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Title: Closed Orbit Distortion and the Beam-Beam Interaction

Abstract

We study the applicability of beam-beam deflection techniques as a tuning tool for the SLAC/LBL/LLNL B factory, PEP-II. Assuming that the closed orbits of the two beams are separated vertically at the interaction point by a local orbit bump that is nominally closed, we calculate the residual beam orbit distortions due to the beam-beam interaction. Difference orbit measurements, performed at points conveniently distant from the IP, provide distinct coordinate- or frequency-space signatures that can be used to maintain the beams in collision and perform detailed optical diagnostics at the IP. A proposal to test this method experimentally at the TRISTAN ring is briefly discussed.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Stanford Linear Accelerator Center (SLAC)
Sponsoring Org.:
USDOE
OSTI Identifier:
899839
Report Number(s):
SLAC-R-855
TRN: US200709%%457
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BEAM-BEAM INTERACTIONS; TUNING; PEP STORAGE RINGS; ORBITS; DISTURBANCES; Accelerators,ACCPHY

Citation Formats

Furman, M., Chin, Y., Eden, J., /LBL, Berkeley, Kozanecki, W., /DAPNIA, Saclay /SLAC, Tennyson, J.L., Ziemann, V., and /SLAC. Closed Orbit Distortion and the Beam-Beam Interaction. United States: N. p., 2007. Web. doi:10.2172/899839.
Furman, M., Chin, Y., Eden, J., /LBL, Berkeley, Kozanecki, W., /DAPNIA, Saclay /SLAC, Tennyson, J.L., Ziemann, V., & /SLAC. Closed Orbit Distortion and the Beam-Beam Interaction. United States. doi:10.2172/899839.
Furman, M., Chin, Y., Eden, J., /LBL, Berkeley, Kozanecki, W., /DAPNIA, Saclay /SLAC, Tennyson, J.L., Ziemann, V., and /SLAC. Fri . "Closed Orbit Distortion and the Beam-Beam Interaction". United States. doi:10.2172/899839. https://www.osti.gov/servlets/purl/899839.
@article{osti_899839,
title = {Closed Orbit Distortion and the Beam-Beam Interaction},
author = {Furman, M. and Chin, Y. and Eden, J. and /LBL, Berkeley and Kozanecki, W. and /DAPNIA, Saclay /SLAC and Tennyson, J.L. and Ziemann, V. and /SLAC},
abstractNote = {We study the applicability of beam-beam deflection techniques as a tuning tool for the SLAC/LBL/LLNL B factory, PEP-II. Assuming that the closed orbits of the two beams are separated vertically at the interaction point by a local orbit bump that is nominally closed, we calculate the residual beam orbit distortions due to the beam-beam interaction. Difference orbit measurements, performed at points conveniently distant from the IP, provide distinct coordinate- or frequency-space signatures that can be used to maintain the beams in collision and perform detailed optical diagnostics at the IP. A proposal to test this method experimentally at the TRISTAN ring is briefly discussed.},
doi = {10.2172/899839},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Feb 23 00:00:00 EST 2007},
month = {Fri Feb 23 00:00:00 EST 2007}
}

Technical Report:

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