Annual Report to the Strategic Defense Initiative Organization on the Free-Electron Laser Driven by the NIST CW Microtron
Annual rept. 1 Apr 1988-31 Mar 1989
NATIONAL INST OF STANDARDS AND TECHNOLOGY GAITHERSBURG MD
Pagination or Media Count:
Excellent progress has been made during the past year on all areas critical to the NIST-NRL FEL project. A contract for the construction of a wiggler was signed early in this reporting period. The contractor has completed the engineering design of the wiggler and is well along in construction. Several methods to increase the peak current in the RTM were studied. The conceptual design of the injector for the method selected was completed. A study on the problem of mirror damage has been completed, and commercial suppliers of mirrors that can withstand the high intracavity power of the FEL have been identified. The design of the room in which the FEL is located has been improved, and the design of the users area has been completed. Calculations of FEL performance have been extended to include short-pulse effects and the effects of wiggler magnetic field errors. A major activity in this period has been preparation of the RTM for one-pass acceleration to 17 MeV. One-pass tests were started, and preliminary measurements of beam quality were better than design goals by a factor of two.
- Lasers and Masers