Density diagnosis based on ps-duration-pulse X-ray backlighting for fast ignition compression

Bi Bi; Zhou Weimin; Shan Lianqiang; Wei Lai; Liu Dongxiao; Zhang Feng; Tian Chao; Deng Zhigang; Yuan zongqiang; Wang Weiwu; Lu Feng; Wu Junfeng; Cai Hongbo; Ren Guoli; Wu Fengjuan; Li jin; Chen Tao; Yang Yimeng; Zhang Faqiang; Yang Lei; Cao Leifeng; Gu Yuqiu

doi:10.11884/HPLPB202032.200050

Volume 32 Issue 4

Mar. 2020

Turn off MathJax

Article Contents

Article Navigation > High Power Laser and Particle Beams > 2020 > 32(4): 042001

Bi Bi, Zhou Weimin, Shan Lianqiang, et al. Density diagnosis based on ps-duration-pulse X-ray backlighting for fast ignition compression[J]. High Power Laser and Particle Beams, 2020, 32: 042001. doi: 10.11884/HPLPB202032.200050

Citation:

Bi Bi, Zhou Weimin, Shan Lianqiang, et al. Density diagnosis based on ps-duration-pulse X-ray backlighting for fast ignition compression[J]. High Power Laser and Particle Beams, 2020, 32: 042001. doi: 10.11884/HPLPB202032.200050

Citation:

PDF( 1145 KB)

Density diagnosis based on ps-duration-pulse X-ray backlighting for fast ignition compression

doi: 10.11884/HPLPB202032.200050

1.
Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
2.
Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
3.
Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China

Received Date: 2020-01-19
Rev Recd Date: 2020-03-11
Publish Date: 2020-03-06

Abstract

Abstract

To provide significant parameters for fast ignition coupling efficiency and density diagnosis for higher compression, a ps-duration X-ray backlighter has been produced with ps-duration laser on Shenguang-Ⅱ updated facility. The radiation properties such as backlighting image resolution and the photons arriving at the image plate have been successfully measured. Based on the conformed conditions, density diagnosis of an indirectly-driven fast ignition target using ps-duration backlighting has been carried out. The obtained short-pulse backlighting radiography shows that the imploded shell shape agrees well with that of simulation and the areal density exceeds 50 mg/cm². The short-pulse backlighting radiography also shows the hydrodynamic instability which might be caused by the asymmetric compression. Further investigations and attempts to improve implosion performance to a higher density are in progress.
- fast ignition,
- pre-compression,
- short-pulse backlighting,
- density diagnostics

FullText(HTML)

References(15)

References

[1]	Tabak M, Hammer J, Glinsky M E, et al. Ignition and high gain with ultrapowerful lasers[J]. Phys Plasmas, 1994, 1(5): 1626-1634. doi: 10.1063/1.870664
[2]	Kodama R, Norreys P A, Mima K, et al. Fast heating of ultrahigh-density plasma as a step towards laser fusion ignition[J]. Nature, 2001, 412(6849): 798-802. doi: 10.1038/35090525
[3]	谷渝秋, 张锋, 单连强, 等. 神光II升级装置锥壳靶间接驱动快点火集成实验[J]. 强激光与粒子束, 2015, 27:110101. (Gu Yuqiu, Zhang Feng, Shan Lianqiang, et al. Initial indirect cone-in-shell fast ignition integrated experiment on Shenguang II-updated facility[J]. High Power Laser and Particle Beams, 2015, 27: 110101 doi: 10.11884/HPLPB201527.110101
[4]	Jarrott L C, Wei M S, McGuffey C, et al. Visualizing fast electron energy transport into laser-compressed high density fast ignition targets[J]. Nature Physics, 2016, 12: 499-504. doi: 10.1038/nphys3614
[5]	Theobald W, Solodov A A, Stoeckl C, et al. Initial cone-in-shell fast ignition experiments on OMEGA[J]. Phys Plasmas, 2011, 18: 056305. doi: 10.1063/1.3566082
[6]	Stephens R B, Hatchett S P, Turner R E, et al. Implosion of indirectly driven reentrant-cone shell target[J]. Phys Rev Lett, 2003, 91(18): 185001. doi: 10.1103/PhysRevLett.91.185001
[7]	Tanaka K A, Kodama R, Mima K, et al. Basic and integrated studies for fast ignition[J]. Phys Plasmas, 2003, 10(5): 1925-1930. doi: 10.1063/1.1567722
[8]	Stephens R B, Hatchett S P, Tabak M, et al. Implosion hydrodynamics of fast ignition targets[J]. Phys Plasmas, 2005, 12(5): 056312. doi: 10.1063/1.1896952
[9]	Betti R, Zhou C. High-density and high-ρR fuel assembly for fast-ignition inertial confinement fusion[J]. Phys Plasmas, 2005, 12(11): 110702. doi: 10.1063/1.2127932
[10]	Zhou C D, Theobald W, Betti R, et al. High-ρR implosions for fast-ignition fuel assembly[J]. Phys Rev Lett, 2007, 98(2): 025004. doi: 10.1103/PhysRevLett.98.025004
[11]	周维民, 单连强, 吴俊峰, 等. 间接驱动快点火锥壳靶锥体材料燃料混合问题研究[J]. 强激光与粒子束, 2015, 27:032017. (Zhou Weimin, Shan Lianqiang, Wu Junfeng, et al. Material mixing of cone-in-shell targets for indirect-drive fast ignition[J]. High Power Laser and Particle Beams, 2015, 27: 032017 doi: 10.11884/HPLPB201527.032017
[12]	He X T, Cai H B, Wu S Z, et al. Physical studies of fast ignition in China[J]. Plasma Physics and Controlled Fusion, 2015, 57: 064003. doi: 10.1088/0741-3335/57/6/064003
[13]	毕碧, 单连强, 周维民, 等. 快点火锥壳靶内爆自发光图像数据处理[J]. 强激光与粒子束, 2014, 26:092002. (Bi Bi, Shan Lianqiang, Zhou Weimin, et al. Implosion emission image processing for cone-shell target of fast ignition[J]. High Power Laser and Particle Beams, 2014, 26: 092002 doi: 10.11884/HPLPB201426.092002
[14]	Theobald W, Solodov A A, Stoeckl C, et al. Time-resolved compression of a capsule with a cone to high density for fast-ignition laser fusion[J]. Nature Communications, 2014, 5: 5785. doi: 10.1038/ncomms6785
[15]	Yi S Z, Zhang Z, Huang Q S, et al. Eight-channel Kirkpatrick-Baez microscope for multiframe X-ray imaging diagnostics in laser plasma experiments[J]. Review of Scientific Instruments, 2016, 87: 103501. doi: 10.1063/1.4963702