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 - Seal, D.J. AU - Burt, G. AU - Chyhyrynets, E. AU - Hryhorenko, O. AU - Longuevergne, D. AU - Malyshev, O.B. AU - Marks, H.S. AU - Marshall, E.A. AU - Pira, C. AU - Sian, B.S. AU - Valizadeh, R. ED - McIntosh, Peter ED - Burt, Graeme ED - Apsimon, Robert ED - Schaa, Volker R.W. TI - RF Characterisation of Bulk Niobium and Thin Film Coated Planar Samples at 7.8 GHz J2 - Proc. of LINAC2022, Liverpool, UK, 28 August-02 September 2022 CY - Liverpool, UK T2 - International Linear Accelerator Conference T3 - 31 LA - english AB - Research is ongoing into the use of superconducting thin films to replace bulk niobium for future radio frequency (RF) cavities. A key part of this research requires measuring the RF properties of candidate films. However, coating and testing thin films on full-sized cavities is both costly and time-consuming. Instead, films are typically deposited on small, flat samples and characterised using a test cavity. A cost-effective facility for testing such samples has recently been built and commissioned at Daresbury Laboratory. The facility allows for low power surface resistance measurements at a resonant frequency of 7.8 GHz, temperatures down to 4 K and sample surface magnetic fields up to 1 mT. A brief overview of this facility as well as recent results from measurements of both bulk Nb and thin film coated samples will be presented. PB - JACoW Publishing CP - Geneva, Switzerland SP - 818 EP - 821 KW - cavity KW - SRF KW - site KW - operation KW - superconducting-RF DA - 2022/09 PY - 2022 SN - 2226-0366 SN - 978-3-95450-215-8 DO - doi:10.18429/JACoW-LINAC2022-THPOGE10 UR - https://jacow.org/linac2022/papers/thpoge10.pdf ER -