We study the Fermilab Recyler Ring beam life time due to various physical processes associated with beamgas interactions. This includes single coloumb scattering, electronic excitations, nuclear and multiple scattering processes. We compare the measured life time with those obtained from theoretical estimations. The results indicate addtional processes are also contributing to the actual beam life time.
This Technical Memorandum (TM) summarizes the Fermilab Test Beam operations for FY2017. It is one of a series of annual publications intended to gather information in one place. In this case, the information concerns the individual experiments that ran at FTBF and are listed in Table 1. Each experiment section was prepared by the relevant authors, and was edited for inclusion in this summary.
Muon accelerators offer an attractive option for a range of future particle physics experiments. They can enable high energy (TeV+) high energy lepton colliders whilst mitigating the difficulty of synchrotron losses, and can provide intense beams of neutrinos for fundamental physics experiments investigating the physics of flavor. The method of production of muon beams results in high beam emittance which must be reduced for efficient acceleration. Conventional emittance control schemes take too long, given the very short (2.2 microsecond) rest lifetime of the muon. Ionisation cooling offers a much faster approach to reducing particle emittance, and the international MICE collaboration aims to demonstrate this technique for the first time. This paper will present the MICE RF system and its role in the context of the overall experiment.
Nonevaporable getter (NEG) pumping strips[1][2][3], 6.2-m long, were installed inside four Tevatron B2 magnets to improve the vacuum environment. This established A linear pumping scheme in the long, unbakable vacuum chamber. The total pressure was reduced significantly.
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