| 基于压电探测判定激光支持燃烧波和爆轰波的点燃阈值 |
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| 引用本文： | 张泽海,舒挺,张军,仲晓军,朱俊.基于压电探测判定激光支持燃烧波和爆轰波的点燃阈值[J].强激光与粒子束,2011,23(9):0. |
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| 作者姓名： | 张泽海 舒挺 张军 仲晓军 朱俊 |
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| 作者单位： | 1.四川大学 电子信息学院, 成都 61 0064; |
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| 基金项目： | 国家高技术发展计划项目; 国家自然科学基金项目(11075211); 湖南省高校科技创新团队基金项目 |
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| 摘 要： | 为了获得激光支持燃烧波和爆轰波的点燃阈值，采用压电探测器检测波长为1 064 nm的Nd:YAG激光作用在铝靶表面所产生的应变和冲压。从实验结果观察到压电信号的变化分为3个阶段，分别为光热弹性应变阶段、等离子体增强耦合阶段和激光支持爆轰波对靶表面的压力阶段，并从理论上研究了这3个阶段的激光与靶材料相互作用的机理,从而可以从压电信号是否发生跃变判断出激光支持燃烧波和激光支持爆轰波的点燃阈值，与其它方法所得到结果基本吻合。
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| 关 键 词： | 激光支持燃烧波和激光支持爆轰波 压电探测 点燃阈值 光热弹性应变 |
| 收稿时间： | 1900-01-01; |
Study of relativistic klystron amplifier input cavity with dual coupling holes by equivalent circuit method |
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| Zhang Zehai,Shu Ting,Zhang Jun,Zhong Xiaojun,Zhu Jun.Study of relativistic klystron amplifier input cavity with dual coupling holes by equivalent circuit method[J].High Power Laser and Particle Beams,2011,23(9):0. |
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| Authors: | Zhang Zehai Shu Ting Zhang Jun Zhong Xiaojun Zhu Jun |
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| Institution: | 1.College of Electronic Information,Sichuan University,Chengdu 610064,China;2.Institute of Applied Electronics,CAEP,P.O.Box 919-1001,Mianyang 621900,China;3.North China Research Institute of Electro-Optics,Beijing 100015,China |
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| Abstract: | An RKA(relativistic klystron amplifier) input cavity with dual coupling holes is analyzed by means of equivalent circuit method,and the scattering matrix(S-matrix) of the coupling system is obtained.Based on the derivative of phase of S21 with respect to its angular frequency,the expression of loaded quality(Q) factor of the system is derived.The value of loaded Q factor can be obtained upon the resonant frequency and group delay,given by high frequency field analysis software.The result is validated agains... |
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| Keywords: | relativistic klystron amplifier input cavity equivalent circuit loaded quality factor group delay |
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