| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-10-04 |
| タイトル |
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タイトル |
Automation of gyrotron electron beam current for fusion devices |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Shinya Takahiro
Ikeda Ryosuke
Kazuo Hayashi
Tsuneyama Masayuki
Taku Nakai
Yajima Satoru
Yoshimura Yasuo
Yamazaki Hibiki
Kobayashi Takayuki
Kajiwara Ken
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
The electron beam current of high-power, long-pulse gyrotrons for fusion devices is typically controlled to remain constant by adjusting the power to the cathode heater by using a pre-programmed waveform. However, this pre-programmed waveform is usually developed through a time-consuming trial and error process and its precision is low. Therefore, a system to automatically control electron beam current was developed and its performance was tested with one of the JADA/QST-manufactured gyrotrons for ITER. The control system automatically adjusted beam current to a target value of 47 A within ±0.5% for 900 s. This high-precision beam current control can maintain an output power of 1 MW and, being automated, it is useful for power on/off modulation operations. If the operation is switched from continuous to modulated, the beam current can be changed to compensate for the decrease in emission cooling of the cathode. This automatic control system demonstrates the quick recovery of a stable beam current in modulation operations. |
| 書誌情報 |
Nuclear Fusion
巻 64,
号 12,
p. 126009,
発行日 2024-09
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| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1088/1741-4326/ad7b55 |
