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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/53961
Record Status
Checked
Record Id
53961
Title
COOL-IT: A HEAT EXCHANGER SYSTEM TO PROVIDE GASEOUS HELIUM AT INTERMEDIATE TEMPERATURES FOR SRF LINAC
Contributors
SM Pattalwar (ASTeC, STFC Daresbury Lab.)
,
R Bate (ASTeC, STFC Daresbury Lab.)
Abstract
ALICE, a prototype accelerator developed at the Daresbury laboratory UK, has successfully demonstrated the energy‐recovery technique by circulating the electron beam to more than 20 MeV. At the heart of ALICE is a superconducting linac operating at 2 K. At high average‐current operation the performance of Superconducting RF (SRF) cavities suffer from instabilities due to the generation of higher‐order modes (HOM) as well as microphonics. HOMs are extracted out of the cavities using HOM absorbers operating at 80 K. This, however, increases the demand for cooling power at intermediate temperatures, i.e. at 80 K and 5 K, by more than an order of magnitude. In order to provide this extra cooling capacity with gaseous helium a new cryogenic system, ‘COOL‐IT,’ (System for cooling to intermediate temperatures) is being developed. It will provide two streams of helium gases at 80 K and 5 K. COOL‐IT uses a set of heat exchangers cooled by liquid helium and liquid nitrogen to generate two cold streams. It will be integrated into the existing cryo‐system for ALICE for automatic operation. This paper describes the COOL‐IT system in detail.
Organisation
ASTeC
,
CI
,
STFC
Keywords
Funding Information
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Language
English (EN)
Type
Details
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Year
Journal Article
AIP Conf Proc
1218, no. 1 (2010): 595.
https://doi.org/10.1063/1.3422407
2010
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