搜索

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

基于光束参量优化实现直接驱动靶丸均匀辐照

李宏勋 张锐 朱娜 田小程 许党朋 周丹丹 宗兆玉 范孟秋 谢亮华 郑天然 李钊历

引用本文:
Citation:

基于光束参量优化实现直接驱动靶丸均匀辐照

李宏勋, 张锐, 朱娜, 田小程, 许党朋, 周丹丹, 宗兆玉, 范孟秋, 谢亮华, 郑天然, 李钊历

Uniform irradiation of a direct drive target by optimizing the beam parameters

Li Hong-Xun, Zhang Rui, Zhu Na, Tian Xiao-Cheng, Xu Dang-Peng, Zhou Dan-Dan, Zong Zhao-Yu, Fan Meng-Qiu, Xie Liang-Hua, Zheng Tian-Ran, Li Zhao-Li
PDF
导出引用
  • 在直接驱动惯性约束聚变中,实现靶丸均匀辐照对靶丸压缩特性至关重要,通常要求靶丸表面辐照不均匀度小于1%.现有很多优化高功率激光装置均匀辐照性能的光束排布方案,但受到实际入射光束参量的限制,系统均匀辐照性能难以实现最优化.由于初始辐照不均匀度对靶丸对称压缩特性至关重要,为进一步提高靶丸初始辐照的均匀性,并增加系统对打靶过程中由于靶丸直径变化引起的辐照不均匀的宽容度,从而实现靶丸的中心对称压缩,本文对靶丸表面光束的辐照不均匀度进行了数学分析,并研究了不同入射光束参量下的单光束因子项及其对靶丸均匀辐照的影响.结果表明: 对于已知的光束排布结构,存在最优的入射光束参量,使辐照均匀度最高.证明了通过优化入射光束参量提高系统均匀辐照性能的可行性.此外,研究表明单光束因子项与几何因子项存在一定的匹配关系,可通过分析几何因子项的特征,求取与之匹配的单光束因子项,进而获得最优的入射光束参量.本工作为直接驱动靶丸均匀辐照系统的设计和优化提供了一种有效的方法.
    Laser driven fusion requires a high-degree uniformity in laser energy deposition in order to achieve the high-density compression required for sustaining a thermonuclear burn. Nowadays, uniform irradiation of capsule is still a key issue in direct drive inertial confinement fusion. The direct drive approach is to drive the target with laser light, by irradiating it with a large number of overlapping laser beams. In the direct drive scheme, the laser deposition pattern on the target can be decomposed into a series of Legendre spherical harmonic modes. The high mode (shorter wavelength) nonuniformity can lead to Rayleigh-Taylor instability, which may result in the failure of target compression. This nonuniformity can be suppressed by thermal conduction and beam conditioning technologies, such as continuous phase plate, smoothing by spectral dispersion and polarization smoothing. The low mode (longer wavelength) nonuniformity is related to the number, orientation and power balance of laser beams, which is hard to suppress by thermal conduction and beam conditioning technologies. Generally, the nonuniformity of laser irradiation on a directly driven target should be less than 1% (root mean square, RMS), to meet the requirement for symmetric compression. Several methods have been proposed to optimize the irradiation configuration in direct drive laser fusion, such as truncated icosahedron with beams at the 20 faces and 12 vertices of an icosaherdron, dodecahedron-based irradiation configurations, self-organizing electrodynamic method, etc. However, limited by the different parameters of incident beams, the irradiation uniformity is often not satisfactory. Therefore, it is necessary to find new way to improve the irradiation uniformity and make it more robust. According to the analytical result, the irradiation nonuniformity can be decomposed into the single beam factor and the geometric factor. Simulation results show that the single beam factor is mainly determined by the parameters of the incident beams, including beam pattern, beam width and beam wavelength. By analyzing and simulating the single beam factor with different incident beam parameters, and comparing the single beam factor with the geometric factor, a matching relationship between them is found by using the optimized parameters. Based on the simulation results, a method to optimize the incident beam parameters is proposed, which is applied to the 32-beam and 48-beam irradiation configurations. The results show that there is a set of optimal incident beam parameters which can attain the highest irradiation uniformity for a given configuration. The feasibility to achieve more uniform irradiation by optimizing the incident beam parameters is proved. When the single beam factor is optimized in a directly driven inertial confinement fusion system, the restrictions on the beam pointing error and power imbalance between incident beams can be relaxed. The results provide an effective method of designing and optimizing the uniform irradiation system of direct drive laser facility.
      通信作者: 张锐, zhangrui8s-1@caep.cn
    • 基金项目: 国家自然科学基金(批准号:61475145)资助的课题.
      Corresponding author: Zhang Rui, zhangrui8s-1@caep.cn
    • Funds: Project supported by the National Natural Science Foundation of China (Grant No. 61475145).
    [1]

