Studies of Self-Consistent-Field Structure in a Quasi-Optical Gyrotron

The presence of an electron beam in a quasioptical gyrotron cavity alters the structure of the fields from that of the empty cavity. A computer code has been written that calculates this alteration for either an electron beam or a thin dielectric tube placed in the cavity. Experiments measuring the quality factor of such a cavity were performed for the case of a dielectric tube and the results agree with the predictions of the code. Simulations of the case of an electron beam indicate that self-consistent effects can be made small, in that almost all the power leaves the cavity in a symmetric Gaussian-like mode, provided the resonator parameters are chosen carefully.


Published in:
Physics of Fluids B-Plasma Physics, 5, 10, 3798-3807
Year:
1993
ISSN:
0899-8221
Laboratories:
SPC
CRPP




 Record created 2008-04-16, last modified 2018-01-28


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