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Phys. Rev. E 69, 046501 (2004) [4 pages]

Simple formulas for the beam lifetime analysis in an electron storage ring

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Tae-Yeon Lee
Pohang Accelerator Laboratory San 31, Hyoja-dong, Pohang, Kyungbuk, 790-784 Korea

Received 13 November 2003; published 14 April 2004

Derived are simple and accurate formulas estimating the Touschek and beam-gas scattering lifetimes. These formulas are practical rather than theoretical. They use only the measured total beam lifetime τ and its time derivative dτ/dt to estimate the two lifetimes. The only condition required is suppression or saturation of the radiative polarization. As a demonstration, the formulas are applied to the Pohang Light Source (PLS) beam lifetime.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.69.046501
DOI:
10.1103/PhysRevE.69.046501
PACS:
29.27.Bd, 41.75.Ht, 29.20.Dh