Helium refrigeration considerations for cryomodule design

Journal Article · Wed Jan 29 00:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4860928· OSTI ID:22262765

Ganni, V.; Knudsen, P. ^[1]

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1. Thomas Jefferson National Accelerator Facility (JLab), Newport News, VA 23606 (United States)

Many of the present day accelerators are based on superconducting radio frequency (SRF) cavities, packaged in cryo-modules (CM), which depend on helium refrigeration at sub-atmospheric pressures, nominally 2 K. These specialized helium refrigeration systems are quite cost intensive to produce and operate. Particularly as there is typically no work extraction below the 4.5-K supply, it is important that the exergy loss between this temperature level and the CM load temperature(s) be minimized by the process configuration choices. This paper will present, compare and discuss several possible helium distribution process arrangements to support the CM loads.

• OSTI ID: 22262765
• Journal Information: AIP Conference Proceedings, Vol. 1573, Issue 1; Conference: Cryogenic engineering conference, Anchorage, AK (United States), 17-21 Jun 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
43 PARTICLE ACCELERATORS
ACCELERATORS
ATMOSPHERIC PRESSURE
COMPARATIVE EVALUATIONS
DESIGN
HELIUM
REFRIGERATION