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冲击波精密调速技术是惯性约束聚变研究的关键技术之一. 针对冲击波精密调速诊断技术的要求, 以神光III原型上脉宽为3 ns的两台阶整形激光脉冲为源, 用石英晶体做窗口材料, 模拟了双冲击在石英晶体中传输和追赶的过程. 利用两发典型双冲击波调速的实验数据, 验证了神光III原型具有的精密调速能力. 实验结果表明, 在驱动源、 靶和诊断系统参数一致的条件下, 两发实验获得的实验结果中两次冲击出现的时刻, 冲击波速度都很一致. 通过精细分析, 发现在两次冲击交会的时刻, 干涉条纹清晰度和完整性变化最大, 最终数据处理获得的冲击波速度偏差也最大. 同时, 在二次冲击的冲击波速度有较大增加的条件下, 并没有观察到冲击波阵面的反射率的明显增加. 本文的实验结果作为一个数据依据, 为全面开展冲击波调速实验提供了有效的方法.The timing of multiple shock waves is crucial technique to the performance of inertial confinement fusion ignition targets. With the requirement for shock timing, the timing ability of Shen Guang-III prototype is analyzed by experimental data of two shots. The laser pulse in Shen Guang-III prototype is shaped in time scale, and the window material is z-cut quartz. The stream lines of two shock waves in quartz target are presented with Multi-1D program. Two steps of radiation drive two shock waves that coalesce in the quartz target, the resulting history, coalesce times, and transit times are observed in the stream lines. With the experiment results of two shots, the consistence of resulting history and coalesce times of two shock waves is provided under the same condition of laser pulse, target and diagnostic parameter. The differences in shock wave velocity, fringe contrast and quality occur at coalesce times of two shock waves. And the reflectivity of second shock wave does not increase compared with that of first shock wave. These experimental results and method provide the strong support for shock timing technique.
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Keywords:
- optical diagnosis /
- shock wave /
- timing /
- speckle
[1] Munro D H, Celliers P M, Collins G W, Gold D M, Da Silva L B, Haan S W, Cauble R C, Hammel B A, Hsing W W 2006 Phys. Plasmas 8 2245
[2] Boehly T R, Vianello E, Miller J E, Craxton R S, Collins T J B, Goncharov V N, Igumenshchev I V, Meyerhoferc D D, Hicks D G, Celliers P M, Collins G W 2006 Phys. Plasmas 13 056303
[3] Hicks D G, Celliers P M, Collins G W, Eggert J H, Moon S J 2003 Phys. Rev. Lett. 91 035502
[4] Celliers P M, Bradley D K, Collins G W, Hicks D G, Boehly T R, Armstrong W J 2004 Rev. Sci. Instrum. 75 4916
[5] Theobald W, Miller J E, Boehly T R, Vianello E, Meyerhofer D D, Sangste T C, Eggert J, Celliers P M 2006 Phys. Plasmas 13 122702
[6] Celliers P M, Collins G W, Da Silva L B, Gold D M, Cauble R, Wallace R J, Foord M E, Hammel B A 2000 Phys. Rev. Lett. 84 5564
[7] Celliers P M, Collins G W, Hicks D G, Koenig M, Henry E, Benuzzi-Mounaix A, Batani D, Bradley D K, Da Silva L B, Wallace R J, Moon S J, Eggert J H, Lee K K M, Benedetti L R, Jeanloz R, Masclet I, Dague N, Marchet B, Rabec M, Gloahec Le, Reverdin C H, Pasley J, Willi O, Neely D, Danson C 2004 Phys. Plasmas 11 L41
[8] Boehly T R, Munro D, Celliers P M, Olson R E, Hicks D G, Goncharov V N, Collins G W, Robey H F, Hu S X, Morozas J A, Sangster T C, Landen O L, Meyerhofer D D 2009 Phys. Plasmas 16 056302
[9] Wang F, Peng X S, Liu S Y, Li Y S, Jiang X H, Ding Y K 2010 Acta Optica Sinica 30 1327 (in Chinese) [王峰, 彭晓世, 刘慎业、 李永升, 蒋小华, 丁永坤 2010 光学学报 30 1327]
[10] He M Q, Dong Q L, Sheg Z M, Weng S M, Chen M, Wu H C, Zhang J 2009 Acta Phys. Sin. 58 363 (in Chinese) [何民卿, 董全力, 盛政明, 翁苏明, 陈民, 武慧春, 张杰 2009 58 363]
