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| MOC02 |
Optimization of a High Efficiency Free Electron Laser Amplifier |
electron, FEL, undulator, radiation |
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- E. Schneidmiller, M.V. Yurkov
DESY, Hamburg, Germany
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Technique of undulator tapering in the post-saturation regime is used at the existing X-ray FELs for increasing the radiation power. We present comprehensive analysis of the problem in the framework of one-dimensional and three-dimensional theory. We find that diffraction effects essentially influence on the choice of the tapering strategy. Our studies resulted in a general law of the undulator tapering for a seeded FEL amplifier as well as for SASE FEL.
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Slides MOC02 [24.462 MB]
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