SCIENTIFIC ABSTRACT LEBEDEV, S.V. - LEBEDEV, T.A.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000929020016-2
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 31, 2001
• Sequence Number: 16
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

Fz \j V An i RogadAvAll & I
-Ungmalr wl@mke
a I=wweh =do of a vicaum tube by an lmpoMl.
lot., Acad. Scl. UZZM-,ffm__ww). Zhar. Ekipti. V
Yeard. 1%. 27, 497-WO(1954).-Upon heatiag the W cath-'
ode of a vacuum tube by an Impube current of about 3A X ; P
amp,/Sq. cm. to Saode4m -pulse Current 1.* appeared, -
which IM 100 Umes greaw than the anale Curreut 1.*,
Which *aslimited bytheswacharge. Upoq1teatiog*1the
Cathode with an Impulse current of UP amp./sq; Cm. the,
current 14 was only about 1,0 times ad great as I.,. lithe:
suade vWtage and 1: were decreaied, the anomalous tnsg-
altudedlaolvadecreased. A ratio rtl.*of about lot was'
found at anode voltages V. In the ortler of 100 v., just as-
well 04 At &4 V.. where the cd& of long to the tube at the -
expense of the anode &M was impossible. This anomalous
14 appeuvd ter abouct" sm. after the current i W been'
switched off, wit" bated the cathode (in the absence of
sa otho current). but 1, did not grow any more during
U., The f.,t that 1. wa , much great, tun
cooki not be ex9taluM br a neutralization of the space,
charge by faus, becauce this anomalously hish 1. appeared
whas the no. of Iona In the Who was rather small; If tids;
110, tocreased, 1. became aftwt ---I to R. The gmw#A
d re was aw@@ed by a change J tf@e state of the cathode
The growth of theanocle
current on" the value Ila the domaln at the
eWced
th
he
;=t i IM whl@
t
(It" of hostlac of the cathat b the
of validity of the Hagaslavskff-Langunur law). VVInk
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ther hating d the cathode wast be explained by the
kmvy Increm of the endulou from the exthode.

USSR/Physics High-density currents FD-986
Card 1/1 Pub. 146 - lo/2o
Author Lebedev, S. V.
Title :Phenomena in wolfram conductors just preceding their explosion under
the action of a strong current.
Periodical :Zhur. eksp. i teor. fiz., 27, No 5 (11), 605-614, Nov 1954
Abstract :For a current density of about j - 5 105 ampere/=2 one observes anoma-
lies in the state of wolfram, which were discovered earlier for the case
of currenz densities greater than 5-lo6 ampere/cm2 (S. V. Lebedev and
S. E. Khaykin, ibid., 26 (1954), 629 and 723). I-Then a current of about
5.105 ampere/cm2 suddenly enters a circuit it is noted that wolfram does
not become fluid although its energy correspond-to the energy of the
liquid state. Indications of anomalous emission are observed simultane-
ously with indications of anomalous dependence of resistance upon energy.
The author considers as.sumptions concerning the character of the varia-
tions occurring in a metal when heated by a current of large density.
Five references (e.g. L. A. Ignatlyeva and S. G. Kalashnikov, ibid.,
@@2, 385, 1952).
Institution ! Physics Institute imeni P. N. Lebedev, Acad. Sci. USSR
Submitted : January 1, 1953
_6

A c.,6 e. We- ko@ 5 - V-
USSR/Physics - Electron emission FD-1892
.Card 1/1 Pub. 146-iP/21
Author : Borodovskaya, L. N., and S. V. Lebedev
NWJWI
V'L'L@2 : Dependence of electrical conductivity and electron emission upon the
energy of a metal in process of its bein@; heated by a current of large
density
i`-@riodical :Zhur. eks-D. i teor. fiz. 28, 96-110, January 1955
11
Abstract : During the heating of nickel conductors by a current of 60,000 to 5,000,000
amperes per square centimeter the authors observed a phenomenon of the same
character as was observed earlier in wolfram by S. V. Lebedev and S. E.
Khaykin (ibid., 20", 629, 1954 etc.). In the investigation of the dependence
of the resistance R of the conductor upon the energy E introduced into it,
they observed in the curve R = R (E) points of discontinuity whose posi-
tions in resistance and energy do not chapgre with chsrLge in the density of
the heating current (DII, V1, Au, constantan). Investigation of the emission
showed that the anomalously large emission from nonruptured conductors can
decrease although the rate of enerGy onset into the conductor exceeds the
loss of encrCy at the temperature of fall in the case of stationary heat-
in,,. The present data characterizing
I _, th@! rate of dccrease of emission
aft@.,r disconnection of the heatinS current. 12 ref.
Institution: Physical Institute im. li@bedev, Acad. Sci, USSR
Submitted August 1, 1953-