[11] Zhang Yi, Li Y T, Zheng Z Y, Liu F, Zhong J Y, Lin X X, Liu F, Lu X, Zhang J 2007 Chin. Phys. B 16 3728
[12] Lu J X, Wang Z, Liang J, Shan Y S, Zhou C Z, Xiang Y H, Lu Z, Tang X Z 2006 High Power Laser and Particle Beams 18 799 (in Chinese) [路建新, 王钊, 梁晶, 单玉生, 周创志, 向益淮, 陆泽, 汤秀章 2006 强激光与粒子束 18 799]
[13] Chen Y J, Yang Y Y, Zhuo Y M, Yang L M 2006 Optical Instruments 28 71 (in Chinese) [陈阳杰, 杨甬英, 卓永模, 杨李铭 2006 光学仪器 28 71]
[14] Olson R E, Bradley D K, Rochau G A, Collins G W, Leeper R J, Suter L J 2006 Rev. Sci. Instrum. 77 10E523
[15] Hicks D G, Boehly T R, Eggert J H, Miller J E, Celliers P M, Collins G W 2006 Phys. Rev. Lett. 97 (2) 025502
[16] You B Shi 2007 The Journal of Light Scattering 19 173 (in Chinese) [石右彬 2007 光散射学报 19 173]
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[1] Munro D H, Celliers P M, Collins G W, Gold D M, Da Silva L B, Haan S W, Cauble R C, Hammel B A, Hsing W W 2006 Phys. Plasmas 8 2245
[2] Boehly T R, Vianello E, Miller J E, Craxton R S, Collins T J B, Goncharov V N, Igumenshchev I V, Meyerhoferc D D, Hicks D G, Celliers P M, Collins G W 2006 Phys. Plasmas 13 056303
[3] Hicks D G, Celliers P M, Collins G W, Eggert J H, Moon S J 2003 Phys. Rev. Lett. 91 035502
[4] Celliers P M, Bradley D K, Collins G W, Hicks D G, Boehly T R, Armstrong W J 2004 Rev. Sci. Instrum. 75 4916
[5] Theobald W, Miller J E, Boehly T R, Vianello E, Meyerhofer D D, Sangste T C, Eggert J, Celliers P M 2006 Phys. Plasmas 13 122702
[6] Celliers P M, Collins G W, Da Silva L B, Gold D M, Cauble R, Wallace R J, Foord M E, Hammel B A 2000 Phys. Rev. Lett. 84 5564
[7] Celliers P M, Collins G W, Hicks D G, Koenig M, Henry E, Benuzzi-Mounaix A, Batani D, Bradley D K, Da Silva L B, Wallace R J, Moon S J, Eggert J H, Lee K K M, Benedetti L R, Jeanloz R, Masclet I, Dague N, Marchet B, Rabec M, Gloahec Le, Reverdin C H, Pasley J, Willi O, Neely D, Danson C 2004 Phys. Plasmas 11 L41
[8] Boehly T R, Munro D, Celliers P M, Olson R E, Hicks D G, Goncharov V N, Collins G W, Robey H F, Hu S X, Morozas J A, Sangster T C, Landen O L, Meyerhofer D D 2009 Phys. Plasmas 16 056302
[9] Wang F, Peng X S, Liu S Y, Li Y S, Jiang X H, Ding Y K 2010 Acta Optica Sinica 30 1327 (in Chinese) [王峰, 彭晓世, 刘慎业、 李永升, 蒋小华, 丁永坤 2010 光学学报 30 1327]
[10] He M Q, Dong Q L, Sheg Z M, Weng S M, Chen M, Wu H C, Zhang J 2009 Acta Phys. Sin. 58 363 (in Chinese) [何民卿, 董全力, 盛政明, 翁苏明, 陈民, 武慧春, 张杰 2009 58 363]
[11] Zhang Yi, Li Y T, Zheng Z Y, Liu F, Zhong J Y, Lin X X, Liu F, Lu X, Zhang J 2007 Chin. Phys. B 16 3728
[12] Lu J X, Wang Z, Liang J, Shan Y S, Zhou C Z, Xiang Y H, Lu Z, Tang X Z 2006 High Power Laser and Particle Beams 18 799 (in Chinese) [路建新, 王钊, 梁晶, 单玉生, 周创志, 向益淮, 陆泽, 汤秀章 2006 强激光与粒子束 18 799]
[13] Chen Y J, Yang Y Y, Zhuo Y M, Yang L M 2006 Optical Instruments 28 71 (in Chinese) [陈阳杰, 杨甬英, 卓永模, 杨李铭 2006 光学仪器 28 71]
[14] Olson R E, Bradley D K, Rochau G A, Collins G W, Leeper R J, Suter L J 2006 Rev. Sci. Instrum. 77 10E523
[15] Hicks D G, Boehly T R, Eggert J H, Miller J E, Celliers P M, Collins G W 2006 Phys. Rev. Lett. 97 (2) 025502
[16] You B Shi 2007 The Journal of Light Scattering 19 173 (in Chinese) [石右彬 2007 光散射学报 19 173]
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