IMPROVED COMPUTER MODELING OF MAGNETRON INJECTION GUNS FOR GYROTRONS

被引:19
作者
CAPLAN, M
THORINGTON, C
机构
关键词
D O I
10.1080/00207218108901346
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A variable-mesh finite-element electron gun design code has been developed to simulate hollow beams produced by magnetron injection guns. Very accurate solutions of the self-consistent space charge forces are obtained by using a computational mesh, distorted in a way which allows a high density of mesh points within the hollow beam. A generalized 'hybrid model' for cathode emission has been incorporated which combines temperature-limited and space-charge-limited emission in a way justified from empirical and physical arguments. Beam characteristics of a magnetron injection gun are presented as the transition from temperature-limited to space-charge-limited operation is made. Limited comparisons with experimental results are presented.
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页码:415 / 426
页数:12
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