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Persistent URL http://purl.org/net/epubs/work/63542
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Record Id 63542
Title High Intensity Longitudinal Dynamics Studies for an ISIS Injection Upgrade
Abstract ISIS is the world's most productive pulsed neutron and muon source, located 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. Recent upgrade studies at ISIS have centred on a new 180 MeV linac for injection into the existing ring offering the possibility of beam powers in the 0.5 MW regime through reduction in space charge and optimised injection. A central and critical aspect of such an upgrade is the longitudinal dynamics including beam stability, associated RF parameters, space charge levels and stringent requirements on beam loss. This paper outlines possible longitudinal injection schemes for the injection upgrade meeting key design requirements such as minimising halo, maximising the bunching factor and satisfying the Keil-Schnell-Boussard (KSB) stability criterion throughout acceleration. Details of simulation models including calculation of KSB are given together with associated assumptions. Latest results from studies to understand and confirm stability limits on ISIS via simulation and experiment are presented.
Organisation ISIS , ISIS-ACCEL , STFC
Keywords Physics , ISIS , Longitudinal , stability
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Language English (EN)
Type Details URI(s) Local file(s) Year
Paper In Conference Proceedings In 52nd ICFA Advanced Beam Dynamics Workshop on High Intensity and High Brightness Hadron Beams (HB2012), Beijing, China, 17-21 Sep 2012, (2012). THO1A04_new.pdf 2012
Presentation Presented at 52nd ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams (HB2012), Beijing, China, 17-21 Sep 2012. THO1A04_talk.pptx 2012