[HTML][HTML] Approximate models for the ion-kinetic regime in inertial-confinement-fusion capsule implosions

NM Hoffman, GB Zimmerman, K Molvig… - Physics of …, 2015 - pubs.aip.org
“Reduced”(ie, simplified or approximate) ion-kinetic (RIK) models in radiation-hydrodynamic
simulations permit a useful description of inertial-confinement-fusion (ICF) implosions where …

Self-similar structure and experimental signatures of suprathermal ion distribution in inertial confinement fusion implosions

G Kagan, D Svyatskiy, HG Rinderknecht… - Physical review …, 2015 - APS
The distribution function of suprathermal ions is found to be self-similar under conditions
relevant to inertial confinement fusion hot spots. By utilizing this feature, interference …

A reduced kinetic method for investigating non-local ion heat transport in ideal multi-species plasmas

NT Mitchell, DA Chapman, CJ McDevitt… - Plasma Physics and …, 2024 - iopscience.iop.org
A reduced kinetic method (RKM) with a first-principles collision operator is introduced in a
1D2V planar geometry and implemented in a computationally inexpensive code to …

Experimental measurements of ion diffusion coefficients and heating in a multi-ion-species plasma shock

F Chu, AL LaJoie, BD Keenan, L Webster… - Physical Review Letters, 2023 - APS
Collisional plasma shocks generated from supersonic flows are an important feature in
many astrophysical and laboratory high-energy-density plasmas. Compared to single-ion …

A comparative study of the tail ion distribution with reduced Fokker–Planck models

CJ McDevitt, XZ Tang, Z Guo, HL Berk - Physics of Plasmas, 2014 - pubs.aip.org
A series of reduced models are used to study the fast ion tail in the vicinity of a transition
layer between plasmas at disparate temperatures and densities, which is typical of the gas …

[HTML][HTML] A physics-informed deep learning description of Knudsen layer reactivity reduction

CJ McDevitt, XZ Tang - Physics of Plasmas, 2024 - pubs.aip.org
A physics-informed neural network (PINN) is used to evaluate the fast ion distribution in the
hot spot of an inertial confinement fusion target. The use of tailored input and output layers to …

[HTML][HTML] Study of the ion kinetic effects in ICF run-away burn using a quasi-1D hybrid model

CK Huang, K Molvig, BJ Albright, ES Dodd… - Physics of …, 2017 - pubs.aip.org
The loss of fuel ions in the Gamow peak and other kinetic effects related to the α particles
during ignition, run-away burn, and disassembly stages of an inertial confinement fusion DT …

[HTML][HTML] Observation of shock-front separation in multi-ion-species collisional plasma shocks

T Byvank, SJ Langendorf, C Thoma, SC Hsu - Physics of Plasmas, 2020 - pubs.aip.org
We observe shock-front separation and species-dependent shock widths in multi-ion-
species collisional plasma shocks, which are produced by obliquely merging plasma jets of …

[HTML][HTML] One-dimensional particle simulations of Knudsen-layer effects on DT fusion

BI Cohen, AM Dimits, GB Zimmerman, SC Wilks - Physics of Plasmas, 2014 - pubs.aip.org
Particle simulations are used to solve the fully nonlinear, collisional kinetic equation
describing the interaction of a high-temperature, high-density, deuterium-tritium plasma with …

Inference of the electron temperature in inertial confinement fusion implosions from the hard X‐ray spectral continuum

G Kagan, OL Landen, D Svyatskiy, H Sio… - … to Plasma Physics, 2019 - Wiley Online Library
Using the free‐free continuum self‐emission spectrum at photon energies above 15 keV is
one of the most promising concepts for assessing the electron temperature in inertial …