| タイトル | Operational status of superconducting resonators of the JAERI tandem-booster |
| その他のタイトル | JAERIタンデム・ブースターの超伝導共振器の運転現状 |
| 著者（日） | 竹内 末広; 松田 雅昌; 石崎 暢洋; 田山 豪一; 飯島 明彦; 吉田 忠 |
| 著者（英） | Takeuchi, Suehiro; Matsuda, Masaaki; Ishizaki, Nobuhiro; Tayama, Hidekazu; Iijima, Akihiko; Yoshida, Tadashi |
| 著者所属（日） | 日本原子力研究所; 日本原子力研究所; 日本原子力研究所; 日本原子力研究所; アトックス; アトックス |
| 著者所属（英） | Japan Atomic Energy Research Institute; Japan Atomic Energy Research Institute; Japan Atomic Energy Research Institute; Japan Atomic Energy Research Institute; ATOX Co. Ltd.; ATOX Co. Ltd. |
| 発行日 | 2003-06 |
| 刊行物名 | Proceedings of the 10th Workshop on RF Superconductivity, SRF2001
Proceedings of the 10th Workshop on RF Superconductivity, SRF2001 |
| 開始ページ | 591 |
| 終了ページ | 593 |
| 刊行年月日 | 2003-06 |
| 言語 | eng |
| 抄録 | Since the JAERI tandem booster started operating in 1994, the forty superconducting quarter-wave resonators of the frequency of 129.8 MHz and the optimum beta of 0.1 have been working for heavy ion energy boost. This paper reports the resonator performances measured recently, making a comparison with old data. Present operating field levels at the rf input of 4 watts give the same mean value of 4.6 MV/m as obtained in 1995. Degradations of Q factors due to electron field emission at high fields were, however, seen increased in many resonators. The Q-degradations due to hydrogen Q-disease were partly recovered by a fast cool-down process. |
| キーワード | JAERI Tandem-Booster; 1/4 wave resonator; superconducting cavity resonator; operation; heavy ion accelerator; electron field emission; hydrogen Q-disease; report; fast cool-down process; performance test; Q factor; degradation; JAERIタンデム・ブースター; 1/4波長共振器; 超伝導空洞共振器; 運転; 重イオン加速器; 電子電界放出; 水素Q病; 報告; 速い冷却過程; 性能試験; Q因子; 劣化 |
| 資料種別 | Conference Paper |
| SHI-NO | AA0046174116 |
| レポートNO | KEK-Proceedings-2003-2 |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/32156 |
