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Title: Widening and distortion of the particle energy distribution by chromaticity in quasi-isochronous rings

Abstract

This paper reports the observation of beam energy widening and distortion from Gaussian due to a nonvanishing horizontal chromaticity at a quasi-isochronous storage ring. The result originates from an average path-length dependence on the betatron oscillation amplitudes, which is intimately correlated to the transverse chromaticities. It is the first experimental validation of the impact of such a nonlinear transverse-longitudinal coupling effect on the equilibrium beam characteristics in a storage ring. The results could be important for quasi-isochronous rings, steady-state microbunching, nonscaling fixed-field alternate gradient accelerators, etc., where very small momentum compaction or large chromaticity is required.

Authors:
ORCiD logo [1];  [2];  [3];  [2];  [1]; ORCiD logo [4];  [2]; ORCiD logo [2];  [2];  [2];  [1]; ORCiD logo [2]
  1. Tsinghua Univ., Beijing (China)
  2. Physikalisch-Technische Bundesanstalt (PTB), Berlin (Germany)
  3. Tsinghua Univ., Beijing (China); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  4. Helmholtz-Zentrum Berlin (HZB), (Germany)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1633199
Grant/Contract Number:  
AC02-76SF00515; 20191081195
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
Journal Volume: 23; Journal Issue: 4; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; Beam dynamics; Higher order beam dynamics; Single-particle dynamics

Citation Formats

Deng, X. J., Klein, R., Chao, A. W., Hoehl, A., Huang, W. H., Li, J., Lubeck, J., Petenev, Y., Ries, M., Seiler, I., Tang, C. X., and Feikes, J. Widening and distortion of the particle energy distribution by chromaticity in quasi-isochronous rings. United States: N. p., 2020. Web. doi:10.1103/physrevaccelbeams.23.044001.
Deng, X. J., Klein, R., Chao, A. W., Hoehl, A., Huang, W. H., Li, J., Lubeck, J., Petenev, Y., Ries, M., Seiler, I., Tang, C. X., & Feikes, J. Widening and distortion of the particle energy distribution by chromaticity in quasi-isochronous rings. United States. doi:https://doi.org/10.1103/physrevaccelbeams.23.044001
Deng, X. J., Klein, R., Chao, A. W., Hoehl, A., Huang, W. H., Li, J., Lubeck, J., Petenev, Y., Ries, M., Seiler, I., Tang, C. X., and Feikes, J. Thu . "Widening and distortion of the particle energy distribution by chromaticity in quasi-isochronous rings". United States. doi:https://doi.org/10.1103/physrevaccelbeams.23.044001. https://www.osti.gov/servlets/purl/1633199.
@article{osti_1633199,
title = {Widening and distortion of the particle energy distribution by chromaticity in quasi-isochronous rings},
author = {Deng, X. J. and Klein, R. and Chao, A. W. and Hoehl, A. and Huang, W. H. and Li, J. and Lubeck, J. and Petenev, Y. and Ries, M. and Seiler, I. and Tang, C. X. and Feikes, J.},
abstractNote = {This paper reports the observation of beam energy widening and distortion from Gaussian due to a nonvanishing horizontal chromaticity at a quasi-isochronous storage ring. The result originates from an average path-length dependence on the betatron oscillation amplitudes, which is intimately correlated to the transverse chromaticities. It is the first experimental validation of the impact of such a nonlinear transverse-longitudinal coupling effect on the equilibrium beam characteristics in a storage ring. The results could be important for quasi-isochronous rings, steady-state microbunching, nonscaling fixed-field alternate gradient accelerators, etc., where very small momentum compaction or large chromaticity is required.},
doi = {10.1103/physrevaccelbeams.23.044001},
journal = {Physical Review Accelerators and Beams},
number = 4,
volume = 23,
place = {United States},
year = {2020},
month = {4}
}

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Works referenced in this record:

Steady-State Microbunching in a Storage Ring for Generating Coherent Radiation
journal, October 2010


Bunch lengthening by a betatron motion in quasi-isochronous storage rings
journal, September 2004


Operation of the Metrology Light Source as a primary radiation source standard
journal, November 2008

  • Klein, Roman; Brandt, Guido; Fliegauf, Rolf
  • Physical Review Special Topics - Accelerators and Beams, Vol. 11, Issue 11
  • DOI: 10.1103/PhysRevSTAB.11.110701

Amplitude dependence of time of flight and its connection to chromaticity
journal, January 2007

  • Scott Berg, J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 570, Issue 1
  • DOI: 10.1016/j.nima.2006.09.099

Beam diagnostics at the BESSY I electron storage ring with Compton backscattered laser photons: measurement of the electron energy and related quantities
journal, January 1997

  • Klein, R.; Mayer, T.; Kuske, P.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 384, Issue 2-3
  • DOI: 10.1016/S0168-9002(96)00899-6

Longitudinal radiation excitation in an electron storage ring
journal, November 1996


Amplitude dependent shift of betatron oscillation center
journal, June 2014

  • Shoji, Yoshihiko; Takao, Masaru; Nakamura, Takeshi
  • Physical Review Special Topics - Accelerators and Beams, Vol. 17, Issue 6
  • DOI: 10.1103/PhysRevSTAB.17.064001

Metrology Light Source: The first electron storage ring optimized for generating coherent THz radiation
journal, March 2011

  • Feikes, J.; von Hartrott, M.; Ries, M.
  • Physical Review Special Topics - Accelerators and Beams, Vol. 14, Issue 3
  • DOI: 10.1103/PhysRevSTAB.14.030705

Radio-frequency beam conditioner for fast-wave free-electron generators of coherent radiation
journal, January 1992


Amplitude-dependent orbital period in alternating gradient accelerators
journal, March 2016

  • Machida, S.; Kelliher, D. J.; Edmonds, C. S.
  • Progress of Theoretical and Experimental Physics, Vol. 2016, Issue 3
  • DOI: 10.1093/ptep/ptw006

Dependence of average path length betatron motion in a storage ring
journal, September 2005


Energy Transfer in the Plasma Wake-Field Accelerator
journal, March 1986