1. 核融合実験用固体レーザーの現状と炉用ドライバーへの展望 : 慣性核融合ドライバー技術

概要

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The progress in development of high-power glass laser systems during the past 30 years is remarkable. NIF(National Ignition Facility), which will deliver 1.8MJ at 0.35μm is now under construction in the United States. Recently, technology that smoothes out the focal pattern has been developed to a great extent. RPP(Random Phase Plate)and PCL(Partially Coherent Laser)both gave an excellent focal pattern with standard deviation of 3% in the Gekko XII laser system. In the US, Japan, and Europe, several ultra-short pulse lasers were developed for research on "fast ignition". "Fast ignition" is a method which will reduce the total required laser energy for ignition. Because a diode-pumped solid state laser can operate at a repetition rate of over 10Hz with an efficiency of about 10%, research area of high-power systems at the 1kW level started to focus on the development of a driver for a commercial laser fusion reactor.
社団法人プラズマ・核融合学会の論文
1999-02-25