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
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摘要: 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43μg/cm，这符合原定的喷嘴设计指标。Abstract: For a particular pulsed-power generator, i.e., fixed pinch current as well as its rise time, the z-pinch load (initial radius r0 and line mass density m0 ) 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 that is in agreement with the nozzle design.
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Key words:
- gas puff z-pinch /
- supersonic nozzle /
- gas density /
- ionization gauge
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