Precise calibration of cavity forward and reflected signals using low-level radio-frequency system
文献类型：期刊论文
| 作者 | Ma, Jin-Ying1; Qiu, Feng1,2; Shi, Long-Bo1 ; Zhu, Zheng-Long1; Jiang, Tian-Cai1; Xue, Zong-Heng1; Jin, Ke-An1; Chen, Qi1; Xu, Cheng-Ye1; Ding, Xing-Hao2
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| 刊名 | NUCLEAR SCIENCE AND TECHNIQUES
 |
| 出版日期 | 2022 |
| 卷号 | 33期号:1页码:9 |
| ISSN号 | 1001-8042 |
| 关键词 | Forward and reflected signals Measurement Calibration |
| DOI | 10.1007/s41365-022-00985-4 |
| 通讯作者 | Qiu, Feng(qiufeng@impcas.ac.cn) |
| 英文摘要 | Precise measurements of the cavity forward (V-f) and reflected signals (V-r) are essential for characterizing other key parameters such as the cavity detuning and for ward power. In practice, it is challenging to measure V-f and V-r precisely because of cross talk between the forward and reflected channels (e.g., coupling between the cavity reflected and forward signals in a directional coupler with limited directivity). For DESY, a method based on the cavity differential equation was proposed to precisely calibrate the actual V-f and V-r. In this study, we verified the validity and practicability of this approach for the Chinese ADS front-end demo superconducting linac (CAFe) facility at the Institute of Modern Physics and a compact energy recovery linac (cERL) test machine at KEK. At the CAFe facility, we successfully calibrated the actual V-f signal using this method. The result demonstrated that the directivity of directional couplers might seriously affect the accuracy of V-f measurement. At the cERL facility, we calibrated the Lorentz force detuning (LFD) using the actual V-f. Our study confirmed that the precise calibration of V-f significantly improves the accuracy of the cavity LFD measurement. |
| WOS关键词 | DESIGN |
| 资助项目 | project of ``studies of intelligent LLRF control algorithms for superconducting RF cavities[E129851YR0] |
| WOS研究方向 | Nuclear Science & Technology ; Physics |
| 语种 | 英语 |
| 出版者 | SPRINGER SINGAPORE PTE LTD |
| WOS记录号 | WOS:000743542500002 |
| 资助机构 | project of ``studies of intelligent LLRF control algorithms for superconducting RF cavities |
| 源URL | [http://119.78.100.186/handle/113462/142316]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Qiu, Feng |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Jin-Ying,Qiu, Feng,Shi, Long-Bo,et al. Precise calibration of cavity forward and reflected signals using low-level radio-frequency system[J]. NUCLEAR SCIENCE AND TECHNIQUES,2022,33(1):9. |
| APA | Ma, Jin-Ying.,Qiu, Feng.,Shi, Long-Bo.,Zhu, Zheng-Long.,Jiang, Tian-Cai.,...&He, Yuan.(2022).Precise calibration of cavity forward and reflected signals using low-level radio-frequency system.NUCLEAR SCIENCE AND TECHNIQUES,33(1),9. |
| MLA | Ma, Jin-Ying,et al."Precise calibration of cavity forward and reflected signals using low-level radio-frequency system".NUCLEAR SCIENCE AND TECHNIQUES 33.1(2022):9. |
入库方式： OAI收割
来源：近代物理研究所
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