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Title: Impact of superbends at the ALS

Abstract

To satisfy a demand for high energy, high brightness x-ray sources at the Advanced Light Source (ALS), a plan is in place to replace three 1.3 Tesla normal conducting bending magnets with three 5 Tesla superconducting magnets (superbends) in the year 2001. In this paper they discuss the impact of the superbends on the ALS beam parameters and particle dynamics. In particular they show the effect on the emittance, energy spread, and lifetime. They find that by adjusting the dispersion to be positive in the straight section they are able to largely restore the horizontal emittance. The vertical emittance can be adjusted independently to control the lifetime. The particle dynamics are investigated through particle tracking with a frequency analysis postprocessor. They find that by placing the three superbends symmetrically around the ring there is ample dynamic aperture for injection and lifetime.

Authors:
;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (US)
OSTI Identifier:
7375
Report Number(s):
LBNL-43004
TRN: US0406708
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Conference
Resource Relation:
Conference: 1999 Particle Accelerator Conference, New York, NY (US), 03/29/1999--04/02/1999; Other Information: PBD: 19 Mar 1999
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; ADVANCED LIGHT SOURCE; APERTURES; BENDING; BRIGHTNESS; FREQUENCY ANALYSIS; LIFETIME; MAGNETS; SUPERCONDUCTING MAGNETS; X-RAY SOURCES

Citation Formats

Nishimura, H., and Robin, D. Impact of superbends at the ALS. United States: N. p., 1999. Web.
Nishimura, H., & Robin, D. Impact of superbends at the ALS. United States.
Nishimura, H., and Robin, D. Fri . "Impact of superbends at the ALS". United States. doi:. https://www.osti.gov/servlets/purl/7375.
@article{osti_7375,
title = {Impact of superbends at the ALS},
author = {Nishimura, H. and Robin, D.},
abstractNote = {To satisfy a demand for high energy, high brightness x-ray sources at the Advanced Light Source (ALS), a plan is in place to replace three 1.3 Tesla normal conducting bending magnets with three 5 Tesla superconducting magnets (superbends) in the year 2001. In this paper they discuss the impact of the superbends on the ALS beam parameters and particle dynamics. In particular they show the effect on the emittance, energy spread, and lifetime. They find that by adjusting the dispersion to be positive in the straight section they are able to largely restore the horizontal emittance. The vertical emittance can be adjusted independently to control the lifetime. The particle dynamics are investigated through particle tracking with a frequency analysis postprocessor. They find that by placing the three superbends symmetrically around the ring there is ample dynamic aperture for injection and lifetime.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Mar 19 00:00:00 EST 1999},
month = {Fri Mar 19 00:00:00 EST 1999}
}

Conference:
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