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Title: Hydrogen Degassing Study During the Heat Treatment of 1.3-GHZ SRF Cavities

Superconducting radio frequency (SRF) cavities undergo a number of processes as part of its manufacturing procedure in order to optimize their performance. Among these processes is a high temperature hydrogen degas heat treatment used to prevent 'Q' decrease. The heat treatment occurs in the processing sequence after either chemically or mechanically polishing the cavity. This paper summarizes the hydrogen measurements during the heat treatment of a sample of chemically and mechanically polished single-cell and nine-cell 1.3-GHz cavities. The hydrogen measurements are analyzed according the polishing method, the polishing history, the amount of time that the cavity was baked at 800°C, and the temperature ramp rate.
Authors:
 [1] ;  [2] ;  [1] ;  [1]
  1. Fermilab
  2. IBS, Daejeon
Publication Date:
OSTI Identifier:
1295408
Report Number(s):
FERMILAB-CONF-13-452-TD
1481140
DOE Contract Number:
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: 1st North American Particle Accelerator Conference, Pasadena, CA, USA, 09/29-10/04/2013
Research Org:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS