摘要
We have investigated the flux symmetry on the capsule in a six-cylinder-port hohlraum for improving the design of the hohlraum. The influence factors of drive symmetry on the capsule in the hohlraum are studied, including laser power,laser beams arrangement, hohlraum geometric parameters, plasma condition, capsule convergence, etc. The x-ray radiation flux distribution on the capsule is obtained based on the three-dimensional view factor model. In the six-cylinder-port hohlraum, the main drive asymmetry is the C40 mode asymmetry. When the C40 mode asymmetry approaches zero, the drive symmetry on the capsule is optimal. Our results demonstrate that in order to have a high flux symmetry on the capsule in the laser main-pulse stage, more negative initial C40 modes are needed, which can be realized by adjusting the hohlraum geometry parameters. The hohlraum with column length L_H = 4.81 mm has an optimal symmetry in the laser main-pulse stage.
We have investigated the flux symmetry on the capsule in a six-cylinder-port hohlraum for improving the design of the hohlraum. The influence factors of drive symmetry on the capsule in the hohlraum are studied, including laser power,laser beams arrangement, hohlraum geometric parameters, plasma condition, capsule convergence, etc. The x-ray radiation flux distribution on the capsule is obtained based on the three-dimensional view factor model. In the six-cylinder-port hohlraum, the main drive asymmetry is the C40 mode asymmetry. When the C40 mode asymmetry approaches zero, the drive symmetry on the capsule is optimal. Our results demonstrate that in order to have a high flux symmetry on the capsule in the laser main-pulse stage, more negative initial C40 modes are needed, which can be realized by adjusting the hohlraum geometry parameters. The hohlraum with column length L_H = 4.81 mm has an optimal symmetry in the laser main-pulse stage.
引文
[1] Lindl J D, Amendt P, Berger R L, Glendinning S G, Glenzer S H, Haan S W, Kauffman R L, Landen O L and Suter L J 2004 Phys. Plasmas 23933
[2] Moody J D, Callahan D A, Hinkel D E, et al. 2014 Phys. Plasmas 21056317
[3] Lan K, Liu J, Lai D X, Zheng W D and He X T 2014 Phys. Plasmas 21010704
[4] Lan K, He X T, Liu J, Zheng W D and Lai D X 2014 Phys. Plasmas 21052704
[5] Lan K and Zheng W D 2014 Phys. Plasmas 21 090704
[6] Li X, Wu C S, Dai Z S, Zheng W D, Gu J F, Gu P J, Zou S Y, Liu J and Zhu S P 2016 Chin. Phys. B 25 085202
[7] Li X, Wu C S, Dai Z S, Zheng W D, Zhao Y Q, Zhang H S, Gu J F, Ge F G, Gu P J and Zou S Y 2016 arXiv:1608.02167[plasm-ph]
[8] Lindl J D 1995 Phys. Plasmas 2 3933
[9] Lindl J D, Amendt P, Berger R L, Glendinning S G, Glenzer S H, Haan S W, Kauffman R L, Landen O L and Suter L J 2004 Phys. Plasmas 11339
[10] Hauer A A, Suter L, Delamater N, et al. 1995 Phys. Plasmas 2 2488
[11] Duan H, Wu C S, Pei W B and Zou S Y 2015 Phys. Plasmas 22 092704
[12] Huo W Y, Liu J, Zhao Y Q, Zheng W D and Lan K 2014 Phys. Plasmas21 114503
[13] Duan H, Wu C S, Pei W B and Zou S Y 2016 Phys. Plasmas 23 052703
[14] Haan S W, Lindl J D, Callanhan D A, et al. 2011 Phys. Plasmas 18051001
[15] Michel P, Divol L, Williams E A, Weber S, Thomas C A, Callahan D A, Haan S W, Salmonson J D, Dixit S, Hinkel D E, Edwards M J, MacGowan B J, Lindl J D, Glenzer S H and Suter L J 2009 Phys. Rev. Lett.102 025004
[16] Glenzer S H, MacGowan B J, Michel P, et al. 2010 Science 327 1228
[17] Michel P, Divol L, Town R P J, et al. 2011 Phys. Rev. E 83 046409
[18] Moody J D, Robey H F, Celliers P M, Munro D H, Barker D A, Baker K L, Doppner T, Hash N L, Hopkins L B and Lafortune K 2014 Phys.Plasmas 21 092702
[19] Kuang L Y, Li H, Jing L F, Lin Z W, Zhang L, Li L L, Ding Y K, Jiang S E, Liu J and Zheng J 2016 Scientific Reports 6 34636
[20] Cohen D H, Landen O L and MacFarlane J J 2005 Phys. Plasmas 12122703
[21] Atzeni S and Meyer-ter-Vehn J 2004 The Physics of Inertial Fusion(Oxford:Oxford Science Press)