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APS » Journals » Phys. Rev. E » Volume 58 » Issue 3
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Phys. Rev. E 58, R2737–R2740 (1998)

Diamagnetic fields due to finite-dimension intense beams in high-gain free-electron lasers

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J. B. Rosenzweig and P. Musumeci
Department of Physics and Astronomy, University of California at Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095-1547

Received 19 May 1998; published in the issue dated September 1998

High-gain, self-amplified spontaneous emission free-electron lasers (SASE FEL’s), with proposed operation in wavelengths extending down to x rays, require intense relativistic electron beams, which under certain conditions can generate large diamagnetic fields. The action of these fields has the potential to seriously degrade FEL performance. It is shown here by both analysis and simulation that the finite size of the electron beams diminishes this effect so that it is negligible for proposed SASE FEL’s.

© 1998 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.58.R2737
DOI:
10.1103/PhysRevE.58.R2737
PACS:
41.60.Cr, 41.60.Ap
 
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