CERN Accelerating science

Article
Title	Successful RF and Cryogenic Tests of the SOLEIL Cryomodule
Author(s)	Marchand, Patrick ; Arnaudon, Luca ; Bosland, Pierre ; Brédy, Philippe ; Brunner, O ; Chel, Stéphane ; Devanz, Guillaume ; Losito, Roberto ; Louvet, M ; Louvet-Monsanglant, Marc ; Maesen, Pierre ; Montesinos, E ; Pechaud, G ; Prax, Maurice ; Tavakoli, Keihan ; Thomas-Madec, Catherine
Affiliation	(CEA/DSM/DAPNIA, Gif-sur-Yvette) ; (CERN) ; (SOLEIL, Gif-sur-Yvette)
Publication	2005
In:	21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.3438
Subject category	Accelerators and Storage Rings
Abstract	In the Storage Ring (SR) of the Synchrotron SOLEIL light source, two cryomodules will provide the maximum power of 600 kW required at the nominal energy of 2.75 GeV with the full beam current of 500 mA and all the insertion devices. A cryomodule prototype, housing two 352 MHz superconducting single-cell cavities with strong damping of the Higher Order Modes has been built and successfully tested in the ESRF. Even though the achieved performance (3 MV and 380 kW) does meet the SOLEIL requirement for the first year of operation, it was decided to upgrade the cryomodule prototype before its implementation in the SR. Modifications of the internal cryogenic system as well as the input power and dipolar HOM couplers required complete disassembling, reassembling and testing of the cryomodule, which were carried out at CERN. This refurbishment program, which was achieved in the framework of a collaboration between SOLEIL, CEA and CERN, is reported in this paper. A second cryomodule, similar to the modified prototype, is under manufacturing and will be implemented in the SR by the end of 2006.
Copyright/License	publication: (License: CC-BY)