Performance of the CEBAF Prototype Cryomodule Renascence.

Reece, C. E. ; Daly, E. F. ; Davis, G. K. ; Drury, M. ; Hicks, W. R. ; Preble, J. ; Wang, H.

Technical Information Center Oak Ridge Tennessee

关键词: CEBAF accelerator;    Superconducting cavity resonators;    Cryogenics;    Linear accelerators;    Performance;   

RP-ID  :  DE2008923385

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The prototype cryomodule Renascence was constructed as an energy building block for securing 6 GeV operation of CEBAF and to validate design elements for future CEBAF upgrade modules. These elements include the new HG and LL 7-cell cavity designs and a new tuner design. Issues were identified during initial testing in 2005. The module has been reworked to address the issues with thermal stability, component breakage, and tuner motion. In addition, opportunity was taken to employ upgraded cleaning and assembly techniques for the cavity string. The HOM coupler heating issue was resolved, and seven of the eight cavities in the cryomodule have run stably at an average of 20 MV/m CW. The cryogenic, rf, and mechanical performance of the cryomodule are presented. Commissioning in CEBAF has just been completed in October 2007.