ASSEMBLY, INSTALLATION, AND COMMISSIONING OF THE ATLAS UPGRADE CRYOMODULE

A new cryomodule containing seven low-beta superconducting radio frequency (SRF) cavities has been added to the ATLAS heavy ion linac, providing an additional 15 MV accelerating potential to the existing accelerator. We describe the final stages of cryomodule assembly, commissioning, and installatio...

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Bibliographic Details
Main Authors: Fuerst, J. D., Gerbick, S. M., Kelly, M. P., Kedzie, M., MacDonald, S., Ostroumov, P. N., Pardo, R. C., Sharamentov, S., Zinkann, G. P., Shepard, K. W.
Format: Conference Proceeding
Language:English
Subjects:
ACCELERATORS
ALIGNMENT
ATLAS SUPERCONDUCTING LINAC
BEAMS
CAVITY RESONATORS
COMMISSIONING
COOLING SYSTEMS
CRYOGENICS
DESIGN
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTRONIC EQUIPMENT
ELEMENTS
ENERGY SYSTEMS
FLUIDS
GASES
HEAVY ION ACCELERATORS
HELIUM
HILACS
INSTALLATION
ION BEAMS
LINEAR ACCELERATORS
NITROGEN
NONMETALS
PARTICLE ACCELERATORS
RARE GASES
RESONATORS
RF SYSTEMS
SHIELDS
SOLENOIDS
SUPERCONDUCTING CAVITY RESONATORS
SUPERCONDUCTING DEVICES
SUPERCONDUCTORS
VACUUM SYSTEMS
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Summary:A new cryomodule containing seven low-beta superconducting radio frequency (SRF) cavities has been added to the ATLAS heavy ion linac, providing an additional 15 MV accelerating potential to the existing accelerator. We describe the final stages of cryomodule assembly, commissioning, and installation in the ATLAS accelerator. The clean techniques used to achieve low-particulate rf surfaces are presented, as are the module design features which enable clean assembly and reliable high-gradient operation. The thermal performance of the cryomodule is described, along with performance data for the SRF cavities. Details on subsystem performance including helium and nitrogen systems, vacuum systems, thermal and magnetic shields, slow and fast tuners, and survey/alignment systems are given.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.3422435