, P P found ~,that 'as th e pul s e length was increased -the efficiency-vdrsus-,. Card S/l20/63/Ooo/ooi/oo6/072' Some characteristics of E032/93i4 anode~~-,~oltage curves shifted towards lower potentials. A study made of the effect-of the*chamber capacitance on the eff ic i ency. It, was found.that the results were in satisfactory -t the formula: agrement witl exp 1-n(d V(t) dt)A 0 a wh er o ij,~ is the efficiency, n is'the ioni.zation density, d Is Ls t If 6,. ~',re I 4~ci:ty o- -f - - ea e c t- r o- n-- s -j nterelec~trodd_ ` de _&xdi owthe-field strong th.at -a:part:icular'instantl i.,ee p on'the form of the high-voltage pulse, and -1:~ is the time taken the potential to. reach.the~ critical.value. Next, a study -was ability of.the single chamber to record simultaneous~JLY i:,anwnber of particles. This vras carried out with a four-layer chamber filled with neon at 'atmospheric pressure, inter- having an el ect r*o de distance of I cm. The chamber was placed in a 310 meV -mesonbeam and operated when at' least two particles passed through it (a detailed description'of this apparatus will be given '.in a-future Numerical data-:on the paper). efficiency of the Card 2/4 M~a ~;Ks EMW - - -ow- - -J io- 'Ir.- 9ga- 19 June Vw.!SPARK COUNTER. (US! R D. A Suchkov, and' Zu.:D.-'I G. A. Leksin V. V. Telenkov. Pr';*bory i te4 i1, in: -a eksperimenta, no. 2, Mar-Apr 1963 45-47. S/120/631000/002/009/041 new sp r a k.counter with a high voltage power supply for recording secondary e o n sgenerated in the reaction %-:+p + n is described. The counter, ch'~racterized by the small amount of matter in the path of the inoident particles, t f 8 cal brass case, forming 4 spark cqnsis s o electrodes, placed i o a cylindri nt g,~ps. Theelectrades aremade of aluminum fbil 7 (4 thick stretched between 10- 2 MM Hg steel rings. -The spark counter is evacuated to a pressure of 10-1 to and ther. filled h neon gas until atmospheric pressure is reached. The sparks w i are photograplaedin two mutually perpendicular -directions. The recovery time for- the generator which produces~the high-voltage pulses is about 1 sec. ICS] Card 1/1 BAYUXOV, Yu.D.;,LEKSIN, G.A.; SUCHKOV., D.A.; TEUNKOV, V.V. Spark chamber with little obstructing matter along the particle track. Prib. i tekh. eksp. 8 no 2:45-47 Mr-Ap 163. (PURA 16-4) ~Gounting devices) IEKSIN, G.A.; LOZHKIN, O.V. Conference on the Physics of High-energy Particles and Nuclear Structure. Atom. energ. 15 no.2-.172-174 Ag '63. (IAJRA 16:8) (Nuclear physics--Congresses) -66 FWTJ1)/6LT(m)/r ijkO- -AG L 27594 ------ ACC MRs WoUbco -'AUMORt jAksitt Go As 1E TITIZt Sprin School. of Theoretical aW SOWCE t Atowtoge entmglyav ve 199 Two 39 1965, 318-319 TOPIC TAGSs elamentU7 particles Particle intGraction$ nuclear Physics conference ABSTRJWT2 '1he-fifth session of the W6r-Amberd Spring Sohool-of Phy~ics i6okl A ce in eievan 18-26 May, warkingIn J a the area of the investigation of the i elemeritary*particles; and their properties. The lectures wete grovp-qd into thematic classes the followinp - resonances in elementary partic~~Ystems, !the symmetry of elementary Particles,$ strong particle Interctotions at high 'onergieslweak particle interactions atid non-retention Of parity; electro- Mgnetic interactions and experimental'methodology& A featum- of the school diDation of lecturerivIrom.