Sensitivity of the CSR Self-Interaction to the Local Longitudinal Charge Concentration of an Electron Bunch

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Recent measurements of the coherent synchrotron radiation (CSR) effect carried out at CERN and at Jefferson Lab indicate that the observed emittance growth and energy modulation due to the orbit-curvature-induced bunch self-interaction are sometimes bigger than the results predicted from previous analyses and simulations based on a Gaussian longitudinal charge distribution. In this paper, by performing a model study, we show both analytically and numerically that when the longitudinal bunch charge distribution involves concentration of charges in a small fraction of the bunch length, enhancement of the CSR self-interaction beyond the Gaussian prediction may occur.

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416 Kilobytes pages

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Li, R. August 1, 2000.

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Recent measurements of the coherent synchrotron radiation (CSR) effect carried out at CERN and at Jefferson Lab indicate that the observed emittance growth and energy modulation due to the orbit-curvature-induced bunch self-interaction are sometimes bigger than the results predicted from previous analyses and simulations based on a Gaussian longitudinal charge distribution. In this paper, by performing a model study, we show both analytically and numerically that when the longitudinal bunch charge distribution involves concentration of charges in a small fraction of the bunch length, enhancement of the CSR self-interaction beyond the Gaussian prediction may occur.

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416 Kilobytes pages

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  • 22nd International Free Electron Laser Conference And 7th FEL Users Workshop, Durham, NC (US), 08/13/2000--08/18/2000

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  • Report No.: JLAB-ACC-01-32
  • Report No.: DOE/ER/40150-2092
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 796062
  • Archival Resource Key: ark:/67531/metadc736301

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  • August 1, 2000

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  • Oct. 19, 2015, 7:39 p.m.

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  • Feb. 5, 2016, 9:45 p.m.

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Li, R. Sensitivity of the CSR Self-Interaction to the Local Longitudinal Charge Concentration of an Electron Bunch, article, August 1, 2000; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc736301/: accessed September 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.