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Title: Origins and effects of mix on magnetized liner inertial fusion target performance

Abstract

In magneto-inertial-fusion experiments, energy losses such as a radiation need to be well controlled in order to maximize the compressional work done on the fuel and achieve thermonuclear conditions. One possible cause for high radiation losses is high-Z material mixing from the target components into the fuel. In this work, we analyze the effects of mix on target performance in Magnetized Liner Inertial Fusion (MagLIF) experiments at Sandia National Laboratories. Our results show that mix is likely produced from a variety of sources, approximately half of which originates during the laser heating phase and the remainder near stagnation, likely from the liner deceleration. By changing the “cushion” component of MagLIF targets from Al to Be, we achieved a 10× increase in neutron yield, a 60% increase in ion temperature, and an ~50% increase in fuel energy at stagnation.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1];  [1];  [1]; ORCiD logo [1];  [1];  [1]; ORCiD logo [1];  [1];  [1];  [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1];  [1];  [1];  [1];  [1] more »;  [2]; ORCiD logo [3] « less
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Univ. of Michigan, Ann Arbor, MI (United States)
  3. Univ. of Rochester, NY (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1545339
Grant/Contract Number:  
AC52-07NA27344; PHY-1725178; NA0001944; NA0003525; SC0016252
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 26; Journal Issue: 1; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS

Citation Formats

Knapp, P. F., Gomez, M. R., Hansen, S. B., Glinsky, M. E., Jennings, C. A., Slutz, S. A., Harding, E. C., Hahn, K. D., Weis, M. R., Evans, M., Martin, M. R., Harvey-Thompson, A. J., Geissel, M., Smith, I. C., Ruiz, D. E., Peterson, K. J., Jones, B. M., Schwarz, J., Rochau, G. A., Sinars, D. B., McBride, R. D., and Gourdain, P. -A. Origins and effects of mix on magnetized liner inertial fusion target performance. United States: N. p., 2019. Web. doi:10.1063/1.5064548.
Knapp, P. F., Gomez, M. R., Hansen, S. B., Glinsky, M. E., Jennings, C. A., Slutz, S. A., Harding, E. C., Hahn, K. D., Weis, M. R., Evans, M., Martin, M. R., Harvey-Thompson, A. J., Geissel, M., Smith, I. C., Ruiz, D. E., Peterson, K. J., Jones, B. M., Schwarz, J., Rochau, G. A., Sinars, D. B., McBride, R. D., & Gourdain, P. -A. Origins and effects of mix on magnetized liner inertial fusion target performance. United States. doi:10.1063/1.5064548.
Knapp, P. F., Gomez, M. R., Hansen, S. B., Glinsky, M. E., Jennings, C. A., Slutz, S. A., Harding, E. C., Hahn, K. D., Weis, M. R., Evans, M., Martin, M. R., Harvey-Thompson, A. J., Geissel, M., Smith, I. C., Ruiz, D. E., Peterson, K. J., Jones, B. M., Schwarz, J., Rochau, G. A., Sinars, D. B., McBride, R. D., and Gourdain, P. -A. Fri . "Origins and effects of mix on magnetized liner inertial fusion target performance". United States. doi:10.1063/1.5064548. https://www.osti.gov/servlets/purl/1545339.
@article{osti_1545339,
title = {Origins and effects of mix on magnetized liner inertial fusion target performance},
author = {Knapp, P. F. and Gomez, M. R. and Hansen, S. B. and Glinsky, M. E. and Jennings, C. A. and Slutz, S. A. and Harding, E. C. and Hahn, K. D. and Weis, M. R. and Evans, M. and Martin, M. R. and Harvey-Thompson, A. J. and Geissel, M. and Smith, I. C. and Ruiz, D. E. and Peterson, K. J. and Jones, B. M. and Schwarz, J. and Rochau, G. A. and Sinars, D. B. and McBride, R. D. and Gourdain, P. -A.},
abstractNote = {In magneto-inertial-fusion experiments, energy losses such as a radiation need to be well controlled in order to maximize the compressional work done on the fuel and achieve thermonuclear conditions. One possible cause for high radiation losses is high-Z material mixing from the target components into the fuel. In this work, we analyze the effects of mix on target performance in Magnetized Liner Inertial Fusion (MagLIF) experiments at Sandia National Laboratories. Our results show that mix is likely produced from a variety of sources, approximately half of which originates during the laser heating phase and the remainder near stagnation, likely from the liner deceleration. By changing the “cushion” component of MagLIF targets from Al to Be, we achieved a 10× increase in neutron yield, a 60% increase in ion temperature, and an ~50% increase in fuel energy at stagnation.},
doi = {10.1063/1.5064548},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 1,
volume = 26,
place = {United States},
year = {2019},
month = {1}
}

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Cited by: 7 works
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