CERN Accelerating science

Preprint
Report number	arXiv:2109.06503
Title	Beam halo from Touschek scattering in the KEK Accelerator Test Facility
Author(s)	Yang, R. (KEK, Tsukuba ; Sokendai, Tsukuba) ; Aryshev, A. (KEK, Tsukuba ; Sokendai, Tsukuba) ; Bambade, P. (IJCLab, Orsay) ; Bergamaschi, M. (CERN) ; Kubo, K. (KEK, Tsukuba ; Sokendai, Tsukuba) ; Naito, T. (KEK, Tsukuba ; Sokendai, Tsukuba) ; Terunuma, N. (KEK, Tsukuba ; Sokendai, Tsukuba) ; Wallon, S. (IJCLab, Orsay) ; Zhang, J. (DESY)
Imprint	2021-09-14
Number of pages	6
Subject category	physics.acc-ph ; Accelerators and Storage Rings
Abstract	Beam halo is one of the crucial issues limiting the machine performance and causing radioactivation in high-intensity accelerators. A clear picture of beam-halo formation is of great importance for successful suppression of the undesired beam loss. We present numerical and experimental studies of transverse and longitudinal halos in the KEK Accelerator Test Facility. The fair accordance between predictions and observations in various conditions indicates that the Touschek scattering is the dominant mechanism forming the horizontal and momentum halos.
Other source	Inspire
Copyright/License	preprint: (License: CC BY 4.0)