Author: Feng, L.W.
Paper Title Page
TUPB056 Study on a Low Beta High Current Taper Type Superconducting Half Wave Resonator for BISOL 516
 
  • F. Zhu, M. Chen, L.W. Feng, S.W. Quan, F. Wang, H.T.X. Zhong
    PKU, Beijing, People's Republic of China
 
  Funding: Work supported by National Basic Research Project (No. 2014CB845504)
Beijing isotope separation on line type rare ion beam facility (BISOL) for both basic science and applications is a project proposed by China Institute of Atomic Energy and Peking University. Deuteron driver accelerator of BISOL would adopt superconducting half wave resonator (HWR) with low beta and high current. For pre-research of BISOL, a β=0.09 162.5 MHz taper type HWR cavity has been designed for accelerating deuteron beam with several tens of mA. The Design, fabrication, post-processing and room temperature RF measurement of the HWR cavity will be presented in this paper.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2017-TUPB056  
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TUPB099 Vertical Test System for Superconducting RF Cavities at Peking University 631
 
  • D. Zhou, J.E. Chen, W. Cheng, L.W. Feng, J.K. Hao, L. Lin, K.X. Liu, S.W. Quan, F. Wang, H.M. Xie, F. Zhu, D.H. Zhuang
    PKU, Beijing, People's Republic of China
 
  A new vertical test system (VTS) for superconducting RF cavities has been designed and constructed at Peking University. This facility is designed to operate at a temperature of 2K and with pumping speed of 10g/s for helium gas at 30 mbar. In this paper, we present the structure design, modification of 2K system, ambient magnetic field and radiation shielding, LLRF and the test run of this VTS.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2017-TUPB099  
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THXA04 Fabrication, Treatment and Test of Large Grain Cavities 700
 
  • J.K. Hao, J.E. Chen, L.W. Feng, L. Lin, K.X. Liu, S.W. Quan, F. Wang, H.M. Xie, F. Zhu
    PKU, Beijing, People's Republic of China
 
  Development of SRF technology has been included in the project of Soft X-ray FEL (SXFEL) for a hard X-ray FEL plan in China which would be operated in CW mode. Six 9-cell TESLA type cavities as well as several single-cell cavities made of Ningxia large grain niobium material have been fabricated by Peking University for achieving high gradient and high intrinsic quality factor Q0. The measurements of gradient and Q0 have been carried out with a new vertical test system at PKU. The process of fabrication, surface treatment and test results of these large grain cavities will be presented.  
slides icon Slides THXA04 [7.911 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2017-THXA04  
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