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Title: Kinetic mix mechanisms in shock-driven inertial confinement fusion implosions

Abstract

Shock-driven implosions of thin-shell capsules, or ''exploding pushers,'' generate low-density, high-temperature plasmas in which hydrodynamic instability growth is negligible and kinetic effects can play an important role. Data from implosions of thin deuterated-plastic shells with hydroequivalent D3He gas fills ranging from pure deuterium to pure 3He [H. G. Rinderknecht et al., Phys. Rev. Lett. 112, 135001 (2014)] were obtained to evaluate non-hydrodynamic fuel-shell mix mechanisms. Simulations of the experiments including reduced ion kinetic models support ion diffusion as an explanation for these data. Several additional kinetic mechanisms are investigated and compared to the data to determine which are important in the experiments. Shock acceleration of shell deuterons is estimated to introduce mix less than or comparable to the amount required to explain the data. Beam-target mechanisms are found to produce yields at most an order of magnitude less than the observations

Authors:
 [1];  [1];  [1]; ;  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [2];  [2];  [2];  [2];  [2];  [3];  [3];  [4];  [4] more »;  [4];  [4];  [4];  [4];  [4];  [5] « less
  1. MIT (Massachusetts Inst. of Technology), Cambridge, MA (United States). Plasma Science and Fusion Center
  2. Lab. for Laser Energetics, Rochester, NY (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  5. General Atomics, San Diego, CA (United States)
Publication Date:
Research Org.:
MIT (Massachusetts Inst. of Technology), Cambridge, MA (United States). Plasma Science and Fusion Center
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1172490
Grant/Contract Number:  
NA0002035; NA0001857; FC52-08NA28752
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 21; Journal Issue: 5; 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

Citation Formats

Rinderknecht, H. G., Sio, H., Li, C. K., Hoffman, N., Zylstra, A. B., Rosenberg, M. J., Frenje, J. A., Gatu Johnson, M., Seguin, F. H., Petrasso, R. D., Betti, R., Yu Glebov, V., Meyerhofer, D. D., Sangster, T. C., Seka, W., Stoeckl, C., Kagan, G., Molvig, K., Bellei, C., Amendt, P., Landen, O., Rygg, J. R., Smalyuk, V. A., Wilks, S., Greenwood, A., and Nikroo, A. Kinetic mix mechanisms in shock-driven inertial confinement fusion implosions. United States: N. p., 2014. Web. doi:10.1063/1.4876615.
Rinderknecht, H. G., Sio, H., Li, C. K., Hoffman, N., Zylstra, A. B., Rosenberg, M. J., Frenje, J. A., Gatu Johnson, M., Seguin, F. H., Petrasso, R. D., Betti, R., Yu Glebov, V., Meyerhofer, D. D., Sangster, T. C., Seka, W., Stoeckl, C., Kagan, G., Molvig, K., Bellei, C., Amendt, P., Landen, O., Rygg, J. R., Smalyuk, V. A., Wilks, S., Greenwood, A., & Nikroo, A. Kinetic mix mechanisms in shock-driven inertial confinement fusion implosions. United States. https://doi.org/10.1063/1.4876615
Rinderknecht, H. G., Sio, H., Li, C. K., Hoffman, N., Zylstra, A. B., Rosenberg, M. J., Frenje, J. A., Gatu Johnson, M., Seguin, F. H., Petrasso, R. D., Betti, R., Yu Glebov, V., Meyerhofer, D. D., Sangster, T. C., Seka, W., Stoeckl, C., Kagan, G., Molvig, K., Bellei, C., Amendt, P., Landen, O., Rygg, J. R., Smalyuk, V. A., Wilks, S., Greenwood, A., and Nikroo, A. Mon . "Kinetic mix mechanisms in shock-driven inertial confinement fusion implosions". United States. https://doi.org/10.1063/1.4876615. https://www.osti.gov/servlets/purl/1172490.
@article{osti_1172490,
title = {Kinetic mix mechanisms in shock-driven inertial confinement fusion implosions},
author = {Rinderknecht, H. G. and Sio, H. and Li, C. K. and Hoffman, N. and Zylstra, A. B. and Rosenberg, M. J. and Frenje, J. A. and Gatu Johnson, M. and Seguin, F. H. and Petrasso, R. D. and Betti, R. and Yu Glebov, V. and Meyerhofer, D. D. and Sangster, T. C. and Seka, W. and Stoeckl, C. and Kagan, G. and Molvig, K. and Bellei, C. and Amendt, P. and Landen, O. and Rygg, J. R. and Smalyuk, V. A. and Wilks, S. and Greenwood, A. and Nikroo, A.},
abstractNote = {Shock-driven implosions of thin-shell capsules, or ''exploding pushers,'' generate low-density, high-temperature plasmas in which hydrodynamic instability growth is negligible and kinetic effects can play an important role. Data from implosions of thin deuterated-plastic shells with hydroequivalent D3He gas fills ranging from pure deuterium to pure 3He [H. G. Rinderknecht et al., Phys. Rev. Lett. 112, 135001 (2014)] were obtained to evaluate non-hydrodynamic fuel-shell mix mechanisms. Simulations of the experiments including reduced ion kinetic models support ion diffusion as an explanation for these data. Several additional kinetic mechanisms are investigated and compared to the data to determine which are important in the experiments. Shock acceleration of shell deuterons is estimated to introduce mix less than or comparable to the amount required to explain the data. Beam-target mechanisms are found to produce yields at most an order of magnitude less than the observations},
doi = {10.1063/1.4876615},
journal = {Physics of Plasmas},
number = 5,
volume = 21,
place = {United States},
year = {Mon May 19 00:00:00 EDT 2014},
month = {Mon May 19 00:00:00 EDT 2014}
}

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Works referencing / citing this record:

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