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Measurement of beam lifetime and applications for SPEAR3

โœ Scribed by Xiaobiao Huang; Jeff Corbett

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
388 KB
Volume
629
Category
Article
ISSN
0168-9002

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โœฆ Synopsis

Beam lifetime studies for the SPEAR3 storage ring are presented. The three lifetime components are separated with lifetime measurements under various combinations of beam currents and fill patterns and vertical scraper scans. Touschek lifetime is studied with rf voltage scans and with the horizontal or vertical scrapers inserted. The measurements are explained with calculations based on the calibrated lattice model. Quantum lifetime measurements are performed with reduced longitudinal and horizontal apertures, respectively, from which we deduce the radiation energy loss down to a few keV per revolution and the horizontal beam size.

๐Ÿ“œ SIMILAR VOLUMES

Simple determination of Touschek and bea
Simple determination of Touschek and beam-gas scattering lifetimes from a measured beam lifetime
โœ Tae-Yeon Lee; Jinhyuk Choi; H.S. Kang ๐Ÿ“‚ Article ๐Ÿ“… 2005 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 179 KB

Derived are simple and accurate formulas breaking down a measured beam lifetime into its partial lifetimes of Touschek and beam-gas scattering. They are useful as practical means, because the existing formulas for the two partial lifetimes often fail to give numerically accurate numbers due to the l