JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF
AU - Smith, L.G.P.
AU - Burt, G.
AU - Junginger, T.
AU - Malyshev, O.B.
AU - Turner, D.A.
ED - Saito, Kenji
ED - Xu, Ting
ED - Sakamoto, Naruhiko
ED - Schaa, Volker R.W.
ED - Thomas, Paul W.
TI - Investigation, Using Nb Foils to Characterise the Optimal Dimensions of Samples Measured by the Magnetic Field Penetration Facility
J2 - Proc. of SRF2023, Grand Rapids, MI, USA, 25-30 June 2023
CY - Grand Rapids, MI, USA
T2 - International Conference on RF Superconductivity
T3 - 21
LA - english
AB - SRF cavities made of bulk Nb are reaching their theoretical limits in the maximum accelerating gradient, E_{acc}, where E_{acc} is limited by the maximum magnetic field, Bmax, that can be applied on the surface of the accelerating cavity wall. To increase E_{acc}, Bmax, which can be applied to the surface, must also be increased. The A15 materials or multilayer structures are the potential solution to increase Bmax. Since coating and RF testing of full size RF cavities is both expensive and time consuming, one need to evaluate new ideas in superconducting thin films quickly and at low cost. A magnetic field penetration experiment has been designed and built at Daresbury Laboratory to test small superconducting samples. The facility produces a parallel DC magnetic field, which applied from one side of the sample to the other similar to that in an RF cavity. The facility applies an increasing magnetic field at a set temperature to determine the field of full flux penetration which can give an insight into the quality and structure of the superconducting structure. The facility has been characterised using both type I and II superconductors and is now producing results from novel materials.
PB - JACoW Publishing
CP - Geneva, Switzerland
SP - 88
EP - 91
KW - cavity
KW - SRF
KW - experiment
KW - ECR
KW - niobium
DA - 2023/09
PY - 2023
SN - 2673-5504
SN - 978-3-95450-234-9
DO - doi:10.18429/JACoW-SRF2023-MOPMB012
UR - https://jacow.org/srf2023/papers/mopmb012.pdf
ER -