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Title: Intra-Beam and Touschek Scattering Computations for Beam with Non-Gaussian Longitudinal Distributions

Abstract

Both intra-beamscattering (IBS) and the Touschek effect become prominent formulti-bend-achromat- (MBA-) based ultra-low-emittance storage rings. To mitigate the transverse emittance degradation and obtain a reasonably long beam lifetime, a higher harmonic rf cavity (HHC) is often proposed to lengthen the bunch. The use of such a cavity results in a non-gaussian longitudinal distribution. However, common methods for computing IBS and Touschek scattering assume Gaussian distributions. Modifications have been made to several simulation codes that are part of the elegant [1] toolkit to allow these computations for arbitrary longitudinal distributions. After describing thesemodifications, we review the results of detailed simulations for the proposed hybrid seven-bend-achromat (H7BA) upgrade lattice [2] for the Advanced Photon Source.

Authors:
;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1335911
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Conference
Resource Relation:
Conference: 6th International Particle Accelerator Conference (IPAC 2015), 05/03/15 - 05/08/15, Richmond, VA
Country of Publication:
United States
Language:
English

Citation Formats

Xiao, A., and Borland, M. Intra-Beam and Touschek Scattering Computations for Beam with Non-Gaussian Longitudinal Distributions. United States: N. p., 2015. Web.
Xiao, A., & Borland, M. Intra-Beam and Touschek Scattering Computations for Beam with Non-Gaussian Longitudinal Distributions. United States.
Xiao, A., and Borland, M. Thu . "Intra-Beam and Touschek Scattering Computations for Beam with Non-Gaussian Longitudinal Distributions". United States.
@article{osti_1335911,
title = {Intra-Beam and Touschek Scattering Computations for Beam with Non-Gaussian Longitudinal Distributions},
author = {Xiao, A. and Borland, M.},
abstractNote = {Both intra-beamscattering (IBS) and the Touschek effect become prominent formulti-bend-achromat- (MBA-) based ultra-low-emittance storage rings. To mitigate the transverse emittance degradation and obtain a reasonably long beam lifetime, a higher harmonic rf cavity (HHC) is often proposed to lengthen the bunch. The use of such a cavity results in a non-gaussian longitudinal distribution. However, common methods for computing IBS and Touschek scattering assume Gaussian distributions. Modifications have been made to several simulation codes that are part of the elegant [1] toolkit to allow these computations for arbitrary longitudinal distributions. After describing thesemodifications, we review the results of detailed simulations for the proposed hybrid seven-bend-achromat (H7BA) upgrade lattice [2] for the Advanced Photon Source.},
doi = {},
url = {https://www.osti.gov/biblio/1335911}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {1}
}

Conference:
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