Investigation of Optimum Magnet Geometries for Gain-Expanded Free-Electron Lasers
Final rept. 15 Aug 1981-31 Dec 1982
STANFORD UNIV CA W W HANSEN LABS OF PHYSICS
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The purpose of this research was the identification of the critical magnet and storage ring parameters for optimization of the efficiency, power output and gain of gain-expanded storage ring free electron lasers. While previous research had identified the basic properties of these devices, the approximations and simplifications employed in these efforts for solution of the equations of motion had led to some ambiguities which were not readily resolvable within the framework of the model employed. To resolve these ambiguities, a model was developed for the FEL wiggler magnet which permits an exact solution of the equations of motion. Using this model numerical techniques have been employed to identify the dependence of the laser power output, gain, and efficiency on the magnet parameters.
- Electrical and Electronic Equipment
- Lasers and Masers
- Nuclear Physics and Elementary Particle Physics