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Radiative collapses in Z-pinches with axial mass losses

L Bernal, H Bruzzone2002年Plasma Physics and Controlled FusionIF 2.2出版社

The possibility of producing radiative collapses in pinches is studied using a 1/2D numerical model with pure bremsstrahlung as the source of radiation, including anomalous resistivities and axial mass losses. The results of the model show the existence of both a lower and an upper limit value of the pinch current to produce collapses. It is also shown that a minimum initial pinch radius (which depends on the initial particle density) is required in order to obtain radiative collapses. The inclusion of axial mass losses makes the production of the collapse more difficult, because it enhances the anomalous resistivity heating.

日本語訳

ピンチにおける放射状崩壊の生成可能性を、放射源として純粋な制動放射を用いた1/2次元数値モデルによって研究し、異常抵抗と軸方向質量損失を含める。モデルの結果は、崩壊を生成するためのピンチ電流には下限値と上限値の両方が存在することを示している。また、放射状崩壊を得るためには、最小のピンチ半径(これは初期粒子密度に依存する)が必要であることも示されている。軸方向質量損失を含めると、異常抵抗加熱を増強するため、崩壊の生成はより困難になる。

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