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Plasma-driven Z-pinch X-ray loading and momentum coupling in meteorite and planetary materials

Published online by Cambridge University Press:  29 August 2012

JOHN L. REMO ,
MICHAEL D. FURNISH  and
R. JEFFERY LAWRENCE
JOHN L. REMO
Affiliation:
Departments of Astronomy and Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, USA, and Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA
MICHAEL D. FURNISH
Affiliation:
Sandia National Laboratories, P.O. Box 5800, Albuquerque NM 87185-1195, USA ([email protected])
R. JEFFERY LAWRENCE
Affiliation:
Sandia National Laboratories, P.O. Box 5800, Albuquerque NM 87185-1195, USA ([email protected])
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Abstract

X-ray momentum coupling coefficients, CM, were determined by measuring stress waveforms in planetary materials subjected to impulsive radiation loading from the Sandia National Laboratories Z-machine. Velocity interferometry (VISAR) diagnostics provided equation-of-state data. Targets were iron and stone meteorites, magnesium-rich olivine (dunite) solid and powder (~5–300 μm), and Si, Al, and Fe calibration targets. Samples were ~1-mm thick and, except for Si, backed by LiF single-crystal windows. X-ray spectra combined thermal radiation (blackbody 170–237 eV) and line emissions from pinch materials (Cu, Ni, Al, or stainless steel). Target fluences of 0.4–1.7 kJ/cm2 at intensities of 43–260GW/cm2 produced plasma pressures of 2.6–12.4 GPa. The short (~5 ns) drive pulses gave rise to attenuating stress waves in the samples. The attenuating wave impulse is constant, allowing accurate CM measurements from rear-surface motion. CM was 1.9 − 3.1 × 10−5 s/m for stony meteorites, 2.7 and 0.5 × 10−5 s/m for solid and powdered dunite, 0.8 − 1.4 × 10−5 s/m for iron meteorites, and 0.3, 1.8, and 2.7 × 10−5 s/m respectively for Si, Fe, and Al calibration targets. Results are consistent with geometric scaling from recent laser hohlraum measurements. CTH hydrocode modeling of X-ray coupling to porous silica corroborated experimental measurements and supported extrapolations to other materials. CTH-modeled CM for porous materials was low and consistent with experimental results. Analytic modeling (BBAY) of X-ray radiation-induced momentum coupling to selected materials was also performed, often producing higher CM values than experimental results. Reasons for the higher values include neglect of solid ejecta mechanisms, turbulent mixing of heterogeneous phases, variances in heats of melt/vaporization, sample inhomogeneities, wave interactions at the sample/window boundary, and finite sample/window sizes. The measurements validate application of CM to (inhomogeneous) planetary materials from high-intensity soft X-ray radiation.

Type
Papers
Information
Journal of Plasma Physics , Volume 79 , Issue 2 , April 2013 , pp. 121 - 141
Copyright
Copyright © Cambridge University Press 2012

