A Monte Carlo (MC) code simulating the kinetics of two-particle collisions has shown to have certain advantages in the spectral analysis of neutrons from fast-ignition inertial confinement fusion (ICF). The MC code quickly displays neutron spectra produced in the expected fusion plasma kinetics (incl. ion energy spectrum, anisotropy, and collision geometry). This allows to explore various potential mechanisms of neutron production without using time-consuming hydrodynamic or particle simulations and makes it possible to give a feedback to ongoing experiments. The validity of this model was demonstrated in the ”cone-free-shell” fast ignition experiment at the GEKKO-XII - LFEX laser facility, where the model provided a clear explanation for the significant spectral modulation of D(d, n)³He neutrons generated through the interaction between a high-power laser and a long-scale plasma.

模拟两粒子碰撞动力学的蒙特卡罗（MC）代码在快速点火惯性约束聚变（ICF）中子的光谱分析中显示出某些优势。MC代码可快速显示以预期的聚变等离子体动力学产生的中子光谱（包括离子能谱，各向异性和碰撞几何）。这允许探索中子产生的各种潜在机制，而无需使用费时的流体动力学或粒子模拟，并有可能为正在进行的实验提供反馈。该模型的有效性在GEKKO-XII-LFEX激光设备的“无锥壳”快速点火实验中得到了证明，该模型为D（d，n）³的明显光谱调制提供了清晰的解释。他通过高功率激光和长距离等离子体之间的相互作用产生中子。