In this paper exact analytic conditions for absolute instability in the cyclotron resonance maser are presented for the case of a cold‐beam, lossless circular waveguide and infinite interaction length in the axial direction. The conditions are expressed in terms of the parallel beam velocity, the applied magnetic field strength, and the strength of the coupling between the beam and waveguide modes. The results are applicable to both the gyrotron and cyclotron autoresonance maser operating regimes.
REFERENCES
1.
2.
V. L.
Bratman
, N. S.
Ginzburg
, G. S.
Nusinovich
, M. I.
Petelin
, and P. S.
Strelkov
, Int. J. Electron.
51
, 541
(1981
).3.
4.
5.
K. D.
Pendergast
, B. G.
Danly
, R. J.
Tempkin
, and J. S.
Wurtele
, IEEE Trans. Plasma Sci.
PS‐16
, 122
(1988
).6.
7.
J. K.
Lee
, W. D.
Bard
, S. C.
Chiu
, R. C.
Davidson
, and R. R.
Goforth
, Phys. Fluids
31
, 1824
(1988
).8.
Y. Y.
Lau
, K. R.
Chu
, L. R.
Barnett
, and V. L.
Granatstein
, Int. J. Infrared Millimeter Waves
2
, 373
(1981
).9.
Y. Y.
Lau
, K. R.
Chu
, L. R.
Barnett
, and V. L.
Granatstein
, Int. J. Infrared Millimeter Waves
2
, 395
(1981
).10.
A. T.
Lin
, K. R.
Chu
, and A.
Bromborsky
, IEEE Trans. Electron Devices
ED‐34
, 2621
(1987
).11.
J. A.
Davies
, R. C.
Davidson
, and G. L.
Johnston
, J. Plasma Phys.
40
, 1
(1988
).12.
R. J. Briggs, Electron Stream Interactions with Plasmas (MIT Press, Cambridge, MA, 1964).
13.
A. Bers, in Basic Plasma Physics 1, Handbook of Plasma Physics, edited by A. A. Galeev and R. N. Sudan (North‐Holland, Amsterdam, 1983), Vol. 1, Chap. 3.2.
14.
B. G.
Danly
, K. D.
Pendergast
, R. J.
Temkin
, and J. A.
Davies
, Proc. SPIE
873
, 143
(1988
).
This content is only available via PDF.
© 1989 American Institute of Physics.
1989
American Institute of Physics
You do not currently have access to this content.