Design of Super-Fluid Helium Cooling Cycle and Optimization of Operating Temperature of 1.3 GHz SRF Cavity Systems for PKU-SCAF

DU Hong-peng; WANG Li; CHEN An-bin

Dec. 2006

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Article Navigation > Nuclear Power Engineering > 2006 > 27(6): 27-32

DU Hong-peng, WANG Li, CHEN An-bin. Design of Super-Fluid Helium Cooling Cycle and Optimization of Operating Temperature of 1.3 GHz SRF Cavity Systems for PKU-SCAF[J]. Nuclear Power Engineering, 2006, 27(6): 27-32.

Citation:

DU Hong-peng, WANG Li, CHEN An-bin. Design of Super-Fluid Helium Cooling Cycle and Optimization of Operating Temperature of 1.3 GHz SRF Cavity Systems for PKU-SCAF[J]. Nuclear Power Engineering, 2006, 27(6): 27-32.

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Design of Super-Fluid Helium Cooling Cycle and Optimization of Operating Temperature of 1.3 GHz SRF Cavity Systems for PKU-SCAF

Institute of Cryogenics and Superconductivity Technology, Harbin Institute of Technology, Harbin 150080, China

Received Date: 2005-05-22
Rev Recd Date: 2005-07-30

Available Online: 2025-07-29

Abstract

Abstract

Due to the exponential dependence of the BCS surface resistance with temperature,reducing the operating temperature of SRF cavity will result in lower radio-frequency loss for the cavity,but the effi-ciency of the cryogenic plant reduces drastically too.In this paper,the saturated super-fluid helium cooling cycles and operation temperature for a 1.3GHz superconducting resonance frequency cavity system were analyzed in terms of improving the refrigeration efficiency of SRF cooling system and lowering the cavity dynamic loss.The optimized operation temperature for the 1.3GHz SRF cavity is around 1.95K.The suitable cooling cycle is proposed finally.
- Super-fluid helium cooling cycle,
- SRF cavity,
- Radio-Frequency losses,
- Operation temperature,
- Refrigeration efficiency