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Comparison of measured and computed neutron yield from PF1000 plasma focus device operated with deuterium gas
Radiation Physics and Chemistry ( IF 2.9 ) Pub Date : 2021-06-12 , DOI: 10.1016/j.radphyschem.2021.109633
Mohamad Akel , Pavel Kubes , Marian Paduch , Sing Lee

The measured current wave shapes of PF1000 plasma focus discharged at 16 kV in deuterium in the pressure range 1.05–1.2 Torr are fitted to the computed current wave shapes using the Lee model code. Very good fit is achieved which suggests that the code is configured very well for the PF1000 for these shots. This is borne out by the computed neutron yield arising from each shot agreeing well with the measured yield. The computed average yield of 8 shots at 1.2 Torr is 1.78 × 109 neutrons per shot (n/sh) compared to the measured average yield of (1.75 ± 0.2) × 109 (n/sh). The computed average yield of 16 shots at 1.05 Torr is 2.33 × 109 (n/sh) compared also to the measured average of (2.29 ± 0.2) × 109 (n/sh). The conclusion is that the neutron production of the PF1000 is well estimated by the Lee Code simply by fitting the computed current wave shape to the measured current wave shape.



中文翻译:

使用氘气操作的 PF1000 等离子体聚焦装置的测量和计算中子产额的比较

PF1000 等离子体焦点在 16 kV 压力下在 1.05-1.2 Torr 压力范围内以 16 kV 放电的测量电流波形与使用 Lee 模型代码计算的电流波形拟合。实现了非常好的拟合,这表明代码为这些镜头的 PF1000 配置得非常好。由每次发射产生的计算出的中子产额与测量产额非常吻合,证明了这一点。与测量的平均产量 (1.75 ± 0.2) × 10 9 (n/sh)相比,1.2 Torr 下 8 次发射的计算平均产量为 1.78 × 10 9中子每次发射(n/sh)。1.05 Torr 下 16 次发射的计算平均产量为 2.33 × 10 9 (n/sh),而测量平均值为 (2.29 ± 0.2) × 10 9(n/sh)。结论是 PF1000 的中子产生可以通过 Lee Code 很好地估计,只需将计算的电流波形拟合到测量的电流波形即可。

更新日期:2021-06-19
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