The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF
AU - Maniscalco, J.T.
AU - Liepe, M.
ED - Koscielniak, Shane
ED - Satogata, Todd
ED - Schaa, Volker RW
ED - Thomson, Jana
TI - A Computational Method for More Accurate Measurements of the Surface Resistance in SRF Cavities
J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018
C1 - Vancouver, BC, Canada
T2 - International Particle Accelerator Conference
T3 - 9
LA - english
AB - The principal loss mechanism for superconducting RF cavities in normal operation is Ohmic heating due to the microwave surface resistance in the superconducting surface. The typical method for calculating this field-dependent surface resistance R_{s}(H) from RF measurements of quality factor Q₀ implicitly returns a weighted average of R_{s} over the surface as a function of peak surface magnetic field H, not the true value of R_{s} as a function of the local magnitude of H. In this work we present a computational method to convert a measured Q₀ vs. H_{peak} to a more accurate R_{s} vs. H_{local}, given knowledge about cavity geometry and field distribution.
PB - JACoW Publishing
CP - Geneva, Switzerland
SP - 2458
EP - 2460
KW - cavity
KW - SRF
KW - operation
KW - niobium
KW - radio-frequency
DA - 2018/06
PY - 2018
SN - 978-3-95450-184-7
DO - 10.18429/JACoW-IPAC2018-WEPMF042
UR - http://jacow.org/ipac2018/papers/wepmf042.pdf
ER -