    Lindl J 1995 Phys. Plasmas 2 3933

    [2]

    Miller G H, Moses E I, Wuest C R 2004 Opt. Eng. 43 2841

    [3]

    Fleurot N, Cavailler C, Bourgade J L 2005 Fusion Eng. Des. 74 147

    [4]

    Zheng W, Zhang X, Wei X, Jing F, Sui Z, Zheng K, Yuan X, Jiang X, Su J, Zhou H, Li M 2008 J. Phys. Conf. Ser. 112 032009

    [5]

    Bodner S E, Colombant D G, Gardner J H, Lehmberg R H, Obenschain S P, Phillips L, Schmitt A J, Sethian J D, McCrory R L, Seka W, Verdon C P 1998 Phys. Plasmas 5 1901

    [6]

    Hallo L, Olazabal-Loumé M, Ribeyre X, Dréan V, Schurtz G, Feugeas J L, Breil J, Nicolaï P, Maire P H 2008 Plasma Phys. Control. Fusion 51 014001

    [7]

    Boehly T R, Brown D L, Craxton R S, Keck R L, Knauer J P, Kelly J H, Kessler T J, Kumpan S A, Loucks S J, Letzring S A, Marshall F J 1997 Opt. Commun. 133 495

    [8]

    Bodner S E 1981 J. Fusion Energy 1 221

    [9]

    Skupsky S, Lee K 1983 J. Appl. Phys. 54 3662

    [10]

    Emery M H, Gardner J H, Boris J P 1982 Phys. Rev. Lett. 48 677

    [11]

    Gardner J H, Bodner S E 1981 Phys. Rev. Lett. 47 1137

    [12]

    Zhang R, Li P, Su J Q, Wang J J, Li H, Geng Y C, Liang Y, Zhao R C, Dong J, Lu Z G, Zhou L D, Liu L Q, Lin H H, Xu D P, Deng Y, Zhu N, Jing F, Sui Z, Zhang X M 2012 Acta Phys. Sin. 61 054204 (in Chinese) [张锐, 李平, 粟敬钦, 王建军, 李海, 耿远超, 梁樾, 赵润昌, 董军, 卢宗贵, 周丽丹, 刘兰琴, 林宏奂, 许党朋, 邓颖, 朱娜, 景峰, 隋展, 张小民 2012 物理学报 61 054204]

    [13]

    Liu L Q, Zhang Y, Geng Y C, Wang W Y, Zhu Q H, Jing F, Wei X F, Huang W Q 2014 Acta Phys. Sin. 63 164201 (in Chinese) [刘兰琴, 张颖, 耿远超, 王文义, 朱启华, 景峰, 魏晓峰, 黄晚晴 2014 物理学报 63 164201]

    [14]

    Li P, Wang W, Zhao R C, Geng Y C, Jia H T, Su J Q 2014 Acta Phys. Sin. 63 215202 (in Chinese) [李平, 王伟, 赵润昌, 耿远超, 贾怀庭, 粟敬钦 2014 物理学报 63 215202]

    [15]

    Garanin S G, Derkach V N, Shnyagin R A 2004 Quantum Electron. 34 427

    [16]

    Schmitt A J 1984 Appl. Phys. Lett. 44 399

    [17]

    Murakami M 1995 Appl. Phys. Lett. 66 1587

    [18]

    Seidel J J 2001 J. Stat. Plan. Infer. 95 307

    [19]

    Murakami M, Sarukura N, Azechi H, Temporal M, Schmitt A J 2010 Phys. Plasmas 17 082702

    [20]

    Xu T, Xu L, Wang A, Gu C, Wang S, Liu J, Wei A 2013 Phys. Plasmas 20 122702

    [21]

    Temporal M, Canaud B, Garbett W J, Ramis R 2015 Phys. Plasmas 22 102709

    [22]

    Kruer W L 2003 The Physics of Laser Plasma Interactions (Oxford: Westview Press) p45

    [23]

    Xu T 2014 Ph. D. Dissertation (Hefei: University of Science and Technology of China) (in Chinese) [徐腾 2014 博士学位论文 (合肥: 中国科学技术大学)]

    [24]

    Li L, Gu C, Xu L, Zhou S 2016 Phys. Plasmas 23 043103

  • [1]

    Lindl J 1995 Phys. Plasmas 2 3933

    [2]

    Miller G H, Moses E I, Wuest C R 2004 Opt. Eng. 43 2841

    [3]

    Fleurot N, Cavailler C, Bourgade J L 2005 Fusion Eng. Des. 74 147

    [4]

