多点光源相衬成像法应用于内爆背光照相实验

晏骥; 郑建华; 陈黎; 胡昕; 黄天晅; 江少恩

doi:10.7498/aps.62.125203

摘要

针对常规内爆背光照相中存在的光源均匀性差、靶丸图像烧蚀层与气体层界面不清晰、瞄准精度差等关键问题设计了新型的背光照相靶. 在神光II大型激光装置上采用阵列点光源结合相衬成像的方式获取了清晰的靶丸烧蚀层与气体层界面信息, 同时具备光源均匀性好, 成像视场大的优点; 采用诊断狭缝限光的方式大大提高了瞄准精度使得整体图像质量优于常规靶设计. 实验结果表明, 激光驱动等离子体产生的点光源结合相衬成像方法在精密物理诊断中具有重要的作用, 可以广泛应用于惯性约束聚变以及高能量密度物理研究.

关键词:

Abstract

Traditional implosion backlight imaging experiment has disadvantages of nonuniform X-ray source, low contrast ablator interface and high requirement for diagnostic device tuning precision. A novel design of multi-point X-ray source combined with phase contrast imaging developed and optimized based on experimental research performed on Shenguang-II facility is presented. The novel design can obtain high-quality experimental result with uniform X-ray source, clear interface between ablator and inner DD gas and large image view. At the same time, the new design using diagnostic silt instead of diagnostic hole improves tuning precision. The experimental result proposes that novel design of laser driven plasma point x-ray source combined with phase contrast imaging has advantage of area X-ray source combined with absorb imaging and can be widely used in inertial confinement fusion and high energy density physics.

Keywords:

作者及机构信息

1.
中国工程物理研究院激光聚变研究中心, 绵阳 621900

Authors and contacts

1.
Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

参考文献

[1]	Callahan D A, Meezan N B, Glenzer S H, MacKinnon A J, Benedetti L R, Bradley D K, Celeste J R, Celliers P M, Dixit S N, Doppner T, Dzentitis E G, Glenn S, Haan S W, Haynam C A, Hicks D G, Hinkel D E, Jones O S, Landen O L, London R A, MacPhee A G, Michel P A, Moody J D, Ralph J E, Robey H F, Rosen M D, Schneider M B, Strozzi D J, Suter L J, Town R P J, Widmann K, Williams E A, Edwards M J, MacGowan B J, Lindl J D, Atherton L J, Kyrala G A, Kline J L, Olson R E, Edgell D, Regan S P, Nikroo A, Wilkins H, Kilkenny J D, Moore A S 2012 Phys. Plasmas 19 056305
[2]	Hicks D G, Spears B K, Braun D G, Olson R E, Sorce C M, Celliers P M, Collins G W, Landen O L 2010 Phys. Plasmas 17 102703
[3]	Landen O L, Boehly T R, Bradley D K, Braun D G, Callahan D A, Celliers P M, Collins G W, Dewald E L, Divol L, Glenzer S H, Hamza A, Hicks D G, Hoffman N, Izumi N, Jones O S, Kirkwood R K, Kyrala G A, Michel P, Milovich J, Munro D H, Nikroo A, Olson R E, Robey H F, Spears B K, Thomas C A, Weber S V, Wilson D C, Marinak M M, Suter L J, Hammel B A, Meyerhofer D D, Atherton J, Edwards J, Haan S W, Lindl J D, MacGowan B J, Moses E I 2010 Phys. Plasmas 17 056301
[4]	Kirkwood R K, Milovich J, Bradley D K, Schmitt M, Goldman S R., Kalantar D H, Meeker D, Jones O S, Pollaine S M, Amendt P A, Dewald E, Edwards J, Landen O L, Nikroo A 2009 Phys. Plasmas 16 012702
[5]	Kuranz C C, Blue B E, Drake R P, Robey H F, Hansen J F, Knauer J P, Grosskopf M J, Krauland C, Marion D C 2006 Rev. Sci. Instrum 77 10E327
[6]	Yan J, Jiang S E, Lin Z W, Chen L, Yin Z J 2011 High Power Laser and Particle Beams 23 2653 (in Chinese) [晏骥, 江少恩, 林稚伟, 陈黎, 阴泽杰 2011 强激光与粒子束 23 2653]
[7]	Yan J, Zheng J H, Chen L, Lin Z W, Jiang S E 2012 Acta Phys. Sin. 61 148701 (in Chinese) [晏骥, 郑建华, 陈黎, 林稚伟, 江少恩 2012 61 148701]
[8]	Yan J, Jiang S E, Yin Z J 2010 High Power Laser and Particle Beams 22 2047 (in Chinese) [晏骥, 江少恩, 阴泽杰 2010 强激光与粒子束 22 2047]
[9]	Yan J, Jiang S E, Chen L, Lin Z W 2012 High Power Laser and Particle Beams 24 1892 (in Chinese) [晏骥, 江少恩, 陈黎, 林稚伟 2012 强激光与粒子束 24 1892]
[10]	Yan J, Jiang S E, Su M, Wu S C, Lin Z W 2012 Acta Phys. Sin. 61 068703 (in Chinese) [晏骥, 江少恩, 苏明, 巫顺超, 林稚伟 2012 61 068703]

