A digital low-level radio-frequency system R＆D for a 1.3 GHz nine-cell cavity
To test and verify the performance of the digital low-level radio-frequency （LLRF） and tuner system designed by the IHEP RF group, an experimental platform with a retired KEK 1.3 GHz nine-cell cavity is set up. A radio-frequency （RF） field is established successfully in the cavity and the frequency...
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| Published in | 中国物理C：英文版 Vol. 36; no. 3; pp. 261 - 266 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
2012
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-1137 0254-3052 |
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| Abstract | To test and verify the performance of the digital low-level radio-frequency （LLRF） and tuner system designed by the IHEP RF group, an experimental platform with a retired KEK 1.3 GHz nine-cell cavity is set up. A radio-frequency （RF） field is established successfully in the cavity and the frequency of the cavity is locked by the tuner in ±0.5°（about ±1.2 kHz） at room temperature. The digital LLRF system performs well in a five-hour experiment, and the results show that the system achieves field stability at amplitude 〈0.1% （peak to peak） and phase 〈0.1° （peak to peak）. This index satisfies the requirements of the International Linear Collider （ILC）, and this paper describes this closed-loop experiment of the LLRF system. |
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| AbstractList | To test and verify the performance of the digital low-level radio-frequency （LLRF） and tuner system designed by the IHEP RF group, an experimental platform with a retired KEK 1.3 GHz nine-cell cavity is set up. A radio-frequency （RF） field is established successfully in the cavity and the frequency of the cavity is locked by the tuner in ±0.5°（about ±1.2 kHz） at room temperature. The digital LLRF system performs well in a five-hour experiment, and the results show that the system achieves field stability at amplitude 〈0.1% （peak to peak） and phase 〈0.1° （peak to peak）. This index satisfies the requirements of the International Linear Collider （ILC）, and this paper describes this closed-loop experiment of the LLRF system. |
| Author | 邱丰 高杰 林海英 刘熔 马新朋 沙鹏 孙毅 王光伟 王群要 徐波 |
| AuthorAffiliation | Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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| Notes | To test and verify the performance of the digital low-level radio-frequency （LLRF） and tuner system designed by the IHEP RF group, an experimental platform with a retired KEK 1.3 GHz nine-cell cavity is set up. A radio-frequency （RF） field is established successfully in the cavity and the frequency of the cavity is locked by the tuner in ±0.5°（about ±1.2 kHz） at room temperature. The digital LLRF system performs well in a five-hour experiment, and the results show that the system achieves field stability at amplitude 〈0.1% （peak to peak） and phase 〈0.1° （peak to peak）. This index satisfies the requirements of the International Linear Collider （ILC）, and this paper describes this closed-loop experiment of the LLRF system. LLRF, tuner, 1.3 GHz, RF, ILC 11-5641/O4 QIU Feng GAO Jie LIN Hai-Ying LIU Rong MA Xin-Peng SHA Peng SUN Yi WANG Guang-Wei WANG Qun-Yao XU Bo （1 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China） |
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| Snippet | To test and verify the performance of the digital low-level radio-frequency （LLRF） and tuner system designed by the IHEP RF group, an experimental platform... |
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| StartPage | 261 |
| SubjectTerms | 低电平 国际直线对撞机 实验平台 射频系统 无线电频率 研发 频率锁定 高能物理 |
| Title | A digital low-level radio-frequency system R＆D for a 1.3 GHz nine-cell cavity |
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