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在“强光一号”装置进行的Z箍缩动态黑腔实验中, 初步系统研究了动态黑腔的内爆动力学特性及辐射特性的一般规律. 通过高空间分辨图像, 对丝阵与泡沫黑腔碰撞前后泡沫辐射场的变化, 泡沫对不稳定性发展的抑制开展了细致研究. 实验结果显示, 动态黑腔负载内爆的辐射功率波形呈现双峰结构, 首峰和主峰分别对应于碰撞和滞止过程. 8 mm负载的内爆速度高于12 mm负载, 但其他内爆动力学参数和辐射参数均无明显差异. 实验使用的泡沫黑腔能够很好地抑制不稳定性的发展, 但在泡沫内部未能实现对辐射的均匀控制, 滞止泡沫等离子体柱上仍能轻易区分辐射较强和辐射较弱的区域.The Z-pinch dynamic hohlraum (ZPDH), as implemented on qiangguang-1 facility at NINT, is composed of an annular tungsten plasma that implodes onto a coaxial foam convertor. The collision between tungsten Z pinch and foam convertor launches a strong shock. The shock generates a strong radiation pulse, referred as the first radiation power peak, then the radiation is trapped by the tungsten Z pinch. As pinch diameter decreases, the second radiation power pulse rises and acts as the main power peak. The radiation and dynamic characteristics do not show obvious difference between the 8 mm and 12 mm wire array configurations. Hence, it is important to notice that the foam reduces the influence of global instability generated by MRT instability on stagnated pinch, especially reduces the growth of m=0 and m=1 MHD instability.
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Keywords:
- ZPDH /
- foam hohlraum /
- implosion dynamics /
- radiation character
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[19] Sanford T W L, Mock R C, Seamen J F, Lopez M R, Watt R G, Idzorek G C, Peterson D L 2005 Phys. Plasmas 12 122701
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[22] Haines M G, Lebedev S V, Chittenden J P, Bland S N, Sherlock M, Ampleford D J, Bott S C, Hall G N, Jennings C, Rapley J, Le Pell P D, Coverdale C A, Jones B, Deeney C 2004 Proc. IAEA FEC 2004 OV/3-5Rb
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[24] Zhao T, Zou X B, Zhang R, Wang X X 2010 Chin. Phys. B 19 1674
[25] Matzen M K, Sweeney M A, Adams R G, Asay J R, Bailey J E, Bennett G R, Bliss D E, Bloomquist D D, Brunner T A, Campbell R B, Chandler G A, Coverdale C A, Cuneo M E, Davis J P, Deeney C, Desjarlais M P, Donovan G L, Garasi C J, Haill T A, Hall C A, Hanson D L, Hurst M J, Jones B, Knudson M D, Leeper R J, Lemke R W, Mazarakis M G, McDaniel D H, Mehlhorn T A, Nash T J, Olson C L, Porter J L, Rambo P K, Rosenthal S E, Rochau G A, Ruggles L E, Ruiz C L, Sanford T W L, Seamen J F, Sinars D B, Slutz S A, Smith I C, Struve K W, Stygar W A, Vesey R A, Weinbrecht E A, Wenger D F, Yu E P 2005 Phys. Plasmas 12 55503
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[1] Smirnov V P, 1991 Plasma Phys. Control. Fusion 33 1697
[2] Nash T J, Derzon M S, Chandler G A, Leeper R, Fehl D, Lash J, Ruiz C, Cooper G, Seaman J F, McGurn J, Lazier S, Torres J, Jobe D, Gilliland T, Hurst M, Mock R, Ryan P, Nielsen D, Armijo J, McKenney J, Hawn R, Hebron D 1999 Phys. Plasmas 6 2023
[3] Sanford T W L, Olson R E, Bowers R L, Chandler G A, Derzon M S, Hebron D E, Leeper R J, Mock R C, Nash T J, Peterson D L, Ruggles L E, Simpson W W, Struve K W, Vesey R A 2000 Phys. Rev. Lett. 83 5511
[4] Slutz S A, Bailey J E, Chandler G A, Bennett G R, Cooper G J, Lash J S, Lazier S, Lake P, Lemke R W, Mehlhorn T A, Nash T J, Nielson D S, McGurn J, Moore T C, Ruiz C L, Schroen D G, Torres J, Varnum W, Vesey R A 2003 Phys. Plasmas 10 1875
[5] Sanford T W L, Nash T J, Olson R E, Bliss D E, Lemke R W, Olson C L, Ruiz C L, Mock R C, Bailey J E, Chandler G A, Cuneo M E, Leeper R J, Matzen M K, Mehlhorn T A, Slutz S A, Stygar W A, Peterson D L, Chrien R E, Watt R E, Roderick N F, Cooper G W, Apruzese J P, Sarkisov G S, Chittenden J P, Haines M G 2004 Plasma Phys. Control. Fusion 46 B423
