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Title: Dynamic Aperture Studies for SPEAR 3

Abstract

The Stanford Synchrotron Radiation Laboratory is investigating an accelerator upgrade project that would replace the present 130 nm rad FODO lattice with an 18 nm rad double bend achromat (DBA) lattice: SPEAR 3. The low emittance design yields a high brightness beam, but the stronger focusing in the DBA lattice increases chromaticity and beam sensitivity to machine errors. To ensure efficient injection and long Touschek lifetime, an optimization of the design lattice and dynamic aperture has been performed. In this paper, we review the methods used to maximize the SPEAR 3 dynamic aperture including necessary optics modifications, choice of tune and phase advance, optimization of sextupole and coupling correction, and modeling effects of machine errors, wigglers and lattice periodicity.

Authors:
Publication Date:
Research Org.:
Stanford Linear Accelerator Center, Menlo Park, CA (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
9934
Report Number(s):
SLAC-PUB-7965
TRN: US0103233
DOE Contract Number:  
AC03-76SF00515
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 2 Nov 1998
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; MODIFICATIONS; OPTICS; SPEAR; BEAM EMITTANCE; BEAM INJECTION; DESIGN; APERTURES; PARAMETRIC ANALYSIS

Citation Formats

Corbett, William. Dynamic Aperture Studies for SPEAR 3. United States: N. p., 1998. Web. doi:10.2172/9934.
Corbett, William. Dynamic Aperture Studies for SPEAR 3. United States. doi:10.2172/9934.
Corbett, William. Mon . "Dynamic Aperture Studies for SPEAR 3". United States. doi:10.2172/9934. https://www.osti.gov/servlets/purl/9934.
@article{osti_9934,
title = {Dynamic Aperture Studies for SPEAR 3},
author = {Corbett, William},
abstractNote = {The Stanford Synchrotron Radiation Laboratory is investigating an accelerator upgrade project that would replace the present 130 nm rad FODO lattice with an 18 nm rad double bend achromat (DBA) lattice: SPEAR 3. The low emittance design yields a high brightness beam, but the stronger focusing in the DBA lattice increases chromaticity and beam sensitivity to machine errors. To ensure efficient injection and long Touschek lifetime, an optimization of the design lattice and dynamic aperture has been performed. In this paper, we review the methods used to maximize the SPEAR 3 dynamic aperture including necessary optics modifications, choice of tune and phase advance, optimization of sextupole and coupling correction, and modeling effects of machine errors, wigglers and lattice periodicity.},
doi = {10.2172/9934},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {11}
}

Technical Report:

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