THAA004

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URL	https://doi.org/10.18429/JACoW-LINAC2024-THAA004
Title	First results from two Nb3Sn cavities assembled in a CEBAF quarter cryomodule
Authors	G. Eremeev, B. Tennis, S. Posen, S. Cheban Fermi National Accelerator Laboratory A. Reilly, G. Ciovati, J. Fischer, K. Macha, M. Drury, M. McCaughan, R. Rimmer, U. Pudasaini Thomas Jefferson National Accelerator Facility M. Weaks Jefferson Lab
Abstract	Two 1.5 GHz CEBAF C75-shape 5-cell accelerator cavities were coated with Nb3Sn film using the vapor diffusion technique at Fermilab and Jefferson Lab coating facilities. Both cavities were measured at 4 K and 2 K in the vertical dewar test in each lab, then assembled into a CEBAF quarter cryomodule at Jefferson Lab. The cryomodule was tested in 4 K and 2 K in the CryoModule Test Facility at Jefferson Lab. RF test results for both cavities in the cryomodule are similar to those of the qualification test in VTS, with one cavity reaching Eacc = 7.5 MV/m and the other - 13 MV/m at 4 K. In this contribution we discuss the progress with assembling Nb3Sn cavities in a cryomodule and the first results from cryomodule testing.
Paper	download: THAA004.pdf
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Conference	32nd Linear Accelerator Conference (LINAC2024)
Series
Location	Chicago, IL, USA
Date	25-30 Aug 2024
Publisher	JACoW Publishing, Geneva, Switzerland
Editorial Board	Kelly Jaje (ANL), Kip Bishofberger (LANL), Ryan Brody (ANL), Gustavo Bruno (ANL), Jan Chrin (PSI), Cathy Eyberger (ANL), Maggie Montes (SLAC), Denise Skiadopoulos (ANL), Ling Wang (MSU/FRIB), Kent Wootton (ANL)
Online ISBN	978-3-95450-219-6
Online ISSN	2226-0366
Received	23 August 2024
Revised	24 September 2024
Accepted	24 September 2024
Issued	23 October 2024
DOI	10.18429/JACoW-LINAC2024-THAA004
Pages	604-607
Copyright	Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.