[6] Sanford T W L, R W Lemke T W L, Mock R C, Chandler G A, Leeper R J, Ruiz C L, Peterson D L, Chrien R E, Idzorek G C, Watt R G, Chittenden J P 2002 Phys. Plasmas 9 3573
[7] Ruiz C L, Cooper G W, Slutz S A, Bailey J E, Chandler G A, Nash T J, Mehlhorn T A, Leeper R J, Fehl D, Nelson A J, Franklin J, Ziegler L 2004 Phys. Rev. Lett. 93 015001
[8] Haines M G, Sanford T W L, Smirnov V P 2005 Plasma Phys. Control. Fusion 47 B1
[9] Nash T J, Sanford T W L, Mock R C 2007 Sandia National Laboratories technical report SAND 2007-0992
[10] Bailey J E, Chandler G A, Slutz S A, Golovkin I, Lake P W, MacFarlane P W, Mancini R C, Burris-Mog T J, Cooper G, Leeper R J, Mehlhorn T A, Moore T C, Nash T J, Nielsen D S, Ruiz C L, Schroen D G, Varnum W A 2004 Phys. Rev. Lett. 92 085002
[11] Mazarakis M G, Deeney C E, Douglas M R, Stygar W A, Sinars D B, Cuneo M E, Chittenden J, Chandler G A, Nash T J, Struve K W and McDaniel D H 2005 Plasma Devices and Operations 3 157
[12] Nash T J, Sanford T W L, Mock R C 2007 Sandia National Laboratories technical report SAND 2007 0992
[13] Xu R K, Li Z H, Yang J L, Ding N, Jiang S L, Zhang F Q, Wang Z, Xu Z P, Ning J M, Li L B, Zhou X W, Grabovsky E V, Oleynic G M, Alexandrov V V, Smirnov V P 2011 Acta. Phys. Sin. 60 045208 (in Chinese) [徐荣昆, 李正宏, 杨建伦, 丁宁, 周秀文, 蒋世伦, 章法强, 王真, 许泽平, 宁家敏, 李林波, Grabovsky E V, Oleynic G M, Alexandrov V V, Smirnov V P 2011 物理学报 60 045208]
[14] Yang J L, Li Z H, Xu R K, Xu Z P, Ye F, Chen F X, Chen D Y, Qin Y, Xue F B, Hu Q Y, Jiang S Q, Ning J M, Li L B, Zhou L, Zhang F Q, Chen J C, Meng S J, Feng J H 2012 Proc. Epsicpp 2012 p4.104
[15] Ding N, Wu J M, Dai Z H, Zhang Y, Yin L, Yao Y Z, Sun S K, Ning C, Shu X J 2010 Acta. Phys. Sin. 59 8707 (in Chinese) [丁宁, 邹吉明, 戴自换, 张扬, 尹丽, 姚彦忠, 孙顺凯, 宁成, 束小建 2010 物理学报 59 8707]
[16] Xu R K, Li Z H, Guo C, Yang J L, Li L B, Song F J, Ning J M, Xia G X, Xu Z P 2003 Acta. Phys. Sin. 52 1203 (in Chinese) [徐荣昆, 李正宏, 郭存, 杨建伦, 李林波, 宋凤军, 宁家敏, 夏广新, 许泽平 2003 物理学报 52 1203]
[17] Xia G X, Zhang F Q, Xu Z P, Xu R K, Chen J C, Ning J M 2010 Acta. Phys. Sin. 59 97 (in Chinese) [夏广新, 章法强, 许泽平, 徐荣昆, 陈进川, 宁家敏 2010 物理学报 59 97]
[18] Jiang S Q, Ye Fan, Yang J L, Xia G X, Zhang F Q, Li Z H, Xu R K, Xu Z P, Pan Y J 2012 Acta. Phys. Sin. 61 195205 (in Chinese) [蒋树庆, 叶繁, 杨建伦, 夏广新, 章法强, 李正宏, 徐荣昆, 许泽平, 潘英俊 2012 物理学报 61 195205]
[19] Sanford T W L, Mock R C, Seamen J F, Lopez M R, Watt R G, Idzorek G C, Peterson D L 2005 Phys. Plasmas 12 122701
[20] Sanford T W L, Nash T J, Mock R C, Apruzese J P, Peterson D L 2006 Phys. Plasmas 13 022701
[21] Lebedev S V, Chittenden J P, Beg F N, Bland S N, Ciardi A, Ampleford D, Hughes S, Haines M G, Frank A, Blackman E G, Gardiner T 2005 Plasma Phys. Controlled Fusion 47 A91
[22] Haines M G, Lebedev S V, Chittenden J P, Bland S N, Sherlock M, Ampleford D J, Bott S C, Hall G N, Jennings C, Rapley J, Le Pell P D, Coverdale C A, Jones B, Deeney C 2004 Proc. IAEA FEC 2004 OV/3-5Rb
[23] Lebedev S V, Beg F N, Bland S N, Chittenden J P, Dangor A E, Haines M G, Kwek K H, Pikuz S A, Shelkovenko T A 2001 Phys. Plasmas 8 3734
[24] Zhao T, Zou X B, Zhang R, Wang X X 2010 Chin. Phys. B 19 1674
[25] Matzen M K, Sweeney M A, Adams R G, Asay J R, Bailey J E, Bennett G R, Bliss D E, Bloomquist D D, Brunner T A, Campbell R B, Chandler G A, Coverdale C A, Cuneo M E, Davis J P, Deeney C, Desjarlais M P, Donovan G L, Garasi C J, Haill T A, Hall C A, Hanson D L, Hurst M J, Jones B, Knudson M D, Leeper R J, Lemke R W, Mazarakis M G, McDaniel D H, Mehlhorn T A, Nash T J, Olson C L, Porter J L, Rambo P K, Rosenthal S E, Rochau G A, Ruggles L E, Ruiz C L, Sanford T W L, Seamen J F, Sinars D B, Slutz S A, Smith I C, Struve K W, Stygar W A, Vesey R A, Weinbrecht E A, Wenger D F, Yu E P 2005 Phys. Plasmas 12 55503
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