- the USA and CMN~F The iuthor tbAnks- t1w n,-era foIr' .. thel,rviews 81ndAs. anyan for making this session orgaideers wA loot a success* fj-pw X ::SUB COWS 90 SUiM DAM none card 1. 1 Me/ S/137/60/000/009/002/029 A006/A001 Translation from. Referatilinyy zhurnal, Metallurgiya, 1900, t1o. 9, P. 65, # 19814 AUTHOR: ~Leksin, V. TITLE: The Economical Importance of Developing the Production of Alloys With Indium, Thallium and Tellurium PERIODICAL: Narodn. kh-vo Kazakhstana, 1960, No. 1. PP. 81-83 TECT: The small scale of production and high costs of in, Ta and TI limi-, their extended use in the manufacture of alloys, layer alloys and coatings. The -author notes the wide use of lead alloys with T1 abroad, and of non-ferroas rileta--" alloys with In and Ta. The development of rare metal industi-j in Kazakhstan is recommended. T.K. Translatorts note: This is the full. translation of the original R-,issia-n abstra-,.. Card 1/1 ,LEKSIN, VA. Present-day statua and prospects for using selenium and tellurium. Krat. soob. NGRE no.1-141-145 16o. (MIRA 17:3) V- 1v rwzz I 1CWC MrLOVAIVIC"I WI/5740 elcr=ntov Voprosy nineralogii, rCOjfj,-irji J genezina r-2otorozhd,-niy redid'Ith ek=mt-'r (Problems im lllmralo~~j, C~,.ocb,-=Aatry, =d Daponit rorzation of 11=0 M--,-2nts) I!Dscow, Izd-vo AN SSMI, 1c,60. 255 p. (Scrics: Ito: Trudy, v7p. 4) Lrrata printed on the inside of back ewror. 2,200 copies printed. chief Ed.- K. A. Vlr--o7, Corresponlinc Acad--=y of Sciences U=.; Resp. Ed.: V. V. Lyal-ag7vich; 2d. oZ Publishing F--aze: L. S. Tara ov; Tech. Ed.: P. S. Kashina. R,WOSIZ: TbIs book in intended for c~~olc,-Lsta, mir--ralo~iots, and ptrc_-xaf-zcro. Titto is a collection of 23 articles on tl,-- formation, e2olc~71, =imralo t I V, 3~3 rczrar-aY, =1 Cacch2r-lotrl of do;oaits of ra=a c3--7=t3 in Sil,,ria a:ad (Soviet] Central Azia. 7ao distrib-atioz and chnractaristica o:~ rare eic=nnta f(r=d in tha-ca areas as vall as cc= C=ntitativa aza C.-aclitat- tive =thods of investiga.Una am rockz and r1morals in vW-ch thi7 are fc,.md, card 1/6 Proble= in lUmralo_r,7 (Cent.) SO-, /5740 or -with vhi,zh tl,---y articl-rz immatiZnation of the of '~rl~:23trja C:C' ~-=tiOn C7-1 Ut! I c,-lcni=, taLlurlum, a~l hafnium. 2TO r-arnonalities are =ntioncd. EUCh a3.-' icJ-- ia acco=prxdcd by references. TABUT? OF CX-XMZS* Gar,-=h, A. L. Pealliaritica in th~! DistrIL-ation oZ Rara rlc-.znts in Pol~-_-taUic Daposita of th~a Zz-nimc3orolr He,-ion of RudnTj Altay 3 Sc=mov, Te. 1. -On the Co;i' mn' . of Lithirm =d Frbidlua in Mr--rala of fakalina Pa_-=titca of thn- L,,vozur--U7 Kaaaif 23 Dal~~, S. T., and S. Rumntav. Gn tlza Ceocl7amistry of Salanix= and Tellr,rium in the Ore Daponits of 24 Gor3khova, If. 11. On tb-- Content of Menlum in Mlybdanitca of tbz a,5~wi-4zolybdau= Barosits Card 216 Proble= in llineralov (Cont.) SV/57W =l-A=Z &7D Ycu,,,m7a, Te. it., P-ncl 1. 1. liazareaLo. Pi,-Ochlcr-- Of th-1 Vic!=-Tr,-fO Its ParaSenatic Accociatio-ar, cnl tho raci-Maritica of Its Cl=rlcal Cc--= altion 33 Zk--:oin, A. G., 0. 11. 