Probing ion species separation and ion thermal decoupling in shock-driven implosions using multiple nuclear reaction histories
Abstract
Simultaneously measured DD, DT, and D3He reaction histories are used to probe the impacts of multi-ion physics during the shock phase of inertial confinement fusion implosions. In these relatively hydrodynamiclike (burn-averaged Knudsen number ⟨NK⟩ ~0.3) shock-driven implosions, average-ion hydrodynamic DUED simulations are able to reasonably match burnwidths, nuclear yields, and ion temperatures. However, kinetic-ion FPION simulations are able to better simulate the timing differences and time-resolved reaction rate ratios between DD, DT, and D3He reactions. FPION simulations suggest that the D3He/DT reaction rate ratio is most directly impacted by ion species separation between the 3He and T ions, whereas the D3He/DD reaction rate ratio is affected by both ion species separation and ion temperature decoupling effects.
- Authors:
-
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center
- Alternative Energies and Atomic Energy Commission (CEA), Arpajon (France). DAM Ile-de-France (DIF)
- Univ. degli Studi di Roma “La Sapienza,” Roma (Italy)
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics
- Publication Date:
- Research Org.:
- Krell Institute, Ames, IA (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Ohio Univ., Athens, OH (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1614443
- Alternate Identifier(s):
- OSTI ID: 1545415
- Grant/Contract Number:
- FC52-08NA28752; NA0001857; NA0002035; NA0002905; NA0002949
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 26; Journal Issue: 7; 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; Physics; Shock dynamics; Plasma confinement; Fusion reactors; Hydrodynamic codes
Citation Formats
Sio, H., Larroche, O., Atzeni, S., Kabadi, N. V., Frenje, J. A., Gatu Johnson, M., Stoeckl, C., Li, C. K., Forrest, C. J., Glebov, V., Adrian, P. J., Bose, A., Birkel, A., Regan, S. P., Seguin, F. H., and Petrasso, R. D. Probing ion species separation and ion thermal decoupling in shock-driven implosions using multiple nuclear reaction histories. United States: N. p., 2019.
Web. doi:10.1063/1.5097605.
Sio, H., Larroche, O., Atzeni, S., Kabadi, N. V., Frenje, J. A., Gatu Johnson, M., Stoeckl, C., Li, C. K., Forrest, C. J., Glebov, V., Adrian, P. J., Bose, A., Birkel, A., Regan, S. P., Seguin, F. H., & Petrasso, R. D. Probing ion species separation and ion thermal decoupling in shock-driven implosions using multiple nuclear reaction histories. United States. https://doi.org/10.1063/1.5097605
Sio, H., Larroche, O., Atzeni, S., Kabadi, N. V., Frenje, J. A., Gatu Johnson, M., Stoeckl, C., Li, C. K., Forrest, C. J., Glebov, V., Adrian, P. J., Bose, A., Birkel, A., Regan, S. P., Seguin, F. H., and Petrasso, R. D. Mon .
"Probing ion species separation and ion thermal decoupling in shock-driven implosions using multiple nuclear reaction histories". United States. https://doi.org/10.1063/1.5097605. https://www.osti.gov/servlets/purl/1614443.
@article{osti_1614443,
title = {Probing ion species separation and ion thermal decoupling in shock-driven implosions using multiple nuclear reaction histories},
author = {Sio, H. and Larroche, O. and Atzeni, S. and Kabadi, N. V. and Frenje, J. A. and Gatu Johnson, M. and Stoeckl, C. and Li, C. K. and Forrest, C. J. and Glebov, V. and Adrian, P. J. and Bose, A. and Birkel, A. and Regan, S. P. and Seguin, F. H. and Petrasso, R. D.},
abstractNote = {Simultaneously measured DD, DT, and D3He reaction histories are used to probe the impacts of multi-ion physics during the shock phase of inertial confinement fusion implosions. In these relatively hydrodynamiclike (burn-averaged Knudsen number ⟨NK⟩ ~0.3) shock-driven implosions, average-ion hydrodynamic DUED simulations are able to reasonably match burnwidths, nuclear yields, and ion temperatures. However, kinetic-ion FPION simulations are able to better simulate the timing differences and time-resolved reaction rate ratios between DD, DT, and D3He reactions. FPION simulations suggest that the D3He/DT reaction rate ratio is most directly impacted by ion species separation between the 3He and T ions, whereas the D3He/DD reaction rate ratio is affected by both ion species separation and ion temperature decoupling effects.},
doi = {10.1063/1.5097605},
journal = {Physics of Plasmas},
number = 7,
volume = 26,
place = {United States},
year = {Mon Jul 29 00:00:00 EDT 2019},
month = {Mon Jul 29 00:00:00 EDT 2019}
}
Web of Science
Figures / Tables:
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