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A radiation-hard, steady state, digital imaging bolometer system

G.A Wurden1997年Fusion Engineering and DesignIF 1.7出版社

AbstractThe concept and design of a new type of bolometer system which can function with excellent spatial resolution and good time resolution in the next generation of long-pulse (or steady state), harsh-neutron environment, fusion plasmas, is outlined. It uses a cooled pinhole-camera design, employing a robust, passive, segmented radiation absorber. In one scenario, IR emission from the absorber's front surface is relayed by metal mirror optics to a shielded, high resolution IR video camera with ±0.01°C temperature resolution. In a second scenario, the matrix is viewed from its back side, in order to eliminate any extraneous IR radiation from the vessel or plasma. The system can make thousands of simultaneous `pixel' measurements at up to 50–60 Hz, with no wire leads through the vacuum interface.

日本語訳

次世代の長パルス(または定常状態)で、厳しい中性子環境下にある核融合プラズマにおいて、優れた空間分解能と良好な時間分解能を発揮できる新型ボロメータシステムの概念と設計について概説する。本システムは、冷却式ピンホールカメラ設計を採用し、堅牢で受動的な分割型放射吸収体を用いる。一つのシナリオでは、吸収体前面からの赤外放射を金属ミラー光学系により、±0.01°Cの温度分解能を有するシールドされた高分解能赤外ビデオカメラへ中継する。もう一つのシナリオでは、容器やプラズマからの不要な赤外放射を排除するため、マトリクスを背面から観測する。本システムは、真空界面を通過する配線を一切必要とせず、最大50~60 Hzの周波数で数千の同時「ピクセル」測定を行うことができる。

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