Lifetime Measurement of ATF Damping Ring
نویسندگان
چکیده
The purpose of the ATF darnping ring is the development of technologies for .producing a low ernittance bearn 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 srnall 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 estirnation of the vertical emittance from these measurements.
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