Study on the 1.3 GHz low loss shape superconducting cavities at IHEP

  • As part of the international research program on the superconducting cavity for the International Linear Collider (ILC) R&D on the 1.3 GHz low loss superconducting cavities has been carried out at the Institute of High Energy Physics (IHEP) since 2005. A design of 1.3 GHz low loss cavity shape was proposed and six single-cell cavities of different niobium material were successfully fabricated with standard technology. In this study our priority was on large grain (LG) cavities. The two LG cavities were treated with complete procedures of surface treatments based on chemical polishing (CP) without electro polishing (EP) at IHEP. The two LG cavities and a fine grain cavity were sent to KEK for vertical testing. All the three cavities reached accelerating gradients higher than 35 MV/m and the maximum gradient of 40.27 MV/m was achieved in the LG cavity. This paper presents the process of the vertical RF tests and the comparison of the LG and fine grain cavities's performance.

  • [1] . Nan Phinney et al. ILC RDR Accelerator. 20072. Saito K. Gradient Yield Improvement Efforts for Single and Multi-cells and Progress for Very High Gradient Cavities.Proc. SRF2007. Beijing, 20073. Sekutowicz J et al. Design of a Low Loss SRF. Cavity forthe ILC. Proc. PAC05. Knoxville, 20054. GENG R L et al. High Gradient Sudies for ILC with Single-cell Re-entrant Shape and Ellipictical Shape Cavities Madeof Fine-grain and Large-grain Niobium. Proc. PAC07. Al-buquerque, 20075. GE Ming-Qi et al. HEP NP, 2006, 30(04): 345-358 (inChinese)6. ZONG Z G, GAO J et al. Research and Development of 1.3 GHz Low Loss Cavities Made of China Large Grain at IHEP. Proc. SRF2007. Beijing 20077. ZONG Zhan-Guo, GAO Jie et al. Chinese Physics C(HEP NP), 2008, 32(02): 151-1558. Ciovati G, Kneisel P. Proc. of the Workshop on Pushingthe Limits of RF superconductivity, Argonne report ANL-05/10. March 2005. 74
  • [1] . Nan Phinney et al. ILC RDR Accelerator. 20072. Saito K. Gradient Yield Improvement Efforts for Single and Multi-cells and Progress for Very High Gradient Cavities.Proc. SRF2007. Beijing, 20073. Sekutowicz J et al. Design of a Low Loss SRF. Cavity forthe ILC. Proc. PAC05. Knoxville, 20054. GENG R L et al. High Gradient Sudies for ILC with Single-cell Re-entrant Shape and Ellipictical Shape Cavities Madeof Fine-grain and Large-grain Niobium. Proc. PAC07. Al-buquerque, 20075. GE Ming-Qi et al. HEP NP, 2006, 30(04): 345-358 (inChinese)6. ZONG Z G, GAO J et al. Research and Development of 1.3 GHz Low Loss Cavities Made of China Large Grain at IHEP. Proc. SRF2007. Beijing 20077. ZONG Zhan-Guo, GAO Jie et al. Chinese Physics C(HEP NP), 2008, 32(02): 151-1558. Ciovati G, Kneisel P. Proc. of the Workshop on Pushingthe Limits of RF superconductivity, Argonne report ANL-05/10. March 2005. 74
  • 加载中

Get Citation
ZONG Zhan-Guo, GAO Jie, GU Jun, SUN Hong, ZHAO Fa-Cheng, GE Ming-Qi, XU Qing-Jin, ZHAI Ji-Yuan, YUAN Hong, CHEN Jin-Zhe, XIE Wei-Ping, LIU Li-Qiang and ZHANG Liang. Study on the 1.3 GHz low loss shape superconducting cavities at IHEP[J]. Chinese Physics C, 2009, 33(6): 444-449. doi: 10.1088/1674-1137/33/6/008
ZONG Zhan-Guo, GAO Jie, GU Jun, SUN Hong, ZHAO Fa-Cheng, GE Ming-Qi, XU Qing-Jin, ZHAI Ji-Yuan, YUAN Hong, CHEN Jin-Zhe, XIE Wei-Ping, LIU Li-Qiang and ZHANG Liang. Study on the 1.3 GHz low loss shape superconducting cavities at IHEP[J]. Chinese Physics C, 2009, 33(6): 444-449.  doi: 10.1088/1674-1137/33/6/008 shu
Milestone
Received: 2008-08-22
Revised: 2008-11-04
Article Metric

Article Views(3258)
PDF Downloads(745)
Cited by(0)
Policy on re-use
To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

Study on the 1.3 GHz low loss shape superconducting cavities at IHEP

    Corresponding author: ZONG Zhan-Guo,

Abstract: 

As part of the international research program on the superconducting cavity for the International Linear Collider (ILC) R&D on the 1.3 GHz low loss superconducting cavities has been carried out at the Institute of High Energy Physics (IHEP) since 2005. A design of 1.3 GHz low loss cavity shape was proposed and six single-cell cavities of different niobium material were successfully fabricated with standard technology. In this study our priority was on large grain (LG) cavities. The two LG cavities were treated with complete procedures of surface treatments based on chemical polishing (CP) without electro polishing (EP) at IHEP. The two LG cavities and a fine grain cavity were sent to KEK for vertical testing. All the three cavities reached accelerating gradients higher than 35 MV/m and the maximum gradient of 40.27 MV/m was achieved in the LG cavity. This paper presents the process of the vertical RF tests and the comparison of the LG and fine grain cavities's performance.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return