NDLI: Design of a 100 kW-384 GHz second harmonic gyrotron

Content Provider	IEEE Xplore Digital Library
Author	Notake, T. Tatematsu, Y. Saito, T. Sabchevski, S. Agusu, L. Manuilov, V.N. Fujii, A. Ogasawara, S. Yamada, N. Ogawa, I. Idehara, T.
Copyright Year	2009
Description	Author affiliation: RIKEN, Extreme Photonics Department, Tera-Photonics Laboratory, Sendai 519-1399, Japan (Notake, T.) \|\| Faculty of Mathematics and Natural Sciences, Haluoleo University, Indonesia (Agusu, L.) \|\| Institute of Electronics of the Bulgarian Academy of Sciences,1784 Sofia, Bulgaria (Sabchevski, S.) \|\| Research Center for Development of Far-Infrared Region, University of Fukui, Fukui 910-8507, Japan (Tatematsu, Y.; Saito, T.; Fujii, A.; Ogasawara, S.; Yamada, N.; Ogawa, I.; Idehara, T.) \|\| Nizhny Novgorod State University, Radiophysical Faculty, Nizhny Novgorod 603600, Russia (Manuilov, V.N.)
Abstract	A novel high power sub-terahertz gyrotron operating at second harmonic resonance was designed. This gyrotron is intended for use as a probe beam source for collective Thomson scattering diagnostics in nuclear fusion plasma research. The resonant cavity mode, cavity radius, and its length were optimized from various aspects such as resonant frequency, coupling between the electron beam and the RF-electric field in the cavity, so-called perpendicular efficiency and radiation power. Then, the risk of mode competition was analyzed by using the CS-MMTD code. The second harmonic co-rotating TE15,2 mode was selected as the optimum operating cavity mode because the results of the numerical experiments indicate that it is less susceptible to the mode competition even for high beam currents. By such optimization, it was found that a single mode second harmonic radiation with power of 100 kW at the frequency of 384 GHz can be well expected at a cathode voltage of 65 kV and beam current of 10 A.
Starting Page	1
Ending Page	2
File Size	246993
Page Count	2
File Format	PDF
ISBN	9781424454167
DOI	10.1109/ICIMW.2009.5325744
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-21
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gyrotrons Power system harmonics Resonance Probes Particle beams Scattering Fusion reactors Plasma diagnostics Plasma sources Resonant frequency
Content Type	Text
Resource Type	Article

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