1:a~tainw, =d 11. Ye. 7,azrha7a. r-ara~-=tic Acc-aciations of Acccaaory Nincralm of EILmnts in Z,-xconta"t ranitized Mascite Intzmiva Rocks of tha Vicb:3---rj7a Mmmtainz 51 Zhabin, A. 0. On tb-- Sopamtion Tim of tho Mwmla :,'Ioji=, Zirccziu=, and the Rare Earlths In tLaIGr=itL ro~--atito o-: tho B17=vaka7a 12M 74 Sc=nov, To. 1. Golzirconi= in AllmUna PeZzatitas 83 Karldn, V. I., Yu. A. PJaicni:o, =d A. V. Bykova. On Britholita of tb* Alkalino Rocka of Saatb--;ute= r4l=m 90 'A I 31 Card 3/ 6 in V. V.p cn~l A. D. V--o in -,3. Ca Vt2 ~=~2Gt 0: L-s-1,2 C3. tt3 ccal,~)nt oil 220 V. V., =& 0. Yo. C2 V. 17., cm-A A. V. Nf,13toi--~s tt2 contr3l Asla col,~Ottm Zt= t:n CulicagaUp Dj;;Dzlta c:: Iz '.--o 30 C:Y.-a7 KD C--=3Z,3 C2 C.7 111= 11, V. c=31VIO "67pa 02 r:;4-:)Slt3 C-"Ii C.,to Ccxl 4/6 Problar-3. in Unazalogy (Cont.) SW /5740 Zhukova, A. S. On the Problem of Cor,.)tic Typ-a of D,poaito Tikhonezimy, 1. P.0and R. F. Tilzhoninl:ova. Contact FocYa of tho loa-vozaroldy !:aos!Lf, Their G2n.^r;ia end t2.n Paculiaritica of Distri- I butiop In Them ol.' Ram 1:3tal Mmralizzation VolocliYoorich, K. L. On th2 P-koblcm of the Gtructural Dnition of tha Gornoaltayakiy Min "-,tal Pvndmce 1=20M OF j-,47F--41C=, G CrZ3 A1M 1X---L1aS Lebadeva, S. 1. Rational 1'-,thod of Quantitativo Datoraination of Diucaminated Dorf2llum in Gmiccn Orou Rodionov, D. A., S. F. Sobolov, B. P. Zolotam-v, and Ye. V. Vlwc7a. On Accidental Er2.ora of Quantititiva Mmeralogical Analyais of Ora Oli=s and Concentrates IT, : I 185 203 209 214 card 516 Probloza in MnoraloGj (Cont.) CW/5740 Lo,-incrta, L. A. Z)rpori=,ut in tl-,f) Optical Cannt-aztj of Q=.anito and Reniarite E c C.-.1 c I D: 0 3 0r A Ml i Z i La Leksin, V. 117. aoal=ts in tho Lxtraction of SQI-~Illv= .n ~Tol ~u~ Frcm the Proddu-ta of Copy-,r-::olybdom.= Ole P=cassin3 2)5 KaGanovich, a. U. Ha== (Economlo GurTay) 2!~6 AVAII.A=- - Librury of Con3raso Card 3-1 -3),61 J~MSIN, T.N.; SMIIMUGIN,, L.V. Defining the reserves of diffused elements in commercial deposits of nonferrous metals. Gor.zhur, no.3:11-14 Mr 160. (MIRA 140) la Institut mineralogii, geokhimii i krist4lokhimli redkikh elementov AN SSSR. (Ores-Sampling and estimation) S/137/62/000/007/010/072 A052/A101 AUTHOR: Leksin, V. N. TITLE: The outlook for the industrial extraction of selenium'and tellurium from the products of processing copper-molybde~um ores PERIODICAL: ReftrativnTj zhurnal, Metallurgiya,no. 7; 1962, 26, abstract 7G179 C'Tr. In-t mineralogii, geokhimii i kristallokhimii redk. elementov All SSSR", no. 4, ig6o, 235 - 246) TEXT: Cu-Mo ores are a natural source of rare and scattered elements (Re, Se, Te). Concentrations of these elements are especially high in molybdenites (Se 0.06 - 0.0275%, Te - 0.005%). In the future a special-attention must be paid to the working out' of the technology of extracting Se and Te from the products of molybdenum cycle. In connection with the industrial utilization of lean Cu-Mo ores, a special importance has the co-ordination of methods of comprehensive pro- cessing of Cu-Mo ores with the exploration of possibilities of the side extraction of Se and Te from them. There are 20 references. G. Svodtseva [Abstract;r's note: Complete translation] Card 1/1* ,9/137/62/000/004/023/201 A0061AI01 AUTHORS: Leksin, V. N,, Tokareva, A. G. TITLE: Indium extraction in complex processing of polymetallic raw-materials at lead and zinc plants'in Capitalist countries PERIODICAL: Referat:Lvnyy zhurnal, Metallurgiya, no. 4, 1962, ;~1, abstract 11G124 C'Metallurg. i