Analysis of Dynamic Behavior of the Target and the Deuterium-Tritium Ice in Magnetic-Field Assisted Implosions

Bhandarkar, S.; Kozioziemski, B. J.; Sater, J. D.; Hagler, L. B.; Moody, J. D.

doi:10.1080/15361055.2023.2188968

Title: Analysis of Dynamic Behavior of the Target and the Deuterium-Tritium Ice in Magnetic-Field Assisted Implosions

Journal Article · 07 May 2023 · Fusion Science and Technology

DOI: https://doi.org/10.1080/15361055.2023.2188968 · OSTI ID:2229990

Bhandarkar, S. ^[1]; Kozioziemski, B. J. ^[1]; Sater, J. D. ^[1]; Hagler, L. B. ^[1]; Moody, J. D. ^[1]

Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States). Target Fabrication

The use of strong magnetic fields to augment the output energy of inertial confinement fusion experiments at the National Ignition Facility is of high interest. It offers the potential of reducing electron thermal conduction and increasing hot-spot alpha heating with little to no change in hohlraum behavior. In these magnetically assisted ignition experiments, the ultimate goal is to add a B-field in the form of a pulse ranging from 25 to 60 T to a high-performing hohlraum implosion several microseconds before impingement of the laser beams. This requires eliminating metallic components in the target and replacing them with electrically nonconducting materials. However, the strong eddy currents generated by the rapidly increasing high B-field, which were calculated to be as high as 2000 K, can heat the hohlraum. Here in this paper, we examine the transient effects of this rapid temperature change on the behavior of the target as well as the fuel layer composed typically of deuterium and tritium. Using simulations and calculations for limiting case scenarios, we find that the effect of the heating is not restrictive toward the performance of the target or the quality of the deuterium-tritium ice.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 2229990

Report Number(s):: LLNL--JRNL-857363; 1086595

Journal Information:: Fusion Science and Technology, Journal Name: Fusion Science and Technology Journal Issue: 7 Vol. 79; ISSN 1536-1055

Publisher:: Taylor & FrancisCopyright Statement

Country of Publication:: United States

Language:: English

References (23)

