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首页> 外文期刊>Plasma physics and controlled fusion >Neutron energy distribution and temporal correlations with hard x-ray emission from a hundreds of joules plasma focus device
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Neutron energy distribution and temporal correlations with hard x-ray emission from a hundreds of joules plasma focus device

机译：来自数百焦耳等离子体聚焦装置的中子能量分布和与硬X射线发射的时间相关性

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摘要

In this paper, experimental measurements of neutron energy distribution and hard x-ray emission from a 320J deuterium operated plasma focus device are presented. Temporal measurements of neutron and hard x-ray emission are studied using different arrangements of six scintillatorphotomultiplier detector systems, located either radially or axially with respect to the focus symmetry axis. The axial-to-radial ratio of both total neutron yield and neutron energies indicates anisotropic emission, which is consistent with a 100 keV kinetic energy of the deuterons in the axial direction. The energy spread among different shots was similar to 0.5 MeV in the axial direction which is 2.5 times the spread in the radial direction. Furthermore, temporal differences on hard x-rays and neutron production over each direction are found. These differences show correlation with neutron energies. This could be related to the existence of two temporally separated neutron production times corresponding to different moments during the plasma focus discharge.
机译：在本文中，介绍了从320J氘操作等离子体聚焦装置获得的中子能量分布和硬X射线发射的实验测量结果。使用六个闪烁体光电倍增管探测器系统的不同布置，研究了中子和硬X射线发射的时间测量，该布置相对于聚焦对称轴径向或轴向定位。总中子产率和中子能量的轴向与径向之比表示各向异性发射，这与氘核在轴向上的100 keV动能一致。在不同发射之间的能量散布在轴向上类似于0.5 MeV，是径向散布的2.5倍。此外，发现在每个方向上硬X射线和中子产生的时间差异。这些差异显示出与中子能量的相关性。这可能与存在两个在时间上分开的中子产生时间相对应，这些时间对应于等离子体聚焦放电期间的不同时刻。

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