    Zheng W, Zhang X, Wei X, Jing F, Sui Z, Zheng K, Yuan X, Jiang X, Su J, Zhou H, Li M 2008 J. Phys. Conf. Ser. 112 032009

    [5]

    Bodner S E, Colombant D G, Gardner J H, Lehmberg R H, Obenschain S P, Phillips L, Schmitt A J, Sethian J D, McCrory R L, Seka W, Verdon C P 1998 Phys. Plasmas 5 1901

    [6]

    Hallo L, Olazabal-Loumé M, Ribeyre X, Dréan V, Schurtz G, Feugeas J L, Breil J, Nicolaï P, Maire P H 2008 Plasma Phys. Control. Fusion 51 014001

    [7]

    Boehly T R, Brown D L, Craxton R S, Keck R L, Knauer J P, Kelly J H, Kessler T J, Kumpan S A, Loucks S J, Letzring S A, Marshall F J 1997 Opt. Commun. 133 495

    [8]

    Bodner S E 1981 J. Fusion Energy 1 221

    [9]

    Skupsky S, Lee K 1983 J. Appl. Phys. 54 3662

    [10]

    Emery M H, Gardner J H, Boris J P 1982 Phys. Rev. Lett. 48 677

    [11]

    Gardner J H, Bodner S E 1981 Phys. Rev. Lett. 47 1137

    [12]

    Zhang R, Li P, Su J Q, Wang J J, Li H, Geng Y C, Liang Y, Zhao R C, Dong J, Lu Z G, Zhou L D, Liu L Q, Lin H H, Xu D P, Deng Y, Zhu N, Jing F, Sui Z, Zhang X M 2012 Acta Phys. Sin. 61 054204 (in Chinese) [张锐, 李平, 粟敬钦, 王建军, 李海, 耿远超, 梁樾, 赵润昌, 董军, 卢宗贵, 周丽丹, 刘兰琴, 林宏奂, 许党朋, 邓颖, 朱娜, 景峰, 隋展, 张小民 2012 物理学报 61 054204]

    [13]

    Liu L Q, Zhang Y, Geng Y C, Wang W Y, Zhu Q H, Jing F, Wei X F, Huang W Q 2014 Acta Phys. Sin. 63 164201 (in Chinese) [刘兰琴, 张颖, 耿远超, 王文义, 朱启华, 景峰, 魏晓峰, 黄晚晴 2014 物理学报 63 164201]

    [14]

    Li P, Wang W, Zhao R C, Geng Y C, Jia H T, Su J Q 2014 Acta Phys. Sin. 63 215202 (in Chinese) [李平, 王伟, 赵润昌, 耿远超, 贾怀庭, 粟敬钦 2014 物理学报 63 215202]

    [15]

    Garanin S G, Derkach V N, Shnyagin R A 2004 Quantum Electron. 34 427

    [16]

    Schmitt A J 1984 Appl. Phys. Lett. 44 399

    [17]

    Murakami M 1995 Appl. Phys. Lett. 66 1587

    [18]

    Seidel J J 2001 J. Stat. Plan. Infer. 95 307

    [19]

    Murakami M, Sarukura N, Azechi H, Temporal M, Schmitt A J 2010 Phys. Plasmas 17 082702

    [20]

    Xu T, Xu L, Wang A, Gu C, Wang S, Liu J, Wei A 2013 Phys. Plasmas 20 122702

    [21]

    Temporal M, Canaud B, Garbett W J, Ramis R 2015 Phys. Plasmas 22 102709

    [22]

    Kruer W L 2003 The Physics of Laser Plasma Interactions (Oxford: Westview Press) p45

    [23]

    Xu T 2014 Ph. D. Dissertation (Hefei: University of Science and Technology of China) (in Chinese) [徐腾 2014 博士学位论文 (合肥: 中国科学技术大学)]

    [24]

