Development of RF windows for 650 MHz multibeam klystron

Sheng-Chang Wang; Zu-Sheng Zhou; Zhi-Jun Lu; Zhi-Qing Liu; Shigeki Fukuda; Yu Liu; Jing-Yi Li; Wei-Ming Li

doi:10.1007/s41365-023-01294-0

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Development of RF windows for 650 MHz multibeam klystron

ACCELERATOR, RAY TECHNOLOGY AND APPLICATIONS | Updated：2023-10-13

- Development of RF windows for 650 MHz multibeam klystron
- Nuclear Science and Techniques Vol. 34, Issue 9, Article number: 136(2023)
- Affiliations：
  
  1.National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
  2.Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;
  3.Kunshan Guo Li Electronic Technology Co., Ltd., Kunshan 215300, China
  4.High Energy Accelerator Research Organization, KEK 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
- Author bio：
  
  * wangshengchang@hotmail.com,
  zhouzs@ihep.ac.cn
- Funds：
- DOI：10.1007/s41365-023-01294-0
  CLC：
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Sheng-Chang Wang, Zu-Sheng Zhou, Zhi-Jun Lu, et al. Development of RF windows for 650 MHz multibeam klystron. [J]. Nuclear Science and Techniques 34(9):136(2023)
DOI：

Sheng-Chang Wang, Zu-Sheng Zhou, Zhi-Jun Lu, et al. Development of RF windows for 650 MHz multibeam klystron. [J]. Nuclear Science and Techniques 34(9):136(2023) DOI： 10.1007/s41365-023-01294-0.

摘要

Abstract

Radio frequency windows are developed and evaluated for a 650 MHz continuous-wave multibeam klystron. Thin-pillbox windows with alumina and beryllia disks are designed with an average RF power of CW 400 kW. Results of a cold test and tuning procedures are described. The final measured S11 curves under the required bandwidth are less than -32.0 and -26.9 dB for alumina and beryllia windows, respectively. The windows are tested up to CW 143 kW for traveling waves and CW 110 kW for standing waves using a solid-state amplifier as an RF power source. Multipactor simulations for windows and benchmark studies for the thermal analysis of ceramic disks are introduced.

关键词

Keywords

RF windowHigh-power testMBK

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Department of Engineering Physics, Tsinghua University

Key Laboratory of Particle and Radiation Imaging (Tsinghua University), Ministry of Education

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