Experiments With A 35 GHz Cyclotron Autoresonance Maser (CARM) Amplifier

G. Bekefi; A. DiRienzo; C. Leibovitch; B. Danly

doi:10.1117/12.978523

18 November 1988 Experiments With A 35 GHz Cyclotron Autoresonance Maser (CARM) Amplifier

G. Bekefi, A. DiRienzo, C. Leibovitch, B. Danly

Proceedings Volume 1039, 13th Intl Conf on Infrared and Millimeter Waves; (1988) https://doi.org/10.1117/12.978523
Event: 13th International Conference on Infrared and Millimeter Waves, 1987, Honolulu, HI, United States

Abstract

Studies of a cyclotron autoresonance maser (CARM) are presented. The measurements are carried out at a frequency of 35 GHz using a mildly relativistic electron beam of 1.5 MeV energy and a 200 A current. The beam is generated by a field emission electron gun followed by an emittance selector that removes the outer, hot electrons. The entire system length (~2.0 meter), including the field emission gun, is immersed in a uniform solenoidal guide field of 7 kG. Perpendicular energy is imparted to the electrons by means of a bifilar helical wiggler having a period of 7 cm and a length of 56 cm. The cyclotron radiation is generated in a 1 meter long wiggler free region. Initial superradiant measurements give a small signal gain of 91 dB/m. Experiments are also underway in which a 35 GHz, 100 kW magnetron is used as the driver for our CARM amplifier.

Citation Download Citation

G. Bekefi, A. DiRienzo, C. Leibovitch, and B. Danly "Experiments With A 35 GHz Cyclotron Autoresonance Maser (CARM) Amplifier", Proc. SPIE 1039, 13th Intl Conf on Infrared and Millimeter Waves, (18 November 1988); https://doi.org/10.1117/12.978523

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