DocumentCode
2893016
Title
Design of dynamic collimator for J-PARC main ring
Author
Tomizawa, M. ; Molodozhentsev, A. ; Shirakata, M.
Author_Institution
KEK, Tsukuba
fYear
2007
fDate
25-29 June 2007
Firstpage
1505
Lastpage
1507
Abstract
The J-PARC main ring has a beam collimator section downstream of the injection area. The allowed beam loss is about 450 W. The beam halo generated before acceleration can be scraped by a standard collimator scheme. However the beam halo can grow during the acceleration. Such a halo may cause a serious beam loss at the extraction. A collimation during acceleration (dynamic collimator) is useful to reduce the beam loss at the extraction. We propose the dynamic collimator scheme and show the performance expected from the simulations.
Keywords
accelerator magnets; collimators; linear accelerators; particle beam dynamics; particle beam extraction; particle beam injection; synchrotrons; J-PARC main ring; beam halo; beam injection area; dynamic collimator; linac; power 450 W; quadrupole magnets; rapid cycle synchrotron; standard collimator; Acceleration; Apertures; Colliding beam accelerators; Collimators; Linear particle accelerator; Magnets; Particle beams; Radio frequency; Space charge; Synchrotrons;
fLanguage
English
Publisher
ieee
Conference_Titel
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location
Albuquerque, NM
Print_ISBN
978-1-4244-0916-7
Type
conf
DOI
10.1109/PAC.2007.4440804
Filename
4440804
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