[SLAC] [SLAC Pubs and Reports]

SLAC-PUB-7859
Lifetime Measurement of ATF Damping Ring

Abstract

The purpose of the ATF damping ring is the development of technologies for producing a low emittance beam required in future linear colliders such as JLC. The lifetime of the damping ring is very short (typically a few minutes). It is limited by elastic beam-gas scattering along with a small dynamic aperture, and by single intra-beam scattering (Touschek effect). The Touschek lifetime strongly depends upon the charge density of the beam, especially, the size of the vertical emittance. In this paper, we report the results of beam lifetime measurements in the ATF damping ring and the estimation of the vertical emittance from these measurements.

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