High Power And Super Power Plasma Cerenkov Masers

J. S. De Groot; R. A. Stone; J. H. Rogers; T. Sargent; R. J. Faehl; R. K. Keinigs

doi:10.1117/12.951811

25 July 1989 High Power And Super Power Plasma Cerenkov Masers

J. S. De Groot, R. A. Stone, J. H. Rogers, T. Sargent, R. J. Faehl, R. K. Keinigs

Proceedings Volume 1061, Microwave and Particle Beam Sources and Directed Energy Concepts; (1989) https://doi.org/10.1117/12.951811
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

A high power (GW level), high efficiency (⪆ 10%), high gain (40 db), long pulse (1 μsec) Plasma Cerenkov Maser (PCM) is under development. The preparations for preliminary experiments at reduced power (.1 GW) and pulse length (.1 μsec) are near completion. The experimental design has been modeled using linear and particle simulation codes for both reduced and full power operation. Several designs have been modeled in an effort to find a method to reduce the AC space charge effect of high current beams. Optimum efficiency is obtained with a thin beam close to a thin plasma. Calculations with a full 2-1/2 D relativistic particle code are presented for the first reported experimental device. The results generally agree with our previous 1 D calculations. Stability analysis indicates self-oscillation due to imperfect coupling can limit the gain of the amplifier. The design of the UCD PCM is described.

Citation Download Citation

J. S. De Groot, R. A. Stone, J. H. Rogers, T. Sargent, R. J. Faehl, and R. K. Keinigs "High Power And Super Power Plasma Cerenkov Masers", Proc. SPIE 1061, Microwave and Particle Beam Sources and Directed Energy Concepts, (25 July 1989); https://doi.org/10.1117/12.951811

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