施引文献

[1]	Callahan D A, Meezan N B, Glenzer S H, MacKinnon A J, Benedetti L R, Bradley D K, Celeste J R, Celliers P M, Dixit S N, Doppner T, Dzentitis E G, Glenn S, Haan S W, Haynam C A, Hicks D G, Hinkel D E, Jones O S, Landen O L, London R A, MacPhee A G, Michel P A, Moody J D, Ralph J E, Robey H F, Rosen M D, Schneider M B, Strozzi D J, Suter L J, Town R P J, Widmann K, Williams E A, Edwards M J, MacGowan B J, Lindl J D, Atherton L J, Kyrala G A, Kline J L, Olson R E, Edgell D, Regan S P, Nikroo A, Wilkins H, Kilkenny J D, Moore A S 2012 Phys. Plasmas 19 056305
[2]	Hicks D G, Spears B K, Braun D G, Olson R E, Sorce C M, Celliers P M, Collins G W, Landen O L 2010 Phys. Plasmas 17 102703
[3]	Landen O L, Boehly T R, Bradley D K, Braun D G, Callahan D A, Celliers P M, Collins G W, Dewald E L, Divol L, Glenzer S H, Hamza A, Hicks D G, Hoffman N, Izumi N, Jones O S, Kirkwood R K, Kyrala G A, Michel P, Milovich J, Munro D H, Nikroo A, Olson R E, Robey H F, Spears B K, Thomas C A, Weber S V, Wilson D C, Marinak M M, Suter L J, Hammel B A, Meyerhofer D D, Atherton J, Edwards J, Haan S W, Lindl J D, MacGowan B J, Moses E I 2010 Phys. Plasmas 17 056301
[4]	Kirkwood R K, Milovich J, Bradley D K, Schmitt M, Goldman S R., Kalantar D H, Meeker D, Jones O S, Pollaine S M, Amendt P A, Dewald E, Edwards J, Landen O L, Nikroo A 2009 Phys. Plasmas 16 012702
[5]	Kuranz C C, Blue B E, Drake R P, Robey H F, Hansen J F, Knauer J P, Grosskopf M J, Krauland C, Marion D C 2006 Rev. Sci. Instrum 77 10E327
[6]	Yan J, Jiang S E, Lin Z W, Chen L, Yin Z J 2011 High Power Laser and Particle Beams 23 2653 (in Chinese) [晏骥, 江少恩, 林稚伟, 陈黎, 阴泽杰 2011 强激光与粒子束 23 2653]
[7]	Yan J, Zheng J H, Chen L, Lin Z W, Jiang S E 2012 Acta Phys. Sin. 61 148701 (in Chinese) [晏骥, 郑建华, 陈黎, 林稚伟, 江少恩 2012 61 148701]
[8]	Yan J, Jiang S E, Yin Z J 2010 High Power Laser and Particle Beams 22 2047 (in Chinese) [晏骥, 江少恩, 阴泽杰 2010 强激光与粒子束 22 2047]
[9]	Yan J, Jiang S E, Chen L, Lin Z W 2012 High Power Laser and Particle Beams 24 1892 (in Chinese) [晏骥, 江少恩, 陈黎, 林稚伟 2012 强激光与粒子束 24 1892]
[10]	Yan J, Jiang S E, Su M, Wu S C, Lin Z W 2012 Acta Phys. Sin. 61 068703 (in Chinese) [晏骥, 江少恩, 苏明, 巫顺超, 林稚伟 2012 61 068703]

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