APS » PROLA » Phys. Rev. Lett. » Volume 71 » Issue 13

Phys. Rev. Lett. 71, 2018 - 2021 (1993)

Experimental study of a 28 GHz high-power long-pulse cyclotron autoresonance maser oscillator
Download: Page Images , PDF (714 kB), or Buy this Article (Use Article Pack) Export: BibTeX or EndNote (RIS)

S. Alberti, B. G. Danly, G. Gulotta, E. Giguet, T. Kimura, W. L. Menninger, J. L. Rullier, and R. J. Temkin
Plasma Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

Received 29 January 1993

Experimental results of the first efficient operation of a long pulse cyclotron autoresonance maser oscillator are presented. Output power of 1.9 MW for a beam energy of 450 keV and current of 80 A, corresponding to an efficiency of 5.2%, has been measured at 27.8 GHz in the TE11 mode of a Bragg resonator. The observed frequency of the cyclotron autoresonance maser emission corresponds to a Doppler unshifted frequency of 2.9 times the relativistic cyclotron frequency. A significant mode competition between the TE11 and a TM01 mode is present.


©1993 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v71/p2018
DOI: 10.1103/PhysRevLett.71.2018
PACS: 42.52.+x, 52.75.Ms, 85.10.Jz

[ Abstract  |  Previous article  |  Next article  |  Issue 13 ]