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Title: ION EFFECTS IN THE APS PARTICLE ACCUMULATOR RING

Abstract

Trapped ions in the APS Particle Accumulator Ring (PAR) lead to a positive coherent tune shift in both planes, which increases along the PAR cycle as more ions accumulate. This effect has been studied using an ion simulation code developed at SLAC. After modifying the code to include a realistic vacuum profile, multiple ionization, and the effect of shaking the beam to measure the tune, the simulation agrees well with our measurements. This code has also been used to evaluate the possibility of ion instabilities at the high bunch charge needed for the APS-Upgrade.

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:
1389068
DOE Contract Number:
AC02-06CH11357
Resource Type:
Conference
Resource Relation:
Conference: 2016 North American Particle Accelerator Conference, 10/09/16 - 10/14/16, Chicago, IL, US
Country of Publication:
United States
Language:
English
Subject:
APS; APS PARTICLE ACCUMULATOR RING; ION EFFECTS

Citation Formats

Calvey, J., Harkay, K., and Yao, CY. ION EFFECTS IN THE APS PARTICLE ACCUMULATOR RING. United States: N. p., 2017. Web. doi:10.18429.
Calvey, J., Harkay, K., & Yao, CY. ION EFFECTS IN THE APS PARTICLE ACCUMULATOR RING. United States. doi:10.18429.
Calvey, J., Harkay, K., and Yao, CY. 2017. "ION EFFECTS IN THE APS PARTICLE ACCUMULATOR RING". United States. doi:10.18429. https://www.osti.gov/servlets/purl/1389068.
@article{osti_1389068,
title = {ION EFFECTS IN THE APS PARTICLE ACCUMULATOR RING},
author = {Calvey, J. and Harkay, K. and Yao, CY.},
abstractNote = {Trapped ions in the APS Particle Accumulator Ring (PAR) lead to a positive coherent tune shift in both planes, which increases along the PAR cycle as more ions accumulate. This effect has been studied using an ion simulation code developed at SLAC. After modifying the code to include a realistic vacuum profile, multiple ionization, and the effect of shaking the beam to measure the tune, the simulation agrees well with our measurements. This code has also been used to evaluate the possibility of ion instabilities at the high bunch charge needed for the APS-Upgrade.},
doi = {10.18429},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2017,
month = 6
}

Conference:
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