Howard Roberts Jory

TL;DR: The development of gyro-oscillators for fusion experiments has led to the utilization of the devices in several industrial applications, such as ceramic sintering and metal joining as mentioned in this paper.

TL;DR: In this article, a symmetric set of fundamental-mode waveguides are used to couple energy in phase from the operating electromagnetic mode but in anti-phase with respect to an unwanted mode of lower cutoff frequency than the operating mode, thereby neutralizing coupling to the unwanted mode.

TL;DR: A gyrotron interaction resonator operating in a TEn1 cavity mode has an array of longitudinal slots 32 in the conductive wall 30. The slots 32 are spaced to couple to the unwanted TEn 1 modes and to other modes of differing n and not to the desired mode as discussed by the authors.

TL;DR: In this article, a high-power gyrotron, employing an internal converter that produces a Gaussian-like output mode, has been designed and tested, achieving output power levels of 680, 530, and 350 kW for pulse durations of 0.5, 2.0, and 10.0 s.

Abstract: The development of a 10-kW average power, 94-GHz gyroklystron amplifier is described. This average power was obtained with 11% radio frequency (RF) duty factor and 92-kW peak power in the TE/sub 01/ circular cavity mode. The instantaneous bandwidth was 420 MHz, and the efficiency was 33.5%. Low-duty-factor testing also yielded a peak power of as much as 115 kW with 600-MHz instantaneous bandwidth. This development effort was carried out over the past three years and represents record average power performance in an amplifier at this frequency.