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Ziegler, J.

Paper Title Page
THP013 Various Applications of Dry-Ice Cleaning in the Field of Accelerator Components at DESY 803
 
  • A. Brinkmann, D. Reschke, J. Ziegler
    DESY, Hamburg
  
 

Funding: We acknowledge the support of the European Community Research Infrastructure Activity under FP6 'Structuring the European Research Area' program (CARE, contract number RII-CT-2003-506395
Dry-Ice cleaning offers a dry and waterless cleaning option removing hydrocarbons and particles without residues. Complex excavations like Cu rf gun cavities and Nb multicell cavities in horizontal installation position can be cleaned in an effective way. In the recent past rf gun cathodes and cathode transportboxes could be cleaned satisfactory. A status report will be given.

  
THP015 Open 120C Bake in Argon Atmosphere: A Simplified Approach for Q-Drop Removal 809
 
  • D. Reschke, J. Ziegler
    DESY, Hamburg
  
 

The removal of the Q-drop without field emission by a low temperature (app. 120C) bake procedure is essential in order to achieve the full performance in both electropolished (EP) and chemically etched (BCP) high gradient SCRF Nb accelerator cavities. A simplified procedure applying an open 120C bake out in an Argon atmosphere is presented. First results are compared to the well-established bake-out procedure under vacuum conditions.