Paper | Title | Page |
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MOP072 | FRIB Solenoid Package in Cryomodule and Local Magnetic Shield | 235 |
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Funding: U.S. Department of Energy Office of Science under Cooperative Agreement DE -SC0000661 FRIB cryomodule design has a feature: solenoid package(s) and local magnetic shields in the cryomodule. In this design, exposing SRF cavities to a very strong fringe field from the solenoid is concerned. A tangled issue between solenoid package design and magnetic shield one has to be resolved. FRIB made intensive studies, designed, prototyped, validated the solenoid packages and magnetic shields, and finally certified them in the bunker test. This paper reports activity results, and LS1 commissioning results in FRIB tunnel. This is a FRIB success story. |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2019-MOP072 | |
About • | paper received ※ 24 June 2019 paper accepted ※ 14 August 2019 issue date ※ 14 August 2019 | |
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THP061 | Performance of FRIB Production Quarter-Wave and Half-Wave Resonators in Dewar Certification Tests | 1023 |
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The Facility for Rare Isotope Beams (FRIB) is under construction at Michigan State University (MSU). The FRIB superconducting driver linac will accelerate ion beams to 200 MeV per nucleon. The driver linac requires 104 quarter-wave resonators (QWRs, β = 0.041 and 0.085) and 220 half-wave resonators (HWRs, β = 0.29 and 0.54). The jacketed resonators are Dewar tested at MSU before installation into cryomodules. The cryomodules for β = 0.041, 0.085, and 0.29 have been completed and certified; 88% of the β = 0.54 HWRs have been certified (as of March 2019). Beam commissioning of the QWR cryomodules is in progress. The Dewar certification tests have provided valuable statistics on the performance of production QWRs and HWRs at 4.3 K and 2 K and on performance limits. Results will be presented. | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2019-THP061 | |
About • | paper received ※ 12 July 2019 paper accepted ※ 13 August 2019 issue date ※ 14 August 2019 | |
Export • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | |