SRF2011 - List of Authors (Sulimov, A.A.)

Paper

Title

Page

Update on Module Measurements for the XFEL Prototype Modules

65

D. Kostin, A. Gössel, K. Jensch, W.-D. Möller, A.A. Sulimov
DESY, Hamburg, Germany

The Cryo Module Test Bench (CMTB) at DESY is used since several years for the SRF module tests. Three XFEL prototypes modules, PXFEL1,2,3, were tested on this facility. An update on the SRF modules testing activities since PXFEL1 test is presented.

Poster MOPO010 [0.288 MB]

TUPO046

Results on Large Grain Nine-Cell Cavities at DESY: Gradients up to 45 MV/m after Electropolishing

490

D. Reschke, S. Aderhold, A. Gössel, J. Iversen, S. Karstensen, D. Kostin, G. Kreps, A. Matheisen, W.-D. Möller, F. Schlander, W. Singer, X. Singer, N. Steinhau Kühl, A.A. Sulimov, K. Twarowski
DESY, Hamburg, Germany

Since 2009 a series of eight nine-cell cavities (AC151 – AC158) of TESLA shape fabricated of large grain (LG) niobium material is under preparation and test at DESY. In a first step all cavities were tested after a BCP treatment. In a second step additional electro polishing is applied to all cavities. In this paper the treatment will be discussed and present results will be reported

TUPO048

Commissioning and Upgrade of Automatic Cavity Tuning Machines for the European Xfel

495

J.H. Thie, A. Gössel, J. Iversen, D. Klinke, G. Kreps, W.-D. Möller, C. Mueller, H.-B. Peters, A.A. Sulimov, D. Tischhauser
DESY, Hamburg, Germany
D. Bhogadi, R.H. Carcagno, T.N. Khabiboulline, S. Kotelnikov, A. Makulski, R. Nehring, J.M. Nogiec, W. Schappert, C. Sylvester
Fermilab, Batavia, USA

Four new tuning machines were developed and built in a collaborating effort among FNAL, KEK and DESY. Two machines were commissioned at DESY in a close teamwork with FNAL. For several months, these machines have been used regularly for the automatic tuning of different types of cavities for FLASH. Due to this operating experience and the requirements for the European XFEL cavity Specification, it was necessary to implement the following improvements: improve the precision of the eccentricity measurement; change the tuning sequence according to the different production stages in the cavity fabrication and preparation process; review and change the machine access procedures according to the safety aspects of the EC Directive of Machinery. These improvements required changes in both the mechanical parts developed by DESY and the electronics and software developed by FNAL. We report in detail about the commissioning, our tuning experience and the necessary improvements.

Poster TUPO048 [0.257 MB]

Paper	Title	Page
MOPO010	Update on Module Measurements for the XFEL Prototype Modules	65
	D. Kostin, A. Gössel, K. Jensch, W.-D. Möller, A.A. Sulimov DESY, Hamburg, Germany
	The Cryo Module Test Bench (CMTB) at DESY is used since several years for the SRF module tests. Three XFEL prototypes modules, PXFEL1,2,3, were tested on this facility. An update on the SRF modules testing activities since PXFEL1 test is presented.
	Poster MOPO010 [0.288 MB]

TUPO046	Results on Large Grain Nine-Cell Cavities at DESY: Gradients up to 45 MV/m after Electropolishing	490
	D. Reschke, S. Aderhold, A. Gössel, J. Iversen, S. Karstensen, D. Kostin, G. Kreps, A. Matheisen, W.-D. Möller, F. Schlander, W. Singer, X. Singer, N. Steinhau Kühl, A.A. Sulimov, K. Twarowski DESY, Hamburg, Germany
	Since 2009 a series of eight nine-cell cavities (AC151 – AC158) of TESLA shape fabricated of large grain (LG) niobium material is under preparation and test at DESY. In a first step all cavities were tested after a BCP treatment. In a second step additional electro polishing is applied to all cavities. In this paper the treatment will be discussed and present results will be reported

TUPO048	Commissioning and Upgrade of Automatic Cavity Tuning Machines for the European Xfel	495
	J.H. Thie, A. Gössel, J. Iversen, D. Klinke, G. Kreps, W.-D. Möller, C. Mueller, H.-B. Peters, A.A. Sulimov, D. Tischhauser DESY, Hamburg, Germany D. Bhogadi, R.H. Carcagno, T.N. Khabiboulline, S. Kotelnikov, A. Makulski, R. Nehring, J.M. Nogiec, W. Schappert, C. Sylvester Fermilab, Batavia, USA
	Four new tuning machines were developed and built in a collaborating effort among FNAL, KEK and DESY. Two machines were commissioned at DESY in a close teamwork with FNAL. For several months, these machines have been used regularly for the automatic tuning of different types of cavities for FLASH. Due to this operating experience and the requirements for the European XFEL cavity Specification, it was necessary to implement the following improvements: improve the precision of the eccentricity measurement; change the tuning sequence according to the different production stages in the cavity fabrication and preparation process; review and change the machine access procedures according to the safety aspects of the EC Directive of Machinery. These improvements required changes in both the mechanical parts developed by DESY and the electronics and software developed by FNAL. We report in detail about the commissioning, our tuning experience and the necessary improvements.
	Poster TUPO048 [0.257 MB]