Ingot; LF.BEDEV,S.V. PA - 2073
'TITLE: Ye-�1.-y-TToTEe- critical Remarks of I.F.KVARTSKRATA concerning
some of our papers. (Otvet na kritic"eskie zamecanija I.F.
XVARTSKHAVY po povodu nakch statejq Russian).
PIRIODICAL: Zhurnal Eksperimentallnoi i Teoret.Fiziki, 1957, Vol 32, Nr 1,
pp 144-146 (U.S.S.R.)
Received: 3 / 1957 Reviewed; 4 / 1957
A13STRACT: In some of his previous papers the author investigated the de-
pendence of the electric resistance R and of the electron
emission on the energy E of the metal which is deposited in it
at a current density of j - 105 _ 107 A/om 2. The main results
of these works are again enumerated. According to the criticism
of I.F.KVARTSKEAVA, Zhurnal Eksperimentallnoi i Tooret.Fiziki,
Vol 30, p 621 (1956) it might be assumed that the author in his
previous works had assumed an abnormal dependence of the re-
sistance R on E in the case of E '@ W H and the exclusion of
OMVS law. (The significance of W H is not given here). The lack
of anomalies of R and E in the case of B 1< W.1 however, was
ascertained by the author in a previous work with an accuracy
of 5%. The author did not notice any deviations from OEMIS law
Card 1/3 but he found that the mistakes ascribed to the invalidity of

PA - 2073
Reply to the Critical Remarks of I.F.KVARTSKEAVA concerning
some of our Papers.
OHM'S law by other experimenters is due to inductive distortions
of the oscillograms. Contrary to what KVARTSKHAVA says the
author actually introduced the correction for inductivity.
KVARTSKHAVA says that the author did not measure E and R
correctly, and that the energy surplus of the wire noticed in
the case of large j is connected with the macroscopic motion
of the metal and not with its interior energy. The conclusions,
however, arrived at by the author are confirmed by new data
according to which at j >, 5.106 A/cm2 the motion of the metal
up to the moment of explosion cannot destroy the constancy of
the cross section along the wire. If the current is switched
on at such values of E as are a little less than Ec (the
significance of E0 is not given here), the explosion of the
wire no longer takes place and the wire disperses in droplets.
KVARTSKHAVA tries to explain the anomalies of the anode
current Iaby the ignition of the discharge. In the case of
Card 2/3 the ignition of discharge, however, the increase of diBcharge

Reply to the Critical Remarks of I.F.KVARTSKHAVA PA - 2073
concerning some of our Papers.
is limited by the properties of the exterior electric circuit.
Furthermore, KVARTSKHAVA declares, as the author believes with-
out justification, that the magnetic field of the current i
which heats the wire is bound to shut off the anode current I a
at the here applied anode voltages Va < 1kV, if no dis-
charge occurs along the wire.
KVARTSKHAVAIS explanation that the anomalies of the anode
current are due to a discharge and some other statements he
made do not agree with the author's experiments.
ASSOCIATION: Physical Institute "P.N.LEBEDEV" of the Academy of Sciences
of the USSR
PRESENTED BY:
SUBMITTED:
AVAILABLE: Library of Congress

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Explosion of * Uetal Due to an Eleczric Current. PA - 2661
ideas with conclusions arrived at by other a thors.
u5 2
Conclusionst At current densities Of J 5. 10 A/cm the
wires (&_,-/ 70 (1163, ISI 2, /ii?j 28773
B/057/61/031/010/006/015
B104/B125
AUTHORSt Lebedev, S. Ya., Stavisskiy, Yu. Ya., Bondarenko, 1. 1.,
yev, b. A.--,-Stakhanov, 1. P., and Stumbur, E. A.
TITLEs, Plasma oscillations in ion-beam neutralization
PERIODICALs Zhurnal tekhnicheskoy fiziki, v. 31, no. 10, 1961, 1202-1208
TEXTt The consequences of the condition that the total ion current in a
plasma vanishes have been studied. Electrons and ions are assumed to be
emitted orthogonally from a conductor surface at the velocities v 10 and
v20' Equations of motion and continuity for electrons and ions are
, co, the condition that
studied. For the potential y in the interviil 0,