002846176 001__ 2846176
002846176 003__ SzGeCERN
002846176 005__ 20230114231745.0
002846176 0247_ $$2DOI$$9JACOW$$a10.18429/JACoW-SRF2021-TUPTEV009
002846176 0248_ $$aoai:cds.cern.ch:2846176$$pcerncds:FULLTEXT$$pcerncds:CERN:FULLTEXT$$pcerncds:CERN
002846176 035__ $$9https://inspirehep.net/api/oai2d$$aoai:inspirehep.net:2174321$$d2023-01-13T14:13:10Z$$h2023-01-14T05:00:02Z$$mmarcxml
002846176 035__ $$9Inspire$$a2174321
002846176 041__ $$aeng
002846176 100__ $$aVega Cid, [email protected]$$uCERN
002846176 245__ $$9JACOW$$aSeamless 1.3 GHz Copper Cavities for Nb Coatings: Cold Test Results of Two Different Approaches
002846176 260__ $$c2022
002846176 300__ $$a5 p
002846176 520__ $$9JACOW$$aA necessary condition for high SRF performances in thin film coated cavities is the absence of substrate defects. For instance, in the past, defects originated around electron beam welds in high magnetic field areas have been shown to be the cause of performance limitations in Nb/Cu cavities. Seamless cavities are therefore good candidates to allow an optimization of the coating parameters without the pitfalls of a changing substrate. In this work, we present the first results of two different methods to produce seamless cavities applied to 1.3 GHz copper single cells coated with thin Nb films by means of HIPIMS. A first method consists in electroplating the copper resonator on precisely machined aluminum mandrels, which are then dissolved chemically. As an alternative and a cross check, one cavity was machined directly from the bulk. Both cavities were coated with HIPIMS Nb films using the same coating parameters and the SRF performance was measured down to 1.8 K with a variable coupler to minimize the measurement uncertainty.
002846176 540__ $$3publication$$aCC-BY-4.0$$bJACOW$$uhttps://creativecommons.org/licenses/by/4.0
002846176 542__ $$3publication$$g2022
002846176 65017 $$2SzGeCERN$$aAccelerators and Storage Rings
002846176 6531_ $$9author$$acavity
002846176 6531_ $$9author$$aSRF
002846176 6531_ $$9author$$aniobium
002846176 6531_ $$9author$$asuperconducting-RF
002846176 6531_ $$9author$$aISOL
002846176 690C_ $$aARTICLE
002846176 690C_ $$aCERN
002846176 700__ $$aAtieh, [email protected]$$uCERN
002846176 700__ $$aFerreira, [email protected]$$uCERN
002846176 700__ $$aLaín-Amador, [email protected]$$uCERN
002846176 700__ $$aLeith, [email protected]$$uCERN
002846176 700__ $$aPereira Carlos, [email protected]$$uCERN
002846176 700__ $$aRosaz, [email protected]$$uCERN
002846176 700__ $$aScibor, [email protected]$$uCERN
002846176 700__ $$aVenturini Delsolaro, [email protected]$$uCERN
002846176 700__ $$aVidal García, [email protected]$$uCERN$$uMadrid, CIEMAT$$vCIEMAT, 28040 Madrid, Spain
002846176 773__ $$c498-502$$pJACoW SRF$$qSRF2021$$v2021$$wC21-06-28.5$$y2022
002846176 8564_ $$82417887$$s1157049$$uhttps://cds.cern.ch/record/2846176/files/document.pdf$$yFulltext
002846176 960__ $$a13
002846176 962__ $$b2839869$$k498-502$$nonline20210628
002846176 980__ $$aARTICLE
002846176 980__ $$aConferencePaper