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TY - CONF AU - Fouaidy, M. AU - Baudrier, M. AU - Carbonnier, P. AU - Cenni, E. AU - Chatelet, F. AU - Delpech, V. AU - Fayette, E. AU - Galet, F. AU - Hanus, X. AU - Le Dréan, D. AU - Longuevergne, D. AU - Martret, R. AU - Maurice, L. AU - Olry, G. AU - Proslier, Th. AU - Pépin-Donat, T. AU - Roudier, D. AU - Sahuquet, P. AU - Servouin, C. ED - Michel, Peter ED - Arnold, André ED - Schaa, Volker RW TI - Status of High Temperature Vacuum Heat Treatment Program at IPN Orsay J2 - Proc. of SRF2019, Dresden, Germany, 30 June-05 July 2019 CY - Dresden, Germany T2 - International Conference on RF Superconductivity T3 - 19 LA - english AB - In the framework of ESS, a vacuum furnace dedicated to High Temperature Heat Treatment under Vacuum (VH2T2) of SRF bulk Nb cavities was developed and commissioned in May 2016. This furnace is currently used for interstitial hydrogen removal (10h00 @ 650 °C) of two type of cavities: 1) the whole series of 26 ESS 352 MHz spoke resonators equipped with their Ti LHe tank well, 2) some prototypes of ESS high beta and medium beta cavities. Up to know IPN Orsay VH2T2 (10h00 @ 650 °C) was successfully applied to more than 16 cavities. In this paper we will first report about these VH2T2 tests. Finally, we have just started testing nitrogen infusion and nitrogen doping processes on samples and 1.3 GHz cavities: the preliminary results will be discussed. PB - JACoW Publishing CP - Geneva, Switzerland SP - 438 EP - 443 KW - cavity KW - SRF KW - niobium KW - MMI KW - vacuum DA - 2019/08 PY - 2019 SN - "" SN - 978-3-95450-211-0 DO - doi:10.18429/JACoW-SRF2019-TUP019 UR - http://jacow.org/srf2019/papers/tup019.pdf ER -