Slotted third-harmonic peniotron forward-wave oscillator

Anthony T. Lin; Chae K. Chong; David B. McDermott; Adam J. Balkcum; Frederic V. Hartemann; Neville C. Luhmann Jr.

doi:10.1117/12.175762

13 May 1994 Slotted third-harmonic peniotron forward-wave oscillator

Anthony T. Lin, Chae K. Chong, David B. McDermott, Adam J. Balkcum, Frederic V. Hartemann, Neville C. Luhmann Jr.

Proceedings Volume 2154, Intense Microwave Pulses II; (1994) https://doi.org/10.1117/12.175762
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

An experiment has been built to test the novel, efficient peniotron interaction at the third harmonic in a slotted eight-vane waveguide by using the axis-encircling electron beams produced by a gyroresonant rf accelerator. By configuring the oscillator so that the peniotron is excited as a forward wave at the cutoff frequency of a travelling-wave circuit, the peniotron can be made to dominate over the usually stronger gyrotron interaction. The 10 GHz peniotron will be driven by a 70 kV, 3.5 A axis-encircling electron beam with (alpha) equals v_{(perpendicular})/V_Z equals 1.3 and is predicted by a nonlinear, self-consistent, multi-mode PIC code to yield 110 kW with 45% efficiency. The travelling-wave circuit is terminated on the upstream end by a load and by a transition to a TE₄₁/TE₁₁ mode converter on the collector end. PIC code simulation results and a description of the assembled experiment are presented.

Citation Download Citation

Anthony T. Lin, Chae K. Chong, David B. McDermott, Adam J. Balkcum, Frederic V. Hartemann, and Neville C. Luhmann Jr. "Slotted third-harmonic peniotron forward-wave oscillator", Proc. SPIE 2154, Intense Microwave Pulses II, (13 May 1994); https://doi.org/10.1117/12.175762

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