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TY - CPAPER AU - Passarelli, D. AU - Nicol, T.H. AU - Parise, M. AU - Ristori, L. TI - High-Vacuum Simulations and Measurements on the SSR1 Cryomodule Beam-Line J2 - Proc. of International Conference on RF Superconductivity (SRF2015), Whistler, BC, Canada, Sept. 13-18, 2015 AB - In order to guarantee an effective cool-down process for the SSR1 cryomodule, a high-vacuum level must be achieved at room temperature in the beam-line before introducing gaseous and liquid helium. The SSR1 cavities in the beamline have a small beam aperture compared to the size of their internal volume. To avoid unnecessary complications for the vacuum piping of the cryomodule cold-mass, a pilot study was conducted on the string prior to processing and qualification of the components to investigate the vacuum level achievable by pumping only through the beam-line. To estimate the pressure distribution inside the cavity string we used a mathematical model implemented in a test-particle Monte-Carlo simulator for ultra-high-vacuum systems. PB - JACoW CY - Geneva, Switzerland SP - 754 EP - 756 KW - vacuum KW - cavity KW - cryomodule KW - simulation KW - niobium DA - 2015/12 PY - 2015 SN - 978-3-95450-178-6 DO - 10.18429/JACoW-SRF2015-TUPB074 UR - http://srf2015.vrws.de/papers/tupb074.pdf ER -