Beam lifetime study based on momentum acceptance restriction by movable beam scraper

The beam lifetime of the SAGA-LS electron storage ring was experimentally investigated using a movable beam scraper installed in a dispersive section. In addition to physical aperture restriction, the scraper could be used to reduce the momentum acceptance of the storage ring, enabling the evaluatio...

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Published inNuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 694; pp. 107 - 112
Main Authors Kaneyasu, T., Takabayashi, Y., Iwasaki, Y., Koda, S.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2012
Subjects
Accelerators
Acceptance
Acceptance tests
Beam lifetime
Beam scraper
Beams (radiation)
Constraining
Constrictions
Gas scattering
Momentum acceptance
Scattering
Scrapers
Touschek effect
Momentum acceptance
Beam scraper
Beam lifetime
Touschek effect
Gas scattering
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Summary:The beam lifetime of the SAGA-LS electron storage ring was experimentally investigated using a movable beam scraper installed in a dispersive section. In addition to physical aperture restriction, the scraper could be used to reduce the momentum acceptance of the storage ring, enabling the evaluation of the Touschek effect. Lifetime measurements were performed with scraper scans, and the individual contributions of gas scattering and the Touschek effect were clarified. Our results confirm that the present method provides a basic understanding of lifetime limiting effects in the storage ring.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2012.08.013