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RIS citation export for TUFUB5: Effects of Static Magnetic Fields on a Low-frequency TEM Class Superconducting Cavity

TY  - CONF
AU  - Ng, M.K.
AU  - Conway, Z.A.
AU  - Kelly, M.P.
AU  - Shepard, K.W.
ED  - Michel, Peter
ED  - Arnold, André
ED  - Schaa, Volker RW
TI  - Effects of Static Magnetic Fields on a Low-frequency TEM Class Superconducting Cavity
J2  - Proc. of SRF2019, Dresden, Germany, 30 June-05 July 2019
CY  - Dresden, Germany
T2  - International Conference on RF Superconductivity
T3  - 19
LA  - english
AB  - Systematic studies on the effect of magnetic fields on a 330 MHz superconducting (TEM-mode) half-wave cavity are presented. The practical application of the results is for a possible future 2 K operation in the ATLAS heavy-ion accelerator at Argonne. The low frequency and the integral stainless steel jacket, rather than titanium, provide important new data for this full production model low-beta cavity. The studies include multi-axial magnetic field measurements near the cavity surface due to ambient and applied fields. Cavity performance under different conditions is measured at temperatures ranging between 1.6 K and 4.5 K. A residual resistance of approximately 5-7 nΩ at 1.6 K is observed. Data suggest that an appreciable fraction arises from losses that are not due to flux trapping.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 370
EP  - 373
KW  - cavity
KW  - niobium
KW  - shielding
KW  - SRF
KW  - superconductivity
DA  - 2019/08
PY  - 2019
SN  - 978-3-95450-211-0
DO  - doi:10.18429/JACoW-SRF2019-TUFUB5
UR  - http://jacow.org/srf2019/papers/tufub5.pdf
ER  -