TY - CONF AU - Mammosser, J.D. AU - Afanador, R. AU - Barnhart, D.L. AU - Bitter, A. AU - Bolz, K.B. AU - Champion, M.S. AU - Daly, E.F. AU - Davis, G.K. AU - Dayton, M.J. AU - DeGraff, B. AU - Dhakal, P. AU - Doleans, M. AU - Fischer, J.F. AU - Forehand, D. AU - Galambos, J. AU - Gold, S.W. AU - Greenwood, M.N. AU - Hine, G.A. AU - Howell, M.P. AU - Huque, N.A. AU - Kim, S.-H. AU - Kraft, D.D. AU - Maekawa, R. AU - McMahan, C.J. AU - Navitski, A. AU - Pinion, L. AU - Pizzol, P. AU - Robertson, B.E. AU - Stewart, S.E. AU - Vandygriff, D.J. AU - Vandygriff, D.M. AU - Wilson, K.M. AU - Zweibäumer, L. ED - Saito, Kenji ED - Xu, Ting ED - Sakamoto, Naruhiko ED - Schaa, Volker R.W. ED - Thomas, Paul W. TI - Proton Power Upgrade Project Progress and Plans at the Spallation Neutron Source in Oak Ridge Tennessee 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 - The Proton Power Upgrade project is well underway at the Spallation Neutron Source (SNS) facility in Oak Ridge, Tennessee. This project aims at increasing the proton beam power capability from 1.4 to 2.8 MW, by adding linac energy, increasing the beam current and implementing target developments to handle the increased beam power. This talk will cover the current status of increasing the beam energy, issues encountered along the way, operational experience with the new SRF cryomodules and target improvements and results from operation with beam so far. PB - JACoW Publishing CP - Geneva, Switzerland SP - 25 EP - 29 KW - target KW - cryomodule KW - cavity KW - operation KW - linac DA - 2023/09 PY - 2023 SN - 2673-5504 SN - 978-3-95450-234-9 DO - doi:10.18429/JACoW-SRF2023-MOIXA03 UR - https://jacow.org/srf2023/papers/moixa03.pdf ER - TY - CONF AU - Moretti, M. AU - Hoerstensmeyer, Y.N. AU - Marhauser, F. AU - Navitski, A. ED - Saito, Kenji ED - Xu, Ting ED - Sakamoto, Naruhiko ED - Schaa, Volker R.W. ED - Thomas, Paul W. TI - Fabrication and Surface Treatment of Superconducting Rf Single Spoke Cavities for the Myrrha Project 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 - The MYRRHA project, based at SCK•CEN (Belgium), aims at coupling a 600 MeV proton accelerator to a subcritical fission core with a maximal output of 100 MWth. The first phase of the project, MINERVA, includes the design, construction, and commissioning of a 100 MeV superconducting RF linac in order to demonstrate the machine requirements in terms of reliability and fault tolerance. The MINERVA linac comprises several cryomodules, each containing two Single Spoke 352.2 MHz cavities made out of high RRR niobium and operating at 2K. The fabrication and surface treatment of the Single Spoke RF Cavities is currently ongoing and completely carried out by RI Research Instruments GmbH (Germany); the first pre-series cavities were completed and delivered for cold testing. Main highlights of the fabrication include the deep-drawing of complex shapes, such as central spokes and outer caps of the cavity, which was successfully accomplished. As for the surface treatment, RI has commissioned, tested, and effectively started utilizing a new rotational buffered chemical polishing facility; this is required to polish the cavity inner surface, while ensuring an almost uniform material removal. PB - JACoW Publishing CP - Geneva, Switzerland SP - 578 EP - 583 KW - cavity KW - niobium KW - simulation KW - MMI KW - linac DA - 2023/09 PY - 2023 SN - 2673-5504 SN - 978-3-95450-234-9 DO - doi:10.18429/JACoW-SRF2023-TUPTB067 UR - https://jacow.org/srf2023/papers/tuptb067.pdf ER -