skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Polarization response of RHIC electron lens lattices

Abstract

Depolarization response for a system of two orthogonal snakes at irrational tunes is studied in depth using lattice independent spin integration. Particularly, we consider the effect of overlapping spin resonances in this system, to understand the impact of phase, tune, relative location and threshold strengths of the spin resonances. Furthermore, these results are benchmarked and compared to two dimensional direct tracking results for the RHIC e-lens lattice and the standard lattice. We then consider the effect of longitudinal motion via chromatic scans using direct six dimensional lattice tracking.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1328539
Alternate Identifier(s):
OSTI ID: 1338607
Report Number(s):
BNL-113332-2016-JA
Journal ID: ISSN 2469-9888; PRABFM; 101002
Grant/Contract Number:  
SC0012704; AC02-05CH11231; AC05-00OR22725; SC0004432; SC0013187; SC00112704
Resource Type:
Published Article
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
Journal Name: Physical Review Accelerators and Beams Journal Volume: 19 Journal Issue: 10; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Ranjbar, V. H., Méot, F., Bai, M., Abell, D. T., and Meiser, D. Polarization response of RHIC electron lens lattices. United States: N. p., 2016. Web. https://doi.org/10.1103/PhysRevAccelBeams.19.101002.
Ranjbar, V. H., Méot, F., Bai, M., Abell, D. T., & Meiser, D. Polarization response of RHIC electron lens lattices. United States. https://doi.org/10.1103/PhysRevAccelBeams.19.101002
Ranjbar, V. H., Méot, F., Bai, M., Abell, D. T., and Meiser, D. Mon . "Polarization response of RHIC electron lens lattices". United States. https://doi.org/10.1103/PhysRevAccelBeams.19.101002.
@article{osti_1328539,
title = {Polarization response of RHIC electron lens lattices},
author = {Ranjbar, V. H. and Méot, F. and Bai, M. and Abell, D. T. and Meiser, D.},
abstractNote = {Depolarization response for a system of two orthogonal snakes at irrational tunes is studied in depth using lattice independent spin integration. Particularly, we consider the effect of overlapping spin resonances in this system, to understand the impact of phase, tune, relative location and threshold strengths of the spin resonances. Furthermore, these results are benchmarked and compared to two dimensional direct tracking results for the RHIC e-lens lattice and the standard lattice. We then consider the effect of longitudinal motion via chromatic scans using direct six dimensional lattice tracking.},
doi = {10.1103/PhysRevAccelBeams.19.101002},
journal = {Physical Review Accelerators and Beams},
number = 10,
volume = 19,
place = {United States},
year = {2016},
month = {10}
}

Journal Article:
Free Publicly Available Full Text

Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

The Magnus expansion and some of its applications
journal, January 2009


The electron lens test bench for the relativistic heavy ion collider at Brookhaven National Laboratory
journal, April 2014

  • Gu, X.; Altinbas, F. Z.; Beebe, E.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 743
  • DOI: 10.1016/j.nima.2013.11.102

Accurate and efficient spin integration for particle accelerators
journal, February 2015

  • Abell, Dan T.; Meiser, Dominic; Ranjbar, Vahid H.
  • Physical Review Special Topics - Accelerators and Beams, Vol. 18, Issue 2
  • DOI: 10.1103/PhysRevSTAB.18.024001

A critical analysis of the conventional theory of spin resonances in storage rings
journal, August 2004

  • Mane, S. R.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 528, Issue 3
  • DOI: 10.1016/j.nima.2004.03.208

Approximations for crossing two nearby spin resonances
journal, January 2015


Spin coupling resonance and suppression in the AGS
journal, May 2004

  • Ranjbar, V. H.; Lee, S. Y.; Ahrens, L.
  • Physical Review Special Topics - Accelerators and Beams, Vol. 7, Issue 5
  • DOI: 10.1103/PhysRevSTAB.7.051001

Operational Head-on Beam-Beam Compensation with Electron Lenses in the Relativistic Heavy Ion Collider
journal, December 2015


Spin Dynamics and Snakes in Synchrotrons
book, June 1997


    Works referencing / citing this record:

    Compensation of head-on beam-beam induced resonance driving terms and tune spread in the Relativistic Heavy Ion Collider
    journal, September 2017


    Calculating the polarization lifetime from the Thomas-Bargmann-Michel-Telegdi equation
    journal, September 2019