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Proceedings Paper

Limiting Energy Spread At High Laser Intensities Using Phase Space Displacement
Author(s): H. Takeda; S. B. Segall
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Paper Abstract

Phase space displacement is investigated as a method of reducing energy spread in free electron lasers producing long-wavelength radiation (- 1 mm) at high laser intensity (- 107- 'OR W/cm2). The technique is described and compared with the more conventional tapered wiggler that traps electrons in decelerating phase space buckets. A band model is developed to describe the movement of electrons around the phase space buckets and estimate the resulting energy spread. The energy spread obtained from the band model is compared with that obtained from a multiparticle computer simulation. Laser gain obtained by bucket capture is found to be comparable to gain obtained by phase space displacement at high intensities but energy spread is a factor of a few lower.

Paper Details

Date Published: 16 February 1984
PDF: 9 pages
Proc. SPIE 0453, Free-Electron Generators of Coherent Radiation, (16 February 1984); doi: 10.1117/12.947097
Show Author Affiliations
H. Takeda, KMS Fusion, Inc. (United States)
S. B. Segall, KMS Fusion, Inc. (United States)


Published in SPIE Proceedings Vol. 0453:
Free-Electron Generators of Coherent Radiation
Charles A. Brau; Stephen F. Jacobs; Marlan O. Scully, Editor(s)

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