    Li L, Gu C, Xu L, Zhou S 2016 Phys. Plasmas 23 043103

  • [1] 田博宇, 钟哲强, 隋展, 张彬, 袁孝. 基于涡旋光束的超快速角向集束匀滑方案. 物理学报, 2019, 68(2): 024207. doi: 10.7498/aps.68.20181361
    [2] 杨钧兰, 钟哲强, 翁小凤, 张彬. 惯性约束聚变装置中靶面光场特性的统计表征方法. 物理学报, 2019, 68(8): 084207. doi: 10.7498/aps.68.20182091
    [3] 肖德龙, 戴自换, 孙顺凯, 丁宁, 张扬, 邬吉明, 尹丽, 束小建. Z箍缩动态黑腔驱动靶丸内爆动力学. 物理学报, 2018, 67(2): 025203. doi: 10.7498/aps.67.20171640
    [4] 钟哲强, 侯鹏程, 张彬. 基于光克尔效应的径向光束匀滑新方案. 物理学报, 2016, 65(9): 094207. doi: 10.7498/aps.65.094207
    [5] 赵英奎, 欧阳碧耀, 文武, 王敏. 惯性约束聚变中氘氚燃料整体点火与燃烧条件研究. 物理学报, 2015, 64(4): 045205. doi: 10.7498/aps.64.045205
    [6] 王峰, 彭晓世, 薛全喜, 徐涛, 魏惠月. 基于神光III原型的整形激光直接驱动准等熵压缩实验研究. 物理学报, 2015, 64(8): 085202. doi: 10.7498/aps.64.085202
    [7] 钟哲强, 胡小川, 李泽龙, 叶荣, 张彬. 用于直接驱动的快速变焦新方案. 物理学报, 2015, 64(5): 054209. doi: 10.7498/aps.64.054209
    [8] 邓学伟, 周维, 袁强, 代万俊, 胡东霞, 朱启华, 景峰. 甚多束激光直接驱动靶面辐照均匀性研究. 物理学报, 2015, 64(19): 195203. doi: 10.7498/aps.64.195203
    [9] 李泽龙, 钟哲强, 张彬. 基于互补型偏振控制板的多光束叠加特性研究. 物理学报, 2014, 63(9): 095204. doi: 10.7498/aps.63.095204
    [10] 宁成, 丰志兴, 薛创. Z箍缩驱动动态黑腔中的基本能量转移特征. 物理学报, 2014, 63(12): 125208. doi: 10.7498/aps.63.125208
    [11] 张占文, 漆小波, 李波. 惯性约束聚变点火靶候选靶丸特点及制备研究进展. 物理学报, 2012, 61(14): 145204. doi: 10.7498/aps.61.145204
    [12] 晏骥, 江少恩, 苏明, 巫顺超, 林稚伟. X射线相衬成像应用于惯性约束核聚变多层球壳靶丸检测. 物理学报, 2012, 61(6): 068703. doi: 10.7498/aps.61.068703
    [13] 占江徽, 姚欣, 高福华, 阳泽健, 张怡霄, 郭永康. 惯性约束聚变驱动器连续相位板前置时频率转换晶体内部光场研究. 物理学报, 2011, 60(1): 014205. doi: 10.7498/aps.60.014205
    [14] 程文雍, 张小民, 粟敬钦, 赵圣之, 董军, 李平, 周丽丹. 利用运动光束抑制高功率激光小尺度自聚焦. 物理学报, 2009, 58(10): 7012-7016. doi: 10.7498/aps.58.7012
    [15] 姚欣, 高福华, 张怡霄, 温圣林, 郭永康, 林祥棣. 激光惯性约束聚变驱动器终端光学系统中束匀滑器件前置的条件研究. 物理学报, 2009, 58(5): 3130-3134. doi: 10.7498/aps.58.3130
    [16] 姚欣, 高福华, 高博, 张怡霄, 黄利新, 郭永康, 林祥棣. 惯性约束聚变驱动器终端束匀滑器件前置时频率转换系统优化研究. 物理学报, 2009, 58(7): 4598-4604. doi: 10.7498/aps.58.4598
    [17] 姚 欣, 高福华, 李剑峰, 张怡霄, 温圣林, 郭永康. 光束取样光栅强激光近场调制及诱导损伤研究. 物理学报, 2008, 57(8): 4891-4897. doi: 10.7498/aps.57.4891
    [18] 成金秀, 郑志坚, 陈红素, 缪文勇, 陈 波, 王耀梅, 胡 昕. 1.06μm 激光直接驱动烧蚀靶内爆压缩特性. 物理学报, 2004, 53(10): 3419-3423. doi: 10.7498/aps.53.3419
    [19] 祁兰英, 陈家斌, 蒋小华, 刘慎业, 郑志坚, 张保汉, 丁永坤, 李朝光, 王大海, 朱森昌, 张家泰. “神光Ⅱ”首轮基频光驱动内爆实验超热电子诊断. 物理学报, 2002, 51(9): 2068-2073. doi: 10.7498/aps.51.2068
    [20] 杨洪琼, 杨建伦, 温树槐, 王根兴, 郭玉芝, 唐正元, 牟维兵, 马驰. 激光直接驱动内爆DT燃料面密度诊断. 物理学报, 2001, 50(12): 2408-2412. doi: 10.7498/aps.50.2408
计量
  • 文章访问数:  4757
  • PDF下载量:  131
  • 被引次数: 0
出版历程
  • 收稿日期:  2016-12-20
  • 修回日期:  2017-03-07
  • 刊出日期:  2017-05-05

/

返回文章
返回