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 - Turner, D.A. AU - Gallifa Terricabras, A. AU - González Díaz-Palacio, I. AU - Hillert, W. AU - Koettig, T. AU - Macpherson, A. AU - Rosaz, G.J. AU - Stapley, N. AU - Wenskat, M. ED - Saito, Kenji ED - Xu, Ting ED - Sakamoto, Naruhiko ED - Schaa, Volker R.W. ED - Thomas, Paul W. TI - Flux Expulsion Lens: Concept and Measurements 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 - A magnetic flux expulsion lens (MFEL) has been designed and built at CERN. This device uses closed topology conduction cooling of samples to quantify magnetic flux expulsion of superconductors, and allows for systematic measurements of the cooling dynamics and the magnetic response during the superconducting transition. Measurements for bulk Nb, cold worked Nb, sputtered Nb on Cu, and SIS multilayer structures are given. Preliminary results for both sample characterization of expulsion dynamics, and observation of an enhanced flux expulsion in SIS samples are also reported. PB - JACoW Publishing CP - Geneva, Switzerland SP - 56 EP - 61 KW - FEL KW - cavity KW - niobium KW - site KW - SRF DA - 2023/09 PY - 2023 SN - 2673-5504 SN - 978-3-95450-234-9 DO - doi:10.18429/JACoW-SRF2023-MOPMB003 UR - https://jacow.org/srf2023/papers/mopmb003.pdf ER -