小收缩比内爆实验初步研究

蒲昱东; 康洞国; 黄天晅; 高耀明; 陈家斌; 唐琦; 宋仔峰; 彭晓世; 陈伯伦; 蒋炜; 余波; 晏骥; 江少恩; 刘慎业; 杨家敏; 丁永坤

doi:10.7498/aps.63.125211

摘要

在神光Ⅲ原型装置上，利用8路激光间接驱动充高气压DT靶丸，开展小收缩比内爆实验. 实验中测量得到中子产额、离子温度、聚变反应速率峰值时刻（bangtime）等关键物理量，以及它们随烧蚀层厚度变化的规律. 从定性和定量两个方面对实验结果进行了分析讨论，推测流体力学不稳定性和内爆不对称性是导致实验结果与一维辐射流体计算结果不一致的原因.

关键词:

惯性约束聚变 /
内爆

Indirectly driven low-convergence-ratio implosion experiments are conducted on SGIII prototype laser facility. Neutron yield, ion temperature and bangtime, and also their variation laws with the increase of ablator thickness are measured. These results are analyzed quantitatively and qualitatively, and the difference between the measurements and the calculations is discussed. The degradation of neutron yield is attributed to the hydrodynamic instabilities and implosion asymmetries.

Keywords:

inertial confinement fusion /
implosions

作者及机构信息

1.
激光聚变研究中心, 绵阳 621900;

2.
北京应用物理与计算数学研究所, 北京 100088

Authors and contacts

1.
Research Center of Laser Fusion, Mianyang 621900, China;

2.
Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

参考文献

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[3]	Haan S W, Lindl J D, Callanhan D A, et al. 2011 Phys. Plasmas 18 051001
[4]	Landen O L, Edwards J, Haan S W, et al. 2011 Phys. Plasmas 18 051002
[5]	Edward M J, Lindl J D, Spears B K, et al. 2011 Phys. Plasmas 18 051003
[6]	Hauer A A, Suter L, Delamater N, et al. 1995 Phys. Plasmas 2 2488
[7]	Boehly T R, Delettrez J A, Knauer J P, et al. 2001 Phys. Rev. Lett. 87 145003
[8]	Jiang S E, Miao W Y, Kuang L Y 2011 Acta Phys. Sin. 60 055206 (in Chinese) [江少恩, 缪文勇, 况龙钰 2011 物理学报 60 055206]
[9]	Zhan X Y, Chen J B, Deng C B 2010 Nuclear Eelectronics & Detection Technology 30 1120 (in Chinese) [詹夏宇, 陈家斌, 邓才波 2010 核电子学与探测技术 30 1120]
[10]	Feng J, Wang D H, Yang C B 2001 High Power Laser and Particle Beams 13 599 (in Chinese) [冯杰, 王大海, 杨存榜 2001 强激光与粒子束 13 599]
[11]	Peng X S, Wang F, Tang D R 2011 Acta Optica Sinica 38 0112006 (in Chinese) [彭晓世, 王峰, 唐道润 2011 光学学报 38 0112006]
[12]	Tang Q, Chen J B, Deng C B 2011 High Power Laser and Particle Beams 23 1533 (in Chinese) [唐琦, 陈家斌, 邓才波 2011 强激光与粒子束 23 1533]
[13]	Chen J B, Zheng Z J, Peng H S 2001 Rev. Sci. Instrum. 72 3534
[14]	Sun K X, Jiang S E, Cui Y L 2004 Nuclear Electronics & Dectection Technology 24 233 (in Chinese) [孙可煦, 江少恩, 崔延莉 2004 核电子学与探测技术 24 233]
[15]	Betti R, Umansky M, Lobatchev V 2001 Phys. Plasmas 8 5257
[16]	Feng T, Lai D, Xu Y 1999 Chin. J. Comput. Phys. 16 199
[17]	Serduke F J D, Minguez E, Davidson S J 2000 J. Quant. Spectrosc. Radiat. Transf. 65 527
[18]	Wang G Y, Chang T Q, Duan Q S 2003 Chin. J. Comput. Phys. 20 471 (in Chinese) [王光裕, 常铁强, 段庆生 2003 计算物理 20 471]
[19]	Kang D G, Gao Y M, Huang T X 2012 High Power Laser and Particle Beams 24 2109 (in Chinese) [康洞国, 高耀明, 黄天暄 2012 强激光与粒子束 24 2109]
[20]	Rygg J R, Frenje J A, Li C K, et al. 2008 Phys. Plasmas 15 034505
[21]	Dittrich T R, Hammel B A, Keane C J, et al. 1994 Phys. Rev. Lett. 73 2324

