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 - Dohmae, T. AU - Abe, K. AU - Fajardo, A. AU - Inoue, H. AU - Kumar, A. AU - Lannoy, N. AU - Michizono, S. AU - Myneni, G.R. AU - Saeki, T. AU - Umemori, K. AU - Watanabe, Y. AU - Yamamoto, A. AU - Yamanaka, M. AU - Yoshida, K. ED - Saito, Kenji ED - Xu, Ting ED - Sakamoto, Naruhiko ED - Lesage, Ana ED - Schaa, Volker R.W. TI - Fabrication of 1.3 GHz SRF Cavities Using Medium Grain Niobium Discs Directly Sliced from Forged Ingot J2 - Proc. of SRF2021, East Lansing, MI, USA, 28 June-02 July 2021 CY - East Lansing, MI, USA T2 - International Conference on RF Superconductivity T3 - 20 LA - english AB - Medium grain (MG) niobium disc which is directly sliced from forged ingot is newly investigated for the cavity material. An effective cost reduction can be achieved using MG niobium since rolling process which is necessary for typical niobium sheet can be skipped during MG niobium production. Grain size of MD niobium is 200-300 um which is much smaller than large grain (LG) niobium directly sliced from melted niobium ingot. Hence, the formability of MG niobium is expected to be much better than LG niobium. KEK has started fabrication of cavity using MG niobium. In this talk, characteristic of MG niobium during fabrication will be reported. PB - JACoW Publishing CP - Geneva, Switzerland SP - 287 EP - 290 KW - niobium KW - cavity KW - SRF KW - cryogenics KW - collider DA - 2022/10 PY - 2022 SN - 2673-5504 SN - 978-3-95450-233-2 DO - doi:10.18429/JACoW-SRF2021-MOPCAV012 UR - https://jacow.org/srf2021/papers/mopcav012.pdf ER -