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Investigation of a double cylindrical Z pinch

E Bar-Avraham, Y Segal1986年Plasma Physics and Controlled FusionIF 2.2出版社

The double cylindrical Z pinch has been investigated experimentally and the relevant parameters were computed with a modified snowplow model. The apparatus had a radius of approximately 10 cm, an anode-cathode distance of 3.6 cm, and a capacitor bank of 1.7410-4 Farad operated at 16.5 kV with a filling of approximately 1016 molecules cm-3. A plasma with a density of approximately 1018 particles/cm2 with an ion temperature of approximately 300 eV was collected at the center of the chamber. The plasma emitted up to 107 DD neutrons, soft and hard X-rays. The pulse length was approximately 400 ns, considerably longer than a neutron pulse from a simple pinch. The plasma expanded in an orderly way after the emission. However, most of the neutrons and X-rays originated from an acceleration mechanism as concluded from the shape and height of the neutron pulse and from the computations. A very long X-ray pulse of a few mu secs, reported earlier, has not been observed.

日本語訳

二重円筒Zピンチを実験的に調査し、関連パラメータを修正スノープローモデルを用いて計算した。装置の半径は約10cm、陽極-陰極間距離は3.6cm、キャパシタバンクは1.7410⁻⁴ファラドであり、16.5kVで動作し、充填密度は約10¹⁶分子cm⁻³であった。密度約10¹⁸粒子/cm²、イオン温度約300eVのプラズマがチャンバー中央で収集された。プラズマは最大10⁷個のDD中性子と軟X線・硬X線を放出した。パルス幅は約400nsであり、単純ピンチからの中性子パルスよりもかなり長かった。放出後、プラズマは秩序立った方法で膨張した。しかしながら、中性子パルスの形状と高さ、および計算から、中性子とX線の大部分は加速メカニズムに由来することが結論付けられた。以前報告された数マイクロ秒の非常に長いX線パルスは観測されなかった。

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