喷气Z箍缩负载的质量线密度确定

Determination of line mass density for the gas load of a gas puff Z-pinch

喷气 Z箍缩的负载参数 (如质量线密度及半径 )必须和脉冲驱动源的电流 (幅值和上升时间 )相匹配。作者利用微型快速电离规测量了喷气 Z箍缩中超音速喷嘴产生的气体负载的密度分布 ,并由此得到了负载质量线密度为 4 3μg/ cm。

For a particular pulsed-power generator, i.e.with, fixed pinch current as well as its rise time, the Z-pinch load (initial radius r 0 and line mass density m 0 ) should be optimized to maximize the X-radiation. The radial density profile of the gas load produced by a supersonic nozzle used in gas puff z-pinch was measured with a miniature fast ionization gauge and it yields a line mass density of 43 μg/cm meets the requirement of the nozzle design.