American Journal of Physics and Applications
Volume 5, Issue 6, November 2017, Pages: 95-98
Received: Aug. 21, 2017;
Accepted: Sep. 11, 2017;
Published: Oct. 20, 2017
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Vijay Kumar Jha, Central Department of Physics, Tribhuvan University, Kathmandu, Nepal; Amrit Campus, Tribhuvan University, Thamel, Kathmandu, Nepal
Compression of Inertial Confinement Fusion (ICF) fuel as required by Lawson Criterion has been of immense value in ICF studies. In this work, the order of compression has been studied on Rocket Model because a high-order reaction force responsible for compression may be seen to act as a rocket motion. It has been seen that the order of compression of lighter fuel such as D-T may be more effective if irradiated by high power Nd laser. The shocks produced as the reaction (Rocket effect) to the surface ablation generated by pulsed laser beams, compress the fuel which is estimated to be effective when the ratio of initial mass to the accelerated one is of the order of 5. The maximum achievable compression by a single strong shock is not more than 4 for a monatomic gas. For weak coalescing shocks to achieve adiabatic compression, the ablation efficiency is found to be maximum when target velocity equals nearly twice the ablation velocity. In such a case, the implosion efficiency of Rocket Model is found to be about 67 percent; neglecting heat loss.
Vijay Kumar Jha,
Study on Compression of ICF Fuel in Rocket Model, American Journal of Physics and Applications.
Vol. 5, No. 6,
2017, pp. 95-98.
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
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J. Nuckolls, L. Wood, A. Thiessen and G Zimmerman, Nature 239, 139 (1972).
J. J. Duderstadt and G. A. Mosses, ICF, John Wiley and sons, (1982).
J. D. Lindl, R. L. McCrory and E. Michael Campbell, Physics Today, American Institute of Physics, 32-35 (September 1992).
R. Betti and O. A. Hurricane, Nature Physics 12, 435–448 (2016).
E. L. Vold, R. M. Rauenzahn, C. H. Aldrich, K. Molvig, A. N. Simakov, and B. M. Haines less, Physics of Plasmas 24, 042702 (2017).
R. S. Craxton, K. S. Anderson, T. R. Boehly, V. N. Goncharov, D. R. Harding, Physics of Plasmas 22, 110501 (2015).
S. M. Alastair, P. Shon, Kevin L. B. Kevin, M. C. Peter, F. Jonathan, R. D. Thomas, J. W. Kuang-Jen, L. K. Margaret, E. S. Michael, F. Mike, N. Abbas, A. H. Omar, Journal of Physics: Conference Series, 717, 012038 (2016).
B. H. Ripin, R. Decoste, S. P. Obenschein, S. E. Bonder, E. A. McLean, F. C. Young, R. R. Whitlock, C. M. Armstrong, J. Grun, J. A. Stamper, S. H. Gold D. J. Nagel, R. H. Lehmberg and J. M. McMahon, Physics Fluids, 23, 1012 (1980).
D. B. Schaeffer, W. Fox, D. Haberberger, G. Fiksel, A. Bhattacharjee, D. H. Barnak, S. X. Hu, and K. Germaschewski Phys. Rev. Lett. 119, 2-14 (July 2017).
R. P. Drake, P. A. Keiter, C. C. Kuranz, G. Malamud, M. Manuel, C. A. Di Stefano, E. J. Gamboa, C. M. Krauland, M. J. MacDonald, W. C. Wan, R. P. Young, D. S. Montgomery, C. Stoeckl and D. H. Froula, Journal of Physics: Conference Series, 688 (1) (2016).