Status of high power gyrotron development in JAEA

Author

Sakamoto, Kazumitsu ; Kajiwara, Kagemasa ; Oda, Yuta ; Hayashi, K. ; Takahashi, Koichi ; Kobayashi, Takehiko ; Moriyama, Shinichi

Author_Institution

Japan Atomic Energy Agency, Naka, Japan

fYear

2013

fDate

21-23 May 2013

Firstpage

1

Lastpage

3

Abstract

Recent results of a multi-frequency gyrotron and a high frequency power modulation experiment using 170 GHz gyrotron are reported. Three frequency oscillations and their Gaussian beam outputs are demonstrated at 170 GHz, 137 GHz and 104 GHz. At present, 0.9 MW/ 70 sec, 1.1 MW/ 5 sec were obtained at 170 GHz. An experiment of 203 GHz oscillation will be conducted from April 2013 in addition to further power increase and pulse extension. In parallel, 5 kHz full power modulation was demonstrated by an anode voltage modulation using a double anode switching.

Keywords

gyrotrons; Gaussian beam outputs; JAEA; anode voltage modulation; double anode switching; frequency 104 GHz; frequency 137 GHz; frequency 170 GHz; frequency 203 GHz; frequency oscillations; full power modulation; high frequency power modulation; high power gyrotron development; multifrequency gyrotron; Anodes; Frequency modulation; Gyrotrons; Magnetohydrodynamics; Oscillators; Switches; 5kHz power modulation; high power gyrotron; multi-frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International

Conference_Location

Paris

Print_ISBN

978-1-4673-5976-4

Type

conf

DOI

10.1109/IVEC.2013.6571137

Filename

6571137