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Persistent URL http://purl.org/net/epubs/work/60831
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Record Id 60831
Title High intensity longitudinal dynamics studies for higher energy injection into the ISIS synchrotron
Abstract ISIS is the world's most productive pulsed neutron and muon source, at the Rutherford Appleton Laboratory in the UK. Operation is centred on a loss-limited 50 Hz proton synchrotron which accelerates 3e13 protons per pulse from 70 MeV to 800 MeV, delivering a mean beam power of 0.2 MW. Present studies on ISIS upgrades are focussed on a new linac for higher energy injection into the existing ring, potentially increasing beam current through reduction in space charge and optimized injection. Studies assume injection of a chopped beam at 180 MeV and offer the possibility of beam powers in the 0.5 MW regime. A critical aspect of such an upgrade is the longitudinal dynamics, associated RF parameters, space charge levels and stringent requirements on beam loss. This paper outlines studies optimizing longitudinal parameters including key design requirements such as bunching factor and satisfying the Keil-Schnell-Boussard stability criterion throughout acceleration. Work developing and benchmarking the in-house longitudinal dynamics code used for these studies is also summarized.
Organisation ISIS , ISIS-ACCEL , STFC
Keywords Physics , ISIS , Upgrade , Longitudinal , stability , Keil Schnell Boussard
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Language English (EN)
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Paper In Conference Proceedings In 2nd International Particle Accelerator Conference (IPAC11), San Sebastian, Spain, 4-9 Sept 2011, (2011). MOPS019.pdf 2011