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Anomalously Strong Scattering of Spontaneously Produced Laser Radiation in the First Free-Electron Laser and Study of Free-Electron Two-Quantum Stark Lasing in an Electric Wiggler with Quantum-Wiggler Electrodynamics |
S. H. Kim |
Department of Physics, University of Texas at Arlington, PO Box 19059, Arlington, Texas 76019, USA |
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Cite this article: |
S. H. Kim 2006 Chin. Phys. Lett. 23 1422-1425 |
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Abstract We calculate the scattering cross section of an electron with respect to the spontaneously produced laser radiation in the first free-electron laser (FEL) with quantum-wiggler electrodynamics (QWD). The cross section is 1016 times the Thomson cross section, confirming the result obtained by a previous analysis of the experimental data. A QWD calculation show that spontaneous emission in an FEL using only an electric wiggler can be very strong while amplification through net stimulated emission is practically negligible.
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Keywords:
12.20.Ds
41.60.Cr
03.65.Pm
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Published: 01 June 2006
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