施引文献

[1]	Lindl J, Amendt P, Berger R L, et al. 1995 Phys. Plasmas 2 3933
[2]	Lindl J, Amendt P, Berger R L, et al. 2004 Phys. Plasmas 11 338
[3]	Haan S W, Lindl J D, Callanhan D A, et al. 2011 Phys. Plasmas 18 051001
[4]	Landen O L, Edwards J, Haan S W, et al. 2011 Phys. Plasmas 18 051002
[5]	Edward M J, Lindl J D, Spears B K, et al. 2011 Phys. Plasmas 18 051003
[6]	Hauer A A, Suter L, Delamater N, et al. 1995 Phys. Plasmas 2 2488
[7]	Boehly T R, Delettrez J A, Knauer J P, et al. 2001 Phys. Rev. Lett. 87 145003
[8]	Jiang S E, Miao W Y, Kuang L Y 2011 Acta Phys. Sin. 60 055206 (in Chinese) [江少恩, 缪文勇, 况龙钰 2011 物理学报 60 055206]
[9]	Zhan X Y, Chen J B, Deng C B 2010 Nuclear Eelectronics & Detection Technology 30 1120 (in Chinese) [詹夏宇, 陈家斌, 邓才波 2010 核电子学与探测技术 30 1120]
[10]	Feng J, Wang D H, Yang C B 2001 High Power Laser and Particle Beams 13 599 (in Chinese) [冯杰, 王大海, 杨存榜 2001 强激光与粒子束 13 599]
[11]	Peng X S, Wang F, Tang D R 2011 Acta Optica Sinica 38 0112006 (in Chinese) [彭晓世, 王峰, 唐道润 2011 光学学报 38 0112006]
[12]	Tang Q, Chen J B, Deng C B 2011 High Power Laser and Particle Beams 23 1533 (in Chinese) [唐琦, 陈家斌, 邓才波 2011 强激光与粒子束 23 1533]
[13]	Chen J B, Zheng Z J, Peng H S 2001 Rev. Sci. Instrum. 72 3534
[14]	Sun K X, Jiang S E, Cui Y L 2004 Nuclear Electronics & Dectection Technology 24 233 (in Chinese) [孙可煦, 江少恩, 崔延莉 2004 核电子学与探测技术 24 233]
[15]	Betti R, Umansky M, Lobatchev V 2001 Phys. Plasmas 8 5257
[16]	Feng T, Lai D, Xu Y 1999 Chin. J. Comput. Phys. 16 199
[17]	Serduke F J D, Minguez E, Davidson S J 2000 J. Quant. Spectrosc. Radiat. Transf. 65 527
[18]	Wang G Y, Chang T Q, Duan Q S 2003 Chin. J. Comput. Phys. 20 471 (in Chinese) [王光裕, 常铁强, 段庆生 2003 计算物理 20 471]
[19]	Kang D G, Gao Y M, Huang T X 2012 High Power Laser and Particle Beams 24 2109 (in Chinese) [康洞国, 高耀明, 黄天暄 2012 强激光与粒子束 24 2109]
[20]	Rygg J R, Frenje J A, Li C K, et al. 2008 Phys. Plasmas 15 034505
[21]	Dittrich T R, Hammel B A, Keane C J, et al. 1994 Phys. Rev. Lett. 73 2324

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