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Title: Classical and quantum approaches to the free-electron laser

Thesis/Dissertation ·
OSTI ID:5500848

The classical spontaneous emission from relativistic electrons injected into conventional and tapered free electron lasers undulators is investigated both theoretically, by solving the relative equations of motion, and numerically, using the obtained results. The evolution of the optical field in the undulator's cavity is analyzed both quantum mechanically, by solving perturbatively the Dirac equation in the laboratory frame and the Schroedinger equation in a relativistic moving frame. The classical aspect of the results obtained is emphasized. The evolution of the fields is then studied classically for electron beams with a realistic energy and angular spread. The relative gain formulas are then derived and compared to the formula found both classically and quantum-mechanically in the previous chapters.

Research Organization:
California Univ., Santa Barbara (USA)
OSTI ID:
5500848
Resource Relation:
Other Information: Thesis (Ph. D.)
Country of Publication:
United States
Language:
English