Yields of neutrons produced in various laser fusion experiments conducted in recent decades are compared with each other. It has surprisingly been found that there is a possibility to make an overall elucidation of the variance in the number of neutrons produced in the various experiments. The common method is based on definition of the energy conversion efficiency as a ratio between the energy carried out by neutrons produced through the fusion reaction and the input energy given by laser energy, E, focused on a target. The neutron-yield – laser-energy (Y–E) diagram is the basic chart used to interpret the spread of experimental data in terms of the experimental efficiency of the laser-matter interaction. Experiments carried out using a single laser system show that laser energy dependence of the yield can be well-characterized by a power law, Y = QE^α, where Q is the parameter reflecting possible dependence on the pulse duration, laser intensity, laser contrast ratio, focal geometry, target structure, etc. [1, 2]. Sorting the values of the neutron yields obtained in various experiments shows that the power law Y = Q E^1.65 is suitable to determine lines in the Y–E diagram each of them, where the value of Q is associated with quality of experimental conditions [3]. This sorting shows the order-of-magnitude differences in yields found in various experiments, which can be characterized by the value of the parameter Q. Due to the easy feasibility and the large number of DD fusion experiments performed, the overall Y-E diagram gives a chance to identify suitable laser systems for effective DD fusion experiments. It can, therefore, be assumed that some of the conclusions of these experiments could also be applied to the experimental arrangement suitable for optimizing p¹¹B fusion.

将近几十年来在各种激光聚变实验中产生的中子产率进行了比较。令人惊讶地发现，有可能全面阐明在各种实验中产生的中子数量的变化。通用方法基于能量转换效率的定义，即通过聚变反应产生的中子所产生的能量与激光能量所给出的输入能量之比，Ë，专注于目标。中子屈服–激光能量（ÿ–Ë）图是用于根据激光与物质相互作用的实验效率来解释实验数据传播的基本图表。使用单个激光系统进行的实验表明，可以通过幂定律很好地表征激光对产量的能量依赖性，ÿ = 量化宽松^α，其中问 是反映可能依赖于脉冲持续时间，激光强度，激光对比度，焦点几何形状，目标结构等的参数。[1个， 2]。对各种实验中获得的中子屈服值进行排序表明，幂定律ÿ = 量化宽松^1.65适用于确定Y–E 画出它们各自的价值 问 与实验条件的质量有关[3]。这种排序显示了在各种实验中发现的产量的数量级差异，可以通过参数的值来表征问。由于简单的可行性和大量的DD融合实验，叶该图为确定有效的DD融合实验的合适激光系统提供了机会。因此，可以假设这些实验的某些结论也可以应用于适合于优化p ¹¹ B融合的实验装置。