162.5 MHz高功率耦合器测试腔体设计
- 陈龙1,2,
- 张生虎1, ,
- 李永明1,
- 蒋天才1,
- 王若旭1,
- 李春龙1,
- 皇世春1,
- 谭腾1,
- 吴安东1,2,
- 杨磊1,2,
- 潘峰1,2,
- 刘新萌1,2
- 1. 中国科学院近代物理研究所, 兰州 730000;
- 2. 中国科学院大学, 北京 100049
基金项目:
国家重点基础研究发展计划（2014CB845504）；中国科学院青年创新促进会资助项目（2017455）
作者简介:
陈龙(1992-),男,湖北随州人,硕士,从事核能与核技术工程研究;E-mail:chenlong15@impcas.ac.cn
- 收稿日期:
2018-01-19
- 修回日期:
2018-03-09
- 刊出日期:
2018-06-20
摘要: 功率耦合器是粒子加速腔射频功率馈送的关键部件。耦合器在安装至加速腔之前，必须进行常温高功率测试和锻炼，以检验加工工艺和设计指标，提高其射频性能。详细介绍了中国科学院近代物理研究所ADS25 MeV加速器样机162.5 MHz耦合器测试平台的改进设计。针对原有接触式测试锻炼方式的不足，提出非接触式测试锻炼方案。对耦合器测试锻炼过程进行了物理抽象，采用理论模拟的方法分析测试腔体功率传输。基于分析结果设计了低损耗、宽通带、多用途的非接触式耦合器测试腔体。该腔体可实现20 kW测试功率下60 W左右的腔体损耗和15 MHz-3 dB带宽。
Fundamental power couplers (FPC) are crucial components for feeding RF power to the accelerating cavities. Before being installed on the accelerating cavity, a coupler must be tested and conditioned at room temperature to check its fabrication quality, to verify its design specifications, and improve its RF performance. This paper thoroughly introduced the design of a test stand for the 162.5 MHz coupler of ADS 25 MeV demo facility at IMP, CAS. In order to overcome the shortcomings of the original contacting test method, a noncontacting test scheme was proposed. A physical model was built for the the coupler test and the test cavity power transmission was analyzed theoretically. Based on the analysis results, a low-loss, wide-passband and multipurpose non-contacting coupler test cavity was designed. With the new test cavity, a power loss of around 60W and a -3 dB bandwidth of 15 MHz at a test power of 20 kW was achieved.
Design of a Test Cavity for 162.5 MHz FPC
- CHEN Long
1,2,
- ZHANG Shenghu
1, ,
- LI Yongming
1,
- JIANG Tiancai
1,
- WANG Ruoxu
1,
- LI Chunlong
1,
- HUANG Shichun
1,
- TAN Teng
1,
- WU Andong
1,2,
- YANG Lei
1,2,
- PAN Feng
1,2,
- LIU Xinmeng
1,2
- 1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;
- 2. University of Chinese Academy of Sciences, Beijing 100049, China
Funds:
National Key Basic Research Program of China (973 Program) (2014CB845504); Youth Innovation Promotion Association, CAS (2017455)
- Received Date:
2018-01-19
- Rev Recd Date:
2018-03-09
- Publish Date:
2018-06-20
Abstract: Fundamental power couplers (FPC) are crucial components for feeding RF power to the accelerating cavities. Before being installed on the accelerating cavity, a coupler must be tested and conditioned at room temperature to check its fabrication quality, to verify its design specifications, and improve its RF performance. This paper thoroughly introduced the design of a test stand for the 162.5 MHz coupler of ADS 25 MeV demo facility at IMP, CAS. In order to overcome the shortcomings of the original contacting test method, a noncontacting test scheme was proposed. A physical model was built for the the coupler test and the test cavity power transmission was analyzed theoretically. Based on the analysis results, a low-loss, wide-passband and multipurpose non-contacting coupler test cavity was designed. With the new test cavity, a power loss of around 60W and a -3 dB bandwidth of 15 MHz at a test power of 20 kW was achieved.
陈龙, 张生虎, 李永明, 蒋天才, 王若旭, 李春龙, 皇世春, 谭腾, 吴安东, 杨磊, 潘峰, 刘新萌. 162.5 MHz高功率耦合器测试腔体设计[J]. 原子核物理评论, 2018, 35(2): 154-158. doi: 10.11804/NuclPhysRev.35.02.154
| 引用本文: |
陈龙, 张生虎, 李永明, 蒋天才, 王若旭, 李春龙, 皇世春, 谭腾, 吴安东, 杨磊, 潘峰, 刘新萌. 162.5 MHz高功率耦合器测试腔体设计[J]. 原子核物理评论, 2018, 35(2): 154-158. doi: 10.11804/NuclPhysRev.35.02.154
|
CHEN Long, ZHANG Shenghu, LI Yongming, JIANG Tiancai, WANG Ruoxu, LI Chunlong, HUANG Shichun, TAN Teng, WU Andong, YANG Lei, PAN Feng, LIU Xinmeng. Design of a Test Cavity for 162.5 MHz FPC[J]. Nuclear Physics Review, 2018, 35(2): 154-158. doi: 10.11804/NuclPhysRev.35.02.154
| Citation: |
CHEN Long, ZHANG Shenghu, LI Yongming, JIANG Tiancai, WANG Ruoxu, LI Chunlong, HUANG Shichun, TAN Teng, WU Andong, YANG Lei, PAN Feng, LIU Xinmeng. Design of a Test Cavity for 162.5 MHz FPC[J]. Nuclear Physics Review, 2018, 35(2): 154-158. doi: 10.11804/NuclPhysRev.35.02.154
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