Phys. Rev. ST Accel. Beams 4, 114401 (2001) [15 pages]Longitudinal simulations and measurements of stretched bunches |
N. Towne
National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973
Received 6 February 2001; published 28 November 2001
Extending the method of Warnock and Ellison for the simulation of the Vlasov-Fokker-Planck equation for bunched beams [in Proceedings of the 2nd ICFA Advanced Accelerator Workshop on the Physics of High Brightness Beams, Los Angeles, CA, 1999 (World Scientific, Singapore, 2000)], we analyze arbitrary radio-frequency potentials and high- Q impedances and study instabilities in stretched bunches. Results for the microwave instability driven by a broadband impedance and instability driven by high- Q rf modes in stretched bunches are compared with measurements of the vacuum ultraviolet ring at the National Synchrotron Light Source. A method for the calculation of response functions is developed, and simulated response functions are compared to experimental results.
©2001 The American Physical Society
URL: http://link.aps.org/abstract/PRSTAB/v4/e114401
DOI: 10.1103/PhysRevSTAB.4.114401
PACS: 29.27.Bd
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