惯性约束核聚变驱动器高强度三倍频系统输出能力分析

以惯性约束核聚变(ICF)驱动器———原型装置(TIL)的研制为背景,针对原型装置首束达标的要求,采用理论模拟指导实验,实验结果考核程序的方法,对影响惯性约束核聚变驱动器大口径高强度三倍频(THG)效率的多种因素进行了详细的分析和研究,并对惯性约束核聚变驱动器高强度三倍频系统的输出能力进行了详细的分析。结果表明,当I1ω(基频光功率密度)为2.7 GW/cm2左右时,实测效率为50%~55%,而理论计算值为60%左右,理论结果和实验结果符合得很好,为原型装置的八束达标和功率平衡提供了相应的实验依据和计算工具。

Output-Ability Analysis of High-Intensity Third Harmonic Generation System for ICF Driver

By basing on the study and manufacture of the technical integration experiment line (TIL) prototype laser facility, and using the method that theoretical simulations guide experiments and experiment results check programs, the actors affecting third harmonic generation (THG) efficiency for large-aperture, high-intensity inertial confinement fusion (ICF) laser facility have been analyzed and studied in detail. Furthermore, the output-ability of THG system for ICF driver has been discussed adequately. As shown through experiment results, when average drive irradiance of fundamental light, I1ω is 2.7 GW/ cm2, measured value of THG efficiency is 50%～55% and the theory value is 60%, which indicates that the experiment result can be agreed with the theory value well. The experiment results will provide experiment proofs and calculation tools for eight beam eligibility and power balance of prototype laser facility.