High nuclear reactivity within submillimetric domains in the space structure of the pinch of focused discharges has been studied. The authors report on experiments that describe the emission of D/sup +/ beams and the occurrence of such nuclear fusion reactions for W=5-10 kJ plasma focus (PF) machines operating in the neutron-optimized mode. The results indicate that localized high-density plasma domains of 100- mu m diameter, n/sub i/or=10/sup 21/ cm/sup -3/, and tau =1-5 ns contribute to the bulk ( approximately 70%) of the observed fusion reactions in the machines. The generality of the observations indicates that the same conclusion is valid for optimized PF machines with any value of W.
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机译：研究了高核反应性的高核反应性在集中放电的夹具的空间结构中。作者报告了描述D / SUP + /梁的发射的实验以及W = 5-10 kJ等离子体聚焦（PF）机器在中子优化模式下运行的这种核融合反应的发生。结果表明，直径为100-mu m的局部高密度等离子体结构域，n / sub i / <或= 10 / sup 21 / cm / sup -3 /，tau = 1-5 ns有助于散装（约70％）在机器中观察到的熔融反应。观察的一般性表明，相同的结论对于具有W的任何值的优化PF机器是有效的。
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