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RIS citation export for SUPFDV007: Magnetic Field Penetration of Niobium Thin Films Produced by the ARIES Collaboration

AU  - Turner, D.A.
AU  - Burt, G.
AU  - Chyhyrynets, E.
AU  - Dumbell, K.D.
AU  - Junginger, T.
AU  - Leith, S.B.
AU  - Malyshev, O.B.
AU  - Medvids, A.
AU  - Onufrijevs, P.
AU  - Pira, C.
AU  - Ries, R.
AU  - Seiler, E.
AU  - Sublet, A.
AU  - Valizadeh, R.
AU  - Vogel, M.
AU  - Wilson, J.T.G.
ED  - Saito, Kenji
ED  - Xu, Ting
ED  - Sakamoto, Naruhiko
ED  - Lesage, Ana
ED  - Schaa, Volker R.W.
TI  - Magnetic Field Penetration of Niobium Thin Films Produced by the ARIES Collaboration
J2  - Proc. of SRF2021, East Lansing, MI, USA, 28 June-02 July 2021
CY  - East Lansing, MI, USA
T2  - International Conference on RF Superconductivity
T3  - 20
LA  - english
AB  - Superconducting (SC) thin film coatings on Cu substrates are already widely used as an alternative to bulk Nb SRF structures. Using Cu allows improved thermal stability compared to Nb due to having a greater thermal conductivity. Niobium thin film coatings also reduce the amount of Nb required to produce a cavity. The performance of thin film Nb cavities is not as good as bulk Nb cavities. The H2020 ARIES WP15 collaboration studied the impact of substrate polishing and the effect produced on Nb thin film depositions. Multiple samples were produced from Cu and polished with various techniques. The polished Cu substrates were then coated with a Nb film at partner institutions. These samples were characterised with surface characterisation techniques for film morphology and structure. The SC properties were studied with 2 DC techniques, a vibrating sample magnetometer (VSM) and a magnetic field penetration (MFP) facility. The results conclude that both chemical polishing and electropolishing produce the best DC properties in the MFP facility. A comparison between the VSM and the MFP facility can be made for 10 micron thick samples, but not for 3 micron thick samples.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 77
EP  - 81
KW  - cavity
KW  - dipole
KW  - site
KW  - controls
DA  - 2022/10
PY  - 2022
SN  - 2673-5504
SN  - 978-3-95450-233-2
DO  - doi:10.18429/JACoW-SRF2021-SUPFDV007
UR  - https://jacow.org/srf2021/papers/supfdv007.pdf
ER  -