Record Details

Influence of sideband oscillations on gyrotron efficiency

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Influence of sideband oscillations on gyrotron efficiency
 
Creator GUSS, WC
BASTEN, MA
KREISCHER, KE
TEMKIN, RJ
ANTONSEN, TM
CAI, SY
SARAPH, GIRISH P
LEVUSH, B
 
Subject backward wave oscillators
electromagnetic oscillations
gyrotrons
millimetre wave generation
millimetre wave oscillators
 
Description We report the observation of sideband mode effects on the efficiency of overmoded gyrotron operation. Two cavities were designed and operated which differed in the presence of sideband modes. In one version of the cavity, parasitic backward waves modes were observed and efficiencies were approximately 22% at 40 A beam current. With the use of a multi-mode self-consistent nonlinear code, a modified design was generated which eliminated the sideband modes. Experiments were conducted with this new cavity which produced efficiencies of approximately 33% at 30 A and 27% at 40 A beam current, but with a slightly higher velocity ratio than seen with the earlier cavity. An additional cavity, also with no sideband modes but with a longer cavity length and therefore higher Q obtained powers up to 1.3 MW with an efficiency of 39% at a 40 A beam current.
 
Publisher IEEE
 
Date 2009-01-29T12:10:06Z
2011-11-25T16:33:20Z
2011-12-26T13:05:46Z
2011-12-27T05:53:17Z
2009-01-29T12:10:06Z
2011-11-25T16:33:20Z
2011-12-26T13:05:46Z
2011-12-27T05:53:17Z
1994
 
Type Article
 
Identifier IEEE Transactions on Plasma Science 22(5), 871-877
0093-3813
http://dx.doi.org/10.1109/27.338302
http://hdl.handle.net/10054/590
http://dspace.library.iitb.ac.in/xmlui/handle/10054/590
 
Language en