Analytical estimation of ATF beam halo distribution

WANG Dou; Philip Bambade; Kaoru Yokoya; GAO Jie

doi:10.1088/1674-1137/38/12/127003

Chinese Physics C> 2014, Vol. 38> Issue(12) : 127003 DOI: 10.1088/1674-1137/38/12/127003

Analytical estimation of ATF beam halo distribution

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Abstract：
In order to study the backgrounds in the ATF2 beam line and the interaction point (IP), this paper has developed an analytical method to give an estimation of the ATF beam halo distribution based on K. Hirata and K. Yokoya's theory. The equilibrium particle distribution of the beam tail in the ATF damping ring is presented, with each electron affected by several stochastic processes such as beam-gas scattering, beam-gas bremsstrahlung and intra-beam scattering, in addition to the synchrotron radiation damping effects. This is a general method which can also be applied to other electron rings.

References

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Taikan Suehara et al. Design of a Nanometer Beam Size Monitor for ATF2. arXiv:0810.5467 [physics.ins-det][2] Kohji Hirata, Kaoru Yokoya. Non-Gaussian Distribution of Electron Beams Due to Incoherent Stochastic Processes. Pariticle Accelerators, 1992, 39: 147-158[3] Bane K L F, Hayano H, Kubo K, Naito T, Okugi T, Urakawa J. Intrabeam Scattering Analysis of Measurements at KEK's Accelerator Test Facility Damping Ring. PRSTAB, 2002, 5: 084403[4] Heilter W. The Quantum Theory of Radiation, Oxford: Oxford University Press, 1995[5] Eun-San Kim. Estimates of the Non-Gaussian Beam-Tail Distributions and the Beam Lifetime at the Pohang Light Source. Journal of the Korean Physical Society, 2004, 44(4): 823-829[6] Piwinski A. Intrabeam Scattering. In Proceedings of the 9th International Conference on High Energy Accelerators. Stanford, CA. 1974[7] Bjorken J, Mtingwa S. Intrabeam Scattering. Part. Accel., 1983, 13: 115[8] Piwinski A. Intrabeam Scattering in the Presence of Linear Coupling, DESY 90-113. 1990[9] Le Duff J. Single and Multiple Touschek Effects. In Proceedings of the CERN Accelerator School: Accelerator Physics, Berlin, Germany, 14-25 Sep 1987. 114-130[10] Raubenheimer T O. The Core Emittance with Intrabeam Scattering in e+/e- Rings. SLAC-PUB-5790, Sep. 1992[11] Kubo K, Oide K. Intrabeam Scattering in Electron Storage Rings. PRSTAB, 2001, 4: 124401[12] Kubo K, Mtingwa S K, Wolski A. Intrabeam Scattering Formulas for High Energy Beams. PRSTAB, 2005, 8: 081001[13] Bruck H. Accelerateurs Circulaires de Particules. Presses Universitaires de France, Paris. 1966

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WANG Dou, Philip Bambade, Kaoru Yokoya and GAO Jie. Analytical estimation of ATF beam halo distribution[J]. Chinese Physics C, 2014, 38(12): 127003. doi: 10.1088/1674-1137/38/12/127003

WANG Dou, Philip Bambade, Kaoru Yokoya and GAO Jie. Analytical estimation of ATF beam halo distribution[J]. Chinese Physics C, 2014, 38(12): 127003. doi: 10.1088/1674-1137/38/12/127003 shu

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Received: 2013-11-06
Revised: 2014-05-05

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