Sensitivity of the CSR Self-Interaction to the Local Longitudinal Charge Concentration of an Electron Bunch
Conference
·
· Nuclear Instruments & Methods in Physics Research, Section A
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.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 796062
- Report Number(s):
- JLAB-ACC-01-32; DOE/ER/40150-2092
- Conference Information:
- Journal Name: Nuclear Instruments & Methods in Physics Research, Section A Journal Issue: 1-3 Journal Volume: 475
- Country of Publication:
- United States
- Language:
- English
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