KrF激光照射约束层靶驱动产生高速飞片研究  

High-speed flyers driven by KrF laser irradiatied flyer-targets with substrate

作　　者：殷倩[1] 汤秀章[1] 李业军[1] 王钊[1] 田宝贤[1] 张品亮[1] 

机构地区：[1]中国原子能科学研究院核技术应用研究所,北京102413

出　　处：《航天器环境工程》2016年第3期300-304,共5页Spacecraft Environment Engineering

基　　金：国家自然科学青年基金项目(编号:11505299)

摘　　要：微小空间碎片的超高速撞击对航天器性能有重要影响。为了研究撞击损伤机制,在"天光一号"装置上开展了Kr F准分子激光照射约束层靶产生高速飞片的实验研究,利用成像速度干涉仪(Imaging-VISAR)对飞片自由面速度进行诊断。采用1.9 J准分子激光将10μm的Al飞片加速至12 km/s,且整个过程为准等熵加载。研究结果表明准等熵加载下激光能量转化为飞片动能的效率(达39.4%)比冲击加载要高得多,飞片速度也高于后者。The effects of the micro-space debris hypervelocity impact on the properties of spacecraft are significant. In order to study the mechanism of the impact damage, this paper studies experimentally the launching high speed flyer by using HEAVEV-I KrF excimer laser irradiating flyer targets with substrate,and the velocity of the flyer is diagnosed by Imaging-VISAR. The experimental results show that the velocity of the flyer of 10μm thickness is up to 12km/s driven by 1.9J KrF excimer laser. The efficiency of the laser energy translated to the kinetic energy of the flyer can be up to 39.4%. And the process of loading is quasi-isentropic. The experiments indicate that the efficiency of the laser energy translation into the kinetic energy of the flyer of quasi-isentropic loading is much higher than the shocking load.

关 键 词：KRF准分子激光 空间碎片模拟 约束层靶 高速飞片 能量转化效率 试验研究 

分 类 号：V524.3[航空宇航科学与技术—人机与环境工程]