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References

Atzeni, S. and Meyer-ter-Vehn, J. 2004 The Physics of Inertial Fusion. Oxford, UK: Clarendon Press.CrossRefGoogle Scholar
Dolan, D. H. 2006 Foundations of VISAR Analysis. Report SAND2006-1950, Sandia National Laboratories, Albuquerque, NM, 54 pp.CrossRefGoogle Scholar
Furnish, M. D., Boslough, M. B., Gray, G. T. III and Remo, J. L. 1995 Dynamic properties measurement for asteroids, comets, and meteorite material applicable to impact modeling and mitigation calculations. Int. J. Impact Eng. 17, 341–352.CrossRefGoogle Scholar
Furnish, M. D., Gray, G. T. III and Remo, J. L. 1994 Dynamical behavior of octahedrite from the Henbury meteorite. In: High Pressure Science and Technology (eds. Schmidt, S. C., Shaner, J. W., Samara, G. A. and Ross, M.). New York: AIP Press, pp. 819–822.Google Scholar
Hall, C. A., Asay, J. R., Knudson, M. D., Hayes, D. B., Lemke, R. L., Davis, J.-P. and Deeney, C. 2002 Recent advances in quasi-isentropic compression experiments (ICE) on the Sandia Z accelerator. In: Shock Compression of Condensed Matter – 2001 (eds. Furnish, M. D., Thadhani, N. N. and Horie, Y.). New York: AIP Press, pp. 1163–1168.Google Scholar
Hall, C. A., Asay, J. R., Knudson, M. D., Stygar, W. A., Speilman, R. B., Pointon, T. D., Reisman, D. R., Toor, A. and Cauble, R. C. 2001 Experimental configuration for isentropic compression of solids using pulsed magnetic loading. Rev. Sci. Instr. 72, 3587–3595.CrossRefGoogle Scholar
Hammerling, P. and Remo, J. L. 1995 NEO interaction with nuclear radiation. Acta Astronaut. 36, 337–346.CrossRefGoogle Scholar
Hertel, E. S. Jr., Bell, R. L., Elrick, M. G., Farnsworth, A. V., Kerley, G. I., McGlaun, J. M., Petney, S. V., Silling, S. A., Taylor, P. A. and Yarrington, L. 1993 CTH: a software family for multi-dimensional shock physics analysis. In: Proceedings of the 19th International Symposium on Shock Waves, Marseilles, France, pp. 377–382.Google Scholar
Hicks, D. G., Spears, B. K., Braun, D. G., Olson, R. E., Sorce, C. M., Celliers, P. M., Collins, G. W. and Landen, O. L. 2010 Convergent ablator performance measurements. Phys. Plasmas 17, 102703.CrossRefGoogle Scholar
Lawrence, R. J. 1992 The Equivalence of simple models for radiation-induced impulse. In: Shock Compression of Condensed Matter – 1991 (eds. Schmidt, S. C., Dick, R. J., Tasker, D. G. and Forbes, J. W.). Amsterdam, Netherlands: Elsevier Science, pp. 757–788.Google Scholar
Lawrence, R. J., Furnish, M. D. and Remo, J. L. 2012 Analytic models for pulsed x-ray impulsive coupling. In: Shock Compression of Condensed Matter – Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter 2011 (eds. Elert, M. L., Buttler, W. T., Borg, J. P., Jordan, J. L. and Vogler, T. J.), AIP Conference Proceedings, vol. 1426. New York: AIP Press, pp. 883–886.Google Scholar
Lindl, J. 1995 Development of the indirect-drive approach to inertial confinement fusion and the target physics basis for ignition and gain. Phys. Plasmas 2, 3933.CrossRefGoogle Scholar
Lowen, R., Schaibly, J. and Stephens, T. 1993 X-ray Radiation Transport Program (User's Handbook). San Diego, CA: Horizons Technology (DNA-EH92-012-G-V1 (HTI-SDR-92–051), Defense Nuclear Agency, Alexandria, VA).Google Scholar
McQueen, R. G., Marsh, S. P., Taylor, J. W., Fritz, J. N. and Carter, W. J. 1970 The equation of state of solids from shock wave studies. In: High-Velocity Impact Phenomena (ed. Kinslow, R.). Middlesex, MA: Academic Press, pp. 293–417.CrossRefGoogle Scholar
Meyer, M. A. 1994 Dynamic Behavior of Materials. New York: Wiley.CrossRefGoogle Scholar
Newlander, C. D., Place, J. R., Scammon, R. J. and Copus, E. R. 1978 Nuclear Hardness Evaluation Procedures (NHEP) Program, Phase 1: Analytic Technique Survey. Report no. AFWL-TR-78-18, Air Force Weapons Laboratory, Kirtland AFB, NM.Google Scholar
Remo, J. L. 1999 High-power-pulsed 1054-nm laser induced shock pressure and momentum, and energy coupling to iron-nickel and stony meteorites. Laser Part. Beams 17, 25–44.CrossRefGoogle Scholar
Remo, J. L. and Adams, R. G. 2008 High-energy density laser interactions with planetary and astrophysical materials: methodology and data. Proc. SPIE Int. Soc. Opt. Eng. 7005, 70052M-1-11.Google Scholar
Remo, J. L. and Furnish, M. D. 2002 High intensity x-ray coupling to meteorite targets. In: Shock Compression of Condensed Matter – 2001 (eds. Furnish, M. D., Thadhani, N. N. and Horie, Y.) New York: AIP Press, pp. 1163–1168.Google Scholar
Remo, J. L. and Furnish, M. D. 2008 Analysis of Z-pinch shock wave experiments on meteorites and planetary materials. Int. J. Impact Eng. 35, 1516–1521.CrossRefGoogle Scholar
Remo, J. L., Furnish, M. D. and Lawrence, R. J. 2012 Soft x-ray shock loading and momentum coupling in meteorite and planetary materials. In: The Proceedings of the 17th Biennial International Conference of the APS Topical Group on Shock Compression of Condensed Matter 2011 (ed. Elert, M. L., Buttler, W. T., Borg, J. P., Jordan, J. L. and Vogler, T. J.). New York: AIP Press, pp. 883–886.Google Scholar
Remo, J. L., Petaev, M. I. and Jacobsen, S. B. 2008 Experimental simulation of high P-T planetary processes: physics of laser-induced shocks in solid and powdered targets. Lunar Planet. Sci. 39, 1420.Google Scholar
Shafer, B. P., Garcia, M. D., Managan, R. A., Remo, J. L., Rosenkilde, C. E., Scammon, R. J., Snell, C. M. and Stellingwerf, R. F. 1994 The coupling of energy to asteroids and comets. In: Hazards Due to Comets and Asteroids (ed. Gehrels, T.) Tucson AZ: University of Arizona Press, pp. 955–1012.Google Scholar
Shafer, B. P., Garcia, M. D., Managan, R. A., Remo, J. L., Rosenkilde, C. E., Scammon, R. J., Snell, C. M. and Stellingwerf, R. F. 1997 Momentum coupling to NEOs. In Near-Earth Objects: The United Nations International Conference (Annals of the New York Academy of Science, vol. 822) (ed. Remo, J. L.). New York: New York Academy of Science, pp. 552–565.Google Scholar