Cryomdoule Test Stand Reduced-Magnetic Support Design at Fermilab

Conference · Wed Jun 01 00:00:00 EDT 2016

DOI:https://doi.org/10.18429/JACoW-IPAC2016-WEPMR004· OSTI ID:1271294

McGee, Mike ^[1]; Chandrasekaran, Saravan Kumar ^[1]; Crawford, Anthony ^[1]; Harms, Elvin ^[1]; Leibfritz, Jerry ^[1]; Wu, Genfa ^[1]

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1. Fermilab

In a partnership with SLAC National Accelerator Laboratory (SLAC) and Jefferson Lab, Fermilab will assemble and test 17 of the 35 total 1.3 GHz cryomodules for the Linac Coherent Light Source II (LCLS-II) Project. These devices will be tested at Fermilab's Cryomodule Test Facility (CMTF) within the Cryomodule Test Stand (CMTS-1) cave. The problem of magnetic pollution became one of major issues during design stage of the LCLS-II cryomodule as the average quality factor of the accelerating cavities is specified to be 2.7 x 10¹⁰. One of the possible ways to mitigate the effect of stray magnetic fields and to keep it below the goal of 5 mGauss involves the application of low permeable materials. Initial permeability and magnetic measurement studies regarding the use of 316L stainless steel material indicated that cold work (machining) and heat affected zones from welding would be acceptable.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1271294
• Report Number(s): FERMILAB-CONF-16-150-AD-TD; 1470169
• Resource Relation: Conference: 7th International Particle Accelerator Conference, Busan, Korea, 05/08-05/13/2016
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS