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Title: Design, Project Execution, and Commissioning of the 1.8 K Superfluid Helium Refrigeration System for SRF Cryomodule Testing

The Fermilab Cryomodule Test Facility (CMTF) provides a test bed to measure the performance of superconducting radiofrequency (SRF) cryomodules (CM). These SRF components form the basic building blocks of future high intensity accelerators such as the International Linear Collider (ILC) and a Muon Collider. Linde Kryotechnik AG and Linde Cryogenics have designed, constructed and commissioned the superfluid helium refrigerator needed to support SRF component testing at the CMTF Facility. The hybrid refrigerator is designed to operate in a variety of modes and under a wide range of boundary conditions down to 1.8 Kelvin set by CM design. Special features of the refrigerator include the use of warm and cold compression and high efficiency turbo expanders.This paper gives an overview on the wide range of the challenging cooling requirements, the design, fabrication and the commissioning of the installed cryogenic system.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [3]
  1. Linde Kryotechnik AG, Pfungen (Switzerland)
  2. Linde Process Plants, Inc., Tulsa, OK (United States). Linde Cryogenics
  3. Fermi National Accelerator Laboratory, Batavia, IL (United States)
Publication Date:
OSTI Identifier:
1209108
Report Number(s):
FERMILAB-CONF--11-249-AD
Journal ID: ISSN 1875-3892; PII: S1875389215004010
Grant/Contract Number:
AC02-76CHO3000
Type:
Accepted Manuscript
Journal Name:
Physics Procedia
Additional Journal Information:
Journal Volume: 67; Journal Issue: C; Journal ID: ISSN 1875-3892
Publisher:
Elsevier
Research Org:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS