Review of Two-Stage FEL Research at KMS Fusion.
Abstract
This paper reviews continuing work in support of a two-stage free electron laser (FEL) experiment to be performed at the University of California, Santa Barbara. The quasioptical resonant cavity structure that will be used in this experiment is described and scaling of second stage output with a number of system parameters is given. Absorption, diffraction, and mode conversion losses are calculated for the long wavelength pump field for a simple unoptimized cavity design, and an experimental facility to measure losses in a test cavity is described, a design concept for a permanent magnet helical wiggler to be used in this experiment is presented, Deficiencies of the present accelerator are described and corrective measures are suggested. A conceptual design for an accelerator that could be used with a high power, two-stage FEL is presented. The three-dimensional wave equation for an FEL with either a magnetic of electromagnetic pump field is derived and an incremental solution in cylindrical coordinates is developed. A resonant particle model is used to obtain information on phase shift and gain in two-dimensional cylindrically symmetric systems. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 21, 1983
- Accession Number
- ADA128623
Entities
People
- H. R. Hiddleston
- H. Takeda
- R. Holsinger
- S. B. Segall
- S. Vonlaven