Matter and Radiation at Extremes, 2017, 2 (1): 16, Published Online: Jan. 17, 2018   

Aluminum X-ray mass-ablation rate measurements

Author Affiliations
1 Los Alamos National Laboratory, Los Alamos, NM 87545, USA
2 Lockheed-Martin, Syracuse, NY 13221, USA
Abstract
Measurements of the mass ablation rate of aluminum (Al) have been completed at the Omega Laser Facility. These measurements show that the mass-ablation rate of Al is higher than plastic (CH), comparable to high density carbon (HDC), and lower than beryllium. The mass-ablation rate is consistent with predictions using a 1D Lagrangian code, Helios. The results suggest Al capsules have a reasonable ablation pressure even with a higher albedo than beryllium or carbon ablators and further investigation into the viability of Al capsules for ignition should be pursued.
References

[1] J. Lindl, Development of the indirect-drive approach to inertial confinement fusion and the target physics basis for ignition and gain, Phys. Plasmas 2 (1995) 3933-4024.

[2] P. Amendt, Personal Communication (2014).

[3] R.E. Olson, G.A. Rochau, O.L. Landen, R.J. Leeper, X-ray ablation rates in inertial confinement fusion capsule materials, Phys. Plasmas 18 (2011) 032706.

[4] T.R.Boehly,R.S.Craxton,T.H.Hinterman, J.H.Kelly,T.J.Kessler, et al.,The upgrade to the Omega laser system, Rev. Sci. Instrum. 66 (1995) 508-510.

[5] J.M. Soures, R.L. McCrory, C.P. Verdon, A. Babushkin, R.E. Bahr, et al., Direct-drive laser-fusion experiments with the OMEGA, 60- beam, >40 kJ, ultraviolet laser system, Phys. Plasmas 3 (1996) 2108-2112.

[6] H.N. Kornblum, R.L. Kauffman, J.A. Smith, Measurement of 0.1e3- keV X rays from laser plasmas, Rev. Sci. Instrum. 57 (1986) 2179-2181.

[7] C. Sorce, J. Schein, F. Weber, K. Widmann, K. Campbell, et al., Soft Xray power diagnostic improvements at the Omega Laser Facility, Rev. Sci. Instrum. 77 (2006) 10E518.

[8] H.F. Finn, UNSPEC Reference Manual Version 10/29/82, 1982.

[9] R.L. Kauffman, H.N. Kornblum, D.W. Phillion, C.B. Darrow, Drive characterization of indirect drive targets on the Nova laser (invited), Rev. Sci. Instrum. 66 (1995) 678-682.

[10] A. Seifte, G.A. Kyrala, Different methods of reconstructing spectra from filtered X-ray diode measurements, Rev. Sci. Instrum. 79 (2008) 10F323.

[11] D.L. Fehl, F. Biggs, Verification of unfold error estimates in the unfold operator code, Rev. Sci. Instrum. 68 (1997) 890-893.

[12] M.J. May, K. Widmann, C. Sorce, H.S. Park, M. Schneider, et al., Uncertainty analysis technique for OMEGA Dante measurements, Rev. Sci. Instrum. 81 (2010) 10E505.

[13] J. Li, X.B. Huang, S.Q. Zhang, L.B. Yang, W.P. Xie, et al., Investigation of spectra unfolded for a filtered X-ray diode array with improved smoothness, Rev. Sci. Instrum. 80 (2009) 063106.

[14] R.E. Marrs, K. Widmann, G.V. Brown, R.F. Heeter, S.A. Maclaren, et al., Use of a priori spectral information in the measurement of X-ray flux with filtered diode arrays, Rev. Sci. Instrum. 86 (2015) 103511.

[15] N.E. Lanier, C. Hamilton, J.M. Taccetti, A monochromatic X-ray imaging system for characterizing low-density foams, Rev. Sci. Instrum. 83 (2012) 10E521.

[16] J.J. Macfarlane, I.E. Golovkin, P.R. Woodruff, HELIOS-CR A 1-D radiation-magnetohydrodynamics code with inline atomic kinetics modeling, J. Quant Spectrosc. Radiat. Transf. 99 (2006) 381-397.

J.L. Kline, J.D. Hager. Aluminum X-ray mass-ablation rate measurements[J]. Matter and Radiation at Extremes, 2017, 2(1): 16.

本文已被 1 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!