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TY - CONF AU - Biagini, M.E. AU - Antonelli, M. AU - Bacci, A. AU - Bauce, M. AU - Blanco-García, O.R. AU - Boscolo, M. AU - Cesarini, G. AU - Chaikovska, I. AU - Chehab, R. AU - Ciarma, A. AU - Collamati, F. AU - Giribono, A. AU - Guiducci, S. AU - Liuzzo, S.M. AU - Lucchesi, D. AU - Pastrone, N. AU - Raimondi, P. AU - Vaccarezza, C. AU - Variola, A. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan TI - Positron Driven Muon Source for a Muon Collider: Recent Developments J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Partile Accelerator Conference T3 - 10 LA - english AB - The design of a future multi-TeV muon collider needs new ideas to overcome the technological challenges related to muon production, cooling, accumulation and acceleration. The Low Emittance Muon Accelerator (LEMMA) concept *,** presents in this paper an upgraded layout of a positron driven muon source. The positron beam, stored in a ring with high energy acceptance and low emittance, is extracted and driven in a push-pull configuration to a multi-target system, to produce muon pairs at threshold on the target’s electrons. This solution alleviates the issues related to the power deposited and the integrated Peak Energy Density Deposition on the targets. Muons produced in the multi-target system will then be accumulated in many parallel rings before acceleration and injection in the collider. A special multi-target line lattice has been designed to cope with the focusing of both the positron and muon beams. Studies on the number, material and thickness of the targets have been carried out. A general layout of the overall scheme and a description is presented, as well as plans for future R&D. PB - JACoW Publishing CP - Geneva, Switzerland SP - 49 EP - 52 KW - target KW - emittance KW - damping KW - collider KW - positron DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-MOZZPLS2 UR - http://jacow.org/ipac2019/papers/mozzpls2.pdf ER -