khim. prom-st' Kazakhstana. Nauchno-tekhn. sb.", 1961, no. 4 (14) 116-125) TEXT: The authors analyze various technological schemes of obtaining In metal. There are 13 references.. G. Svodtseva [Abstracter's note: Complete translation) Card 1/1 S/081/62/000/008/030/057 B1601B101 AUTHORS: Getskin, L. S., Lekq#n,_V. N. TITLE:- The problem of the behavior of rare motals in sulfuric acid manufacture and the possibility of extracting them PERIODICAL: Referativnyy zhurnal. Khimiya, no. 8, 1962, 354, abstract 8K59 (Metallurg. i khim. prom-st' KazUkhstana. Nauchno-tekhn. sb., no. 303), 1961, 123 - 125) TEXT: During the roasting of pyrite concentrates a certain amount of Se, Te and Tl is driven off into the gas phase and trapped in the wet electrostatic precipitators at the fine gas-scrubbing stage. Particular attention is paid to more complete trapping of the Se and Te and their concentration in the sulfuric acid slimes, since a processing technology for removing these metals from the latter has been adopted in industry. 10 references. [Abstracter's note: Complete translation.j Card 1/1 LEKSIN -V,-N.; TOKAREV4 A. G. 7=7=j Expenditures for and prices of rare elements produced by nonferrotw metal plants. TSvet. met. 35 no.10:42-50 0 1624, (Metals, Rare and minor-Prices) (rbnferrous metal industries-Costs) GETSKINI L.S.: kf."f, 11 J Present day 2i_,5~t.e 0!' reC'nVE2r'y e-~f rare 7., e ,a --1 1, ~ r - P ---, -. a z:,; -,- --,- n - plants. T-,vet. mer.. -y7 157-1-5-1. J- 16/,. ."..Q .1,7~9) LEKSIN. V.N.-. TOKAREVA, A.G. - Exn6faics of the production of selenium and tellurium. TSvet.met. 38 no.3;69-75 Mr 1655, (MIRA 18;6) LEKSIN, Ye.N. Study of the per7zability of the heiraLoence-,halilc barrier in meningitis and encephalitis using t~c radioactive Indiuation method; preliminar-f report. Trudy Vor. med. Inst. 51:117-124 163- State of the permeability of the hematoencephalic barrier in some diseases of the nervoiis system; clin-l"cal examination u-lln,,, the I'labelled aLoms" meth.od. IUd.-I2r-1?0 (1111IRA 18.- 10) 1. Kafedra nervnykh bolezr1ey Vcjr(-,r:czhskogo medits"Inskovo instituta. LEKSImk'--A. Through combined efforts. Sov.kras.krest 4 no.1:19 Ja-Hr '54. (MLRA 7:4) 1. Predsedatell rayonnogo komitata Krasnogo Kresta. (Kotovsk District, Koldavia--Red Cross) (Red Cross--Kotovok District, Moldavia) INKSINA, I.Ye.; NOVIKOVA. S.I. Thermal expansion of fluoroplast IVJ~poly-tetrafluoroeth7lene) between -190 and 32500. Fiz. tver. tela 1 no.3:504-531 Mr 159. (MIRA 12:5) (Ith7lene--Thermal properties) I. Ye.; PENKINA, N.V. LEESINA, Optical properties of diluted palladium-silver solid solutions. Fiz. met. i metalloved 11 no.3.*470-471 Mr 161. (MIRA 14:3) 1. Institut metallurgii im. A. A. Baykova. (PaIALdium-silver alloys-Optical properties) e%. s/126/62/013/005/031/031 B073/B535 AUT'loqS: Leksina, I.Ye. and Penkina, N.V. TITLE: Optical properties of diluted solid,$.plutions of rhodium-platinum PERIODICAL: Fizika metallov i wetallovedeniye,.v-13, no.5, 1962, 799-3oo TEXT: The optical constants in the visible range of'the SpeCtrUi;l Of S,3.li(: solutions of platinuiza in rhodiu.-,l with the Lolloi-.ring platinum concentrations .,rere measured: 0.01 (Rh in the initial state)., 0.03, 0.05, 0.1, 0.2, o.4, o.6, o.8, 1.5 at.