脉冲激光起爆光敏炸药特性  

Characteristics of Pulsed Laser Initiation of Light-Sensitive Explosives

作　　者：王等旺[1] 徐海斌[1] 马泽龙 徐畅 刘小东[1] 张云峰 赵奇峰[1] WANG Dengwang;XU Haibin;MA Zelong;XU Chang;LIU Xiaodong;ZHANG Yunfeng;ZHAO Qifeng(National Key Laboratory of Intense Pulsed Radiation Simulation and Effect,Northwest Institute of Nuclear Technology,Xi an 710024,Shaanxi,China)

机构地区：[1]西北核技术研究所强脉冲辐射环境模拟与效应全国重点实验室,陕西西安710024

出　　处：《兵工学报》2023年第5期1350-1357,共8页Acta Armamentarii

摘　　要：光敏炸药乙炔银-硝酸银加载技术是模拟强脉冲X射线结构响应的重要手段之一,采用脉冲激光起爆是一种不同于传统的闪光高压起爆方式,其优势在于增强了操作可控性、异型加载实现性和同时加载时效性。对激光起爆机理进行针对性分析,介绍激光起爆平台和乙炔银-硝酸银材料性质。针对光敏炸药的光吸收特性开展激光起爆实验,获得193 nm/266 nm/532 nm/1064 nm等波长激光起爆阈值分别为5.07 mJ/mm^(2)、6.77 mJ/mm^(2)、7.21 mJ/mm^(2)、10.61 mJ/mm^(2),并通过爆速验证完全爆轰过程,用辐射光谱分析表征反应过程元素生成。所得成果对于脉冲激光起爆过程、机理及爆炸载荷规律研究,以及光敏炸药模拟X射线结构响应加载技术具有很好的技术支持作用。The silver acetylide-silver nitrate loading technology is an important means to simulate the structural response of intense pulsed X-ray.Pulsed laser initiation is different from the traditional method of initiation by light-induced high pressure.Its advantage lies in the enhanced operating controllability,the implementation of special-shaped load and the timeliness of simultaneous loading.The laser initiation mechanism is analyzed,the laser initiation platform and the properties of silver acetylide-silver nitrate material are introduced,and then the laser initiation experiment is carried out according to the light absorption characteristics of light-sensitive explosives.The initiation thresholds of laser with wavelengths of 193 nm/266 nm/532 nm/1064 nm are respectively obtained,namely,5.07 mJ/mm^(2),6.77 mJ/mm^(2),7.21 mJ/mm^(2) and 10.61 mJ/mm^(2),and the complete initiation process is verified by detonation velocity.The generation of elements in the reaction process is characterized by radiation spectroscopy.This work can provide technical support for the study of pulsed laser initiation process and mechanism,explosion load law,and the loading technology of using light-sensitive explosives to simulate X-ray structural response.

关 键 词：光敏炸药 脉冲激光 乙炔银-硝酸银 阈值 结构响应 

分 类 号：TM35[电气工程—电机]