SCIENTIFIC ABSTRACT AKHMANOV, S.A. - ACHMATOV, A.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000100610010-2
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: June 5, 2000
• Sequence Number: 10
• Publication Date: December 31, 1967
• Content Type: SCIENCEAB

AXHMANOV,__~.,";_.DMITRIYEV,, V.G.
Parametric amplification of traveling waves with
low-frequency
pumping. -Vest. Mosk. un. Ser. 3: Fiz., astron. 1:8
no.402-41
JI-Ag "63, (MM*l6r8)
1. Kafedra radiotekhniki Moskovskogo universiteta.
(Parametric amplifiers) (Traveling-wave tubes)

L052
S/057/63/033/001/cll/017
'B125/B186
AUTHORS s Akhma~ov, S. A., Gvoidoverip S. D. Gorshkov,.A.- S.,-and
jimi tr.iyev,
TITLEs The nonlinear effects and the parametric regeneration in the
interaction of waves.in wave guide,systems with'long electron
currents
PERIODICALs Zhurnal tekhhicheskoy;fiziki, v. 33, no. 1, 1963, 90 99
TEM Experiments were conducted in the centimeter and decimeter wave
range of this wave guide system with freely drifting electron currents
and an electron beam of a slow-'down sy*stem. Tbe effective parametric
regeneration was studied over a wide range of signal-to-pump frequency
ratios.of traveling waves. Thereby, a great number.of combination.fre-
quencies were observed, considerably influencing the non-linear and
para-
metric proces ses. The accelerating potential of;the drifting
section.has
an important-effect on the'eharactidr of the space*charge waves,in
the free.
1y drifting electron current. The parametric regeneration ia'possible
in
a very wide frequency band and shows no qualitative difference for the
Card.1/2

'S/057/63/033/001/011/017
Thenonlinear effects ... B125/B186
c.asesf > f and f -~f Nonlinear effects such as para-
pump sign pump sign
metric amplification for f pump ~f sign and f PumIP