The Axial Velocity Spread Acceptance of Free Electron Lasers.
Scientific rept. 15 Jun 82-14 Jun 84,
TEL-AVIV UNIV (ISRAEL) QUANTUM ELECTRONICS LAB
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We present various criteria for the definition of axial velocity spread acceptance of free electron lasers FEL, and provide analytical approximations, numerical calculations and design curves for this parameter in the low, high, and intermediate gain regimes. This parameter is used to calculate the energy spread acceptance, emittance acceptance and other e-beam quality parameters. A special emphasis is put on the design considerations of short wavelength X-ray FELs. For this reason, the parameters calculation in this work is limited to the tenuous beam regimes only, and parameters are calculated for intermediate and moderately high gain regimes, which correspond to the low quality factor of X-ray resonators in the present state of the art.
- Lasers and Masers
- Numerical Mathematics