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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/50346
Record Status
Checked
Record Id
50346
Title
Studies of space charge loss mechanisms associated with half integer resonance on the ISIS RCSS
Contributors
CM Warsop (STFC Rutherford Appleton Lab.) (Pr.Au.)
,
DJ Adams (STFC Rutherford Appleton Lab.)
,
B Jones (STFC Rutherford Appleton Lab.)
,
SJ Payne (STFC Rutherford Appleton Lab.)
,
BG Pine (STFC Rutherford Appleton Lab.)
,
RE Williamson (STFC Rutherford Appleton Lab.)
Abstract
ISIS is the spallation neutron source at the Rutherford Appleton Laboratory in the UK. Operation centres on a 50 Hz proton synchrotron, which accelerates ~3E13 ppp (protons per pulse) from 70 to 800 MeV, corresponding to beam powers of 0.2 MW. Beam loss imposes limits on operational intensity, and a main contributing mechanism is the action of half integer resonance under high space charge. The same loss mechanism is also a potential problem in ISIS upgrade scenarios involving either higher energy injection into the existing ring, or the addition of a new 3 GeV, high intensity RCS (rapid cycling synchrotron). Progress on PIC (particle in cell) simulation studies investigating the effects of the driven coherent envelope motion, the associated parametric halo, along with implications of momentum spread, is reported. Where possible, comparisons are made with relevant theoretical models. Closely related benchmarking work, experimental studies and plans are also summarised.
Organisation
ISIS
,
ISIS-ACCEL
,
STFC
Keywords
Physics
,
proton synchrotron
,
high intensity
,
beam loss
,
space charge
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Paper In Conference Proceedings
In Particle Accelerator Conference (PAC 2009), Vancouver, Canada, 4-8 May 2009, (2009).
FR5PFP044.pdf
2009
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