~/'~'. The initial purities were 99.95% for Rh and 99~91)/o for Pt. The speci~liens -were levitation melted in an 6atmosphere of purified heliuw and then vacuum annealed (5-10- mm Hg) for 24 hours at 11000C. The surface of the specimens was mechanically polished. Since i-aechanical polishing distorts the surface layer, the data obtained aro not the real absolute values of the optical coftstants but they do permit judging the relative changes in the optical constants as a ftinction of the content of admixtures. Five series of tests were i:iade and for each series the surfaces were Card 1/3 Opt--cal properties of,dil d ... S/126/62/013/005/031/031 E073/r.535 prepared afresh. The mearl square error in determining n and ), was about 8 and 60%, respectively. The following results wer e obtained (each value being the average of five series of measurements) 0,44 0.49 0,55 0,58 0,66 AT, % Pt n .0,01 0,81 3,89 0,98 4.69,.- 1.23 4,85 1.34 4,93 1,40 5.35 0,03 0,62 3,66 1,01 4,39 1,08 4,71 1,23 4,72 1.21 5.23 0 05 1,05 4,63 1,10 4.86 1,40 5,27 1,62 5,39 1,62 6,03 0:10 0,94 4,48 1,03 5,03 1,33 5,07 1,54 5,12 1,49 5,62 0 20 1,01 4,39 0,98 4; 22 1,25 4,71 1,28 4.7.1 1,42 5,63 0.40 0,82 4,13 0,91 4.34 1,12 4,69 1,05 4.73 1,45 5.60 0 60 0 76 4 04 0 99 4i4o 1 22 4,97 1 1 5 5 01 1,-33 5,60 O:Ad ON 3A Q:03 4.48 1:14 4, 7t) 1:1 .1 4:77 1 10 nAD 1.50 0,86 4,26 0,94 4,59 1,11 5.00 1,12 5.15 1:32 6,00 r,ard 2/3 43381. 3/05 62/043/005/050/058 v'l 6-t' BI 25YBI 04 AUTHORS: Gurov, K. P. ,-Lek 4 -Y-e--f, Penkina, 11. V. TITLE: Calculation of.the electron characteristics of metals using the,data from measurement of their optical constants PERIODICAL: Zhurnal eksperimentallnoy i-teoreticheskoy fiziki, v. 43, no. 5 (11), 1962, 1957-1963 TEXT: k method is proposed for'calculating the "microproperties" (mean velocity on tLe Formi surface, effective mass of the electrons, electron- phonon collision irequencies) of metals caused.by electrons using the measurements of the refractive indices and of the absorption coefficients of pure metals. it is assumed that the excitation of the electron system of ametals during heat absorption, thermal conduction, electric conduction, excitation by radia-tic-n etc. can be described in approximation of the isotropic.effLective mass. From, theoretical calculations of the electron structures v, = Jfg)_V~ ~nAg~(ET) = 10-14Z. VN;;;1~3gEF~ Card 1/3 S/056/62/043/'GC5/'5G/05b Calculation of the electron ... B125/B104 is obtained for the velocitylqn the Fermi surface. N 2 eff F )mv F/3 is the effective electron number per unit volume. Considering that E = mv2/2 , the ef fective mass is liven by m* . 7N -h 3&,(E )v - 6.1b.10-nIN 5 F F ~ I dfl, f- If n bands contribute to these effects, then also the weighted mean microcharacteristics must be~introduced. '-,-he weighted mean square velocity on the Fermi surface is - n - I: (16), v' - g, (EIF) gi(EIF) 91 (EIF) t),',F / g (EF), where g(7f) is 2the total densit,-,, of states on the Fermi surface. Further, Neff ~ 9 (E,)mv./3 holds (17). 12he average effective mass is 27 /,-;3)112. The collision.'requency is e ff 'F Vel 9,0116atTBI (EF? + _I0 (36), Card 2/3 S/056/62/043/005/050/058 Calculation oil the electron ... B125/B104 where E*v 2. '9 is the Debye temperature, u the velocity of sound, a = M M. The microcharacteristics of a-Fe, Pd, Al, and Cu -were calculatea by means