SCIENTIFIC ABSTRACT TSYTOVICH, V.N. - TSYTOVICH, V.N.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001757320017-8
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 31, 2001
• Sequence Number: 17
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

S/057/61/031/007/002/021
Transient radiation of a current ... B108/B209
total intensity of emission for the transition of the current through the
boundary is found as J = -W~ -Wo -AE ( 18) -Further calculations Ahow-1hat
A em
in the case of a strong magnetic field the intensity,of the radiatioix is
,less than when no field is present at all. When the boundary is extended,
i. e., when an intermediate region of the thickness 10 exists, the
2 2_ 2 z
relation tv 6. iv 01 (24) holds, where t~, is the Langmuir frequency of the
01 0
0
medium at z>l0. The following is obtained for the Fourier components of
the electric field in the intermediate region:
d2E
(25)
C-C C, N2X2; X2 W2 - k2,
0
N= h N,
W2
(26).
L2 e!t'vc'
C2 v
Card 6/9

29022
S/057/,61/031/007/002/021
Transient radiation of a current B108IB209
By solving Eq. (25) one finds the work performed ditftng the transition from
the vacuum to the mediums
W=-LIE,(x, z,'t)j.~ dz=-L' jw,,.dkd, (37)
a) in the vacuum:..---
We *0
(36)
b) in the intermediate region:
Card 7/9

25 022
S/057J61/031/007/002/021
-Transient ra-liation of a current B108IB209
C6
N31
e ds
V?r 1h)
(39)
e (e-4.8-igs - e-c-#7"t) do
Or.
-4- ~Kt-" Ojelh"f do,
V11" v e
o) in the mediums
(40
0
When 1 ten,is towards infinity, the work in vacuo,tv and that in the
0
E
mediuml iv p vanish. Vinailyp the author thanks V.**I.' Veksler, V. L.
Ginzburg, M. S. Rabinovich, and B. M. Bolotovskiy for discussions. 1. M.
Card 6/9

25022 S/057/61/031/007/002/021
Transient radiation of a currr-f-.t ... B108/B209
Frank is mentioned. There are 7 Soviet referenoen.
ASSOCIATION; Fizicheskiy inatitut AN SSSR im. P. N. Lebedeve, Moskva
(Inatitutoof Physics AS USSR imeni P. N. Lebedevy Moscow)
SUBMITTED: September 1, 1960
Card 9/9

TSYTOVICHY V.N.
Coherent transition radiation from current-carrying and charged
clusters. Zhur.te"fiz. 31 no.8:923-935 Ag 161. (14IRA 14:3)
(Radiation) (Particles (Naclear physics))

LWINP M.L.; 'MYTGVICH, V.N.
4:--
Taking inertia into account in current interaction. Zhur.tekh.fiz,.
31 no.8:936-938 Ag 161. (14IRL 14:8)
1. Fizicheskiy inatitut imeni P.N.Lebedeva 0 SSSR,, 14oskva.
(Electric currents)

2h7o6
S/056/61/040/005/00S/019
B111/B205
AUTHOR: Tsytovich, V. N.
TITLE: Some problems in relativistic gas dynamics of charged
particles
PERIODICAL: Zhurnal eksperimentallnoy i teoreticheskoy'fiziki, v. 4D,
no. 5t 1961, 1325-1332
TEXT% In the first section of the present paper the results of
V. 1. Yeksler (DAN SSSR, 118, 63, 1958) and I. M. Khalatnikov (ZhETF,
529, 1954) for self-consistent and external electromagnetic fields are
generalized, and it is shown that in all cases where the ion portion of
the current is small, the theorem of conservation of the magnetic flux
along a fluid contour can be generalized to relativistic motions of an
elpntron-ion plasma. The second part is devoted to the study of the.one-
dimensional relativistic expansion of a charged gas layer into the empty
space, the inertial terms being predominant, and also to the problem of
electric fields generated during expansion of a quasi-neutral plasma into
Card 1/5

Some problems in relativistic...
S/02 06
5 61/040/005/OC6/Clig
~i'3
B111 B205
the empty space. Furthermore, the problem of relativistic collision of
the charged layer with constant external fields is treated. The invostiga-
tion is limited to isentropic motion in an electromagnetic field, for
(s). _eA + ~(S)/ is derived; W (s)_ W(s)/n(s):
which the relation 1'.,( s ) U 6
with w(s) being the heat function per unit volume, n(s) the proper density
of the particles', u(8) the four-v.elocity, A the four-potential of the
electromagnetic field, and y the flow potential. This relation is found
to be the desired generalization. In the following, it is shown that the
above equation will always be fulfilled for one-dimensional non-steady
events. This is illustrated by the one-dimensional motion of an electron
fluid with a current perpendicular to the direction of motion. The
theorem of conservation deduced therefrom reads
a a ) (W(,)U(g) d
111~ -rU46- 3 + MO = 77 (W()u'3') + eA,) 0.
X, X1,
Card 2/5

2h7o6
S/056/61/040/005/006,/019
B111/13205
Some problems in relativistic...
If the inertial term 74(e)U(e) is negligible, then Eq. (8) will take the
3
form of the theorem of conservation of the flux through a fluid contour.
It is sho7ni that the one-dimensional non-steady notlion is here a
potential flovi. A'goneralization of Thomson's theorem of conservation
of the velocity circulation is derived also for a three-dimensional
motion: '~~ F I + ;'; F 'I
/J x a + '2 F av I'L' x~L Pa /.-Y xv w 0 . Some one-dimensional.
problems are discussed next: 1) relativistic expansion of a chargod layer
into the.empty space. For -I- xi~~l (I layer thickness) one ol)tains
u1n,rx, + (Xo1")(Y_'O+ I
U = VY = V/ Y I - 0 i (19)
where v indicates the hydrodynamic velocity, and n 0 the initial density,
ro-47ce 2/m The particle density is given by
(21)
u- ' n,r,,xj* + (Yf I
no U. YJ + U-1
Card.3/5

24706
S/056/61/040/005/0-:6/019
Some problems in relativistic... Bill/B205
Y,hioh hold-- for To /m