Target Development for the National Ignition Campaign Hamza, A. V.; Nikroo, A.; Alger, E. Fusion Science and Technology, Vol. 69, Issue 1 https://doi.org/10.13182/FST15-163	journal	February 2016
Reactive co-sputtering of ternary Au–Ta–O films with tunable electrical resistivity Shin, S. J.; Bayu Aji, L. B.; Engwall, A. M. Applied Physics Letters, Vol. 121, Issue 14 https://doi.org/10.1063/5.0106774	journal	October 2022
Spectroscopic studies of the vibrational and electronic properties of solid hydrogen to 285 GPa Goncharov, A. F.; Gregoryanz, E.; Hemley, R. J. Proceedings of the National Academy of Sciences, Vol. 98, Issue 25 https://doi.org/10.1073/pnas.201528198	journal	November 2001
Developing depleted uranium and gold cocktail hohlraums for the National Ignition Facility Wilkens, H. L.; Nikroo, A.; Wall, D. R. Physics of Plasmas, Vol. 14, Issue 5 https://doi.org/10.1063/1.2718527	journal	May 2007
Hydrogen Properties for Fusion Energy Souers, P. Clark https://doi.org/10.1525/9780520338401	book	December 1986
Effect of substrate tilt on sputter-deposited AuTa films Engwall, A. M.; Bayu Aji, L. B.; Baker, A. A. Applied Surface Science, Vol. 547 https://doi.org/10.1016/j.apsusc.2021.149010	journal	May 2021
Sputtered Au-Ta films with tunable electrical resistivity Bayu Aji, Leonardus Bimo; Engwall, Alison M.; Bae, John Journal of Physics D: Applied Physics https://doi.org/10.1088/1361-6463/abc501	journal	October 2020
First demonstration of improved capsule implosions by reducing radiation preheat in uranium vs gold hohlraums Dewald, E. L.; Tommasini, R.; Meezan, N. B. Physics of Plasmas, Vol. 25, Issue 9 https://doi.org/10.1063/1.5039385	journal	September 2018
Magnetized ICF implosions: Scaling of temperature and yield enhancement Walsh, C. A.; O'Neill, S.; Chittenden, J. P. Physics of Plasmas, Vol. 29, Issue 4 https://doi.org/10.1063/5.0081915	journal	April 2022
Gold-tantalum alloy films deposited by high-density-plasma magnetron sputtering Bae, J. H.; Bayu Aji, L. B.; Shin, S. J. Journal of Applied Physics, Vol. 130, Issue 16 https://doi.org/10.1063/5.0050901	journal	October 2021
The Magnetized Indirect Drive Project on the National Ignition Facility Moody, J. D.; Pollock, B. B.; Sio, H. Journal of Fusion Energy, Vol. 41, Issue 1 https://doi.org/10.1007/s10894-022-00319-7	journal	May 2022
Design of the NIF Cryogenic Target System Gibson, C. R.; Atkinson, D. P.; Baltz, J. A. Fusion Science and Technology, Vol. 55, Issue 3 https://doi.org/10.13182/FST08-3453	journal	April 2009
Cryogenic Target System for Hydrogen Layering Parham, T.; Kozioziemski, B.; Atkinson, D. Fusion Science and Technology, Vol. 69, Issue 1 https://doi.org/10.13182/FST15-162	journal	February 2016
Infra-Red Absorption Spectrum of Diamond Sutherland, G. B. B. M. Nature, Vol. 157, Issue 3976 https://doi.org/10.1038/157045b0	journal	January 1946
High Pressure:One of the many Tools to Study Material Properties at Extreme Conditions Garg, Nandini Current Science, Vol. 112, Issue 07 https://doi.org/10.18520/cs/v112/i07/1430-1443	journal	April 2017
The potential of imposed magnetic fields for enhancing ignition probability and fusion energy yield in indirect-drive inertial confinement fusion Perkins, L. J.; Ho, D. D. -M; Logan, B. G. Physics of Plasmas, Vol. 24, Issue 6 https://doi.org/10.1063/1.4985150	journal	June 2017
Cryogenic thermonuclear fuel implosions on the National Ignition Facility Glenzer, S. H.; Callahan, D. A.; MacKinnon, A. J. Physics of Plasmas, Vol. 19, Issue 5 https://doi.org/10.1063/1.4719686	journal	May 2012
Stress Analysis of Thin-Walled Pressure Vessels Ibrahim, Ahmed; Ryu, Yeong; Saidpour, Mir Modern Mechanical Engineering, Vol. 05, Issue 01 https://doi.org/10.4236/mme.2015.51001	journal	January 2015
Progress towards ignition on the National Ignition Facility Edwards, M. J.; Patel, P. K.; Lindl, J. D. Physics of Plasmas, Vol. 20, Issue 7 https://doi.org/10.1063/1.4816115	journal	July 2013
Increased Ion Temperature and Neutron Yield Observed in Magnetized Indirectly Driven D2 -Filled Capsule Implosions on the National Ignition Facility Moody, J. D.; Pollock, B. B.; Sio, H. Physical Review Letters, Vol. 129, Issue 19 https://doi.org/10.1103/PhysRevLett.129.195002	journal	November 2022
Study of ultraviolet-visible light absorbance of exfoliated graphite forms Uran, S.; Alhani, A.; Silva, C. AIP Advances, Vol. 7, Issue 3 https://doi.org/10.1063/1.4979607	journal	March 2017
Transient magnetic field diffusion considerations relevant to magnetically assisted indirect drive inertial confinement fusion Moody, J. D.; Johnson, A.; Javedani, J. Physics of Plasmas, Vol. 27, Issue 11 https://doi.org/10.1063/5.0022722	journal	November 2020
Sputter deposition of high electrical resistivity Au-Ta alloy coatings on rotating substrates Engwall, A. M.; Bayu Aji, L. B.; Shin, S. J. Thin Solid Films, Vol. 758 https://doi.org/10.1016/j.tsf.2022.139411	journal	September 2022