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RIS citation export for MOP032: Effect of Low Temperature Infusion Heat Treatments and "2/0" Doping on Superconducting Cavity Performance

TY  - CONF
AU  - Koufalis, P.N.
AU  - Ge, M.
AU  - Liepe, M.
AU  - Maniscalco, J.T.
ED  - Michel, Peter
ED  - Arnold, André
ED  - Schaa, Volker RW
TI  - Effect of Low Temperature Infusion Heat Treatments and "2/0" Doping on Superconducting Cavity Performance
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  - Under specific circumstances, low temperature infusion heat treatments of niobium cavities have resulted in the ubiquitous "Q-rise". This is an increase in quality factor with increasing field strength or equivalently a decrease in the temperature-dependent component of the surface resistance. We investigate the results of various infusion conditions with infusion bake time as a free parameter. To study the very near surface effects of infusion, we employ HF rinsing, light VEP, and oxypolishing to remove several or tens of nm at a time. We present results from RF performance tests of low temperature infusion heat treated niobium cavities, and correlate these with SIMS impurity depth profiles obtained from witness samples. We also present results of a cavity doped at 800 C with the "2/0" recipe.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 118
EP  - 122
KW  - cavity
KW  - ECR
KW  - niobium
KW  - SRF
KW  - background
DA  - 2019/08
PY  - 2019
SN  - 978-3-95450-211-0
DO  - doi:10.18429/JACoW-SRF2019-MOP032
UR  - http://jacow.org/srf2019/papers/mop032.pdf
ER  -