Pulse Power for the Rapier "B Amplifier" KrF Laser System
Abstract
The RAPIER "B Amplifier" electron beam system has been completed and produces 36kJ of 450KeV electrons in a 150ns pulse to be used for pumping a KrF laser amplifier. The operating characteristics of the system have been studied. The efficiency of conversion of energy stored in the Marx generator to electron beam output is 72 3% including an 89% designed transfer efficiency. The system is triggered electrically with a 150ns delay from the command trigger to machine output. The rms jitter for the six individual modules range from 1.6 to 3.9ns and the average timing difference between the earliest and latest module output is 12ns. Film dosimetry indicates no observable interaction between the magnetically isolated beams in the module diodes and fluorescence measurements do not indicate strong interaction in the gas filled laser cell. Current probe measurements show no significant change in beam size during the output pulse. Energy deposition profiles agree reasonably with Monte Carlo calculations up to pressures of 1.5 atm.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1983
- Accession Number
- ADA638229
Entities
People
- L. G. Schlitt
Organizations
- Lawrence Livermore National Laboratory