Neutron spectra from inertial confinement fusion targets for measurement of fuel areal density and charged particle stopping powers

1987 ◽  
Vol 62 (6) ◽  
pp. 2233-2236 ◽  
Author(s):  
M. D. Cable ◽  
S. P. Hatchett
Keyword(s):  
Charged Particle ◽  
Inertial Confinement Fusion ◽  
Areal Density ◽  
Inertial Confinement ◽  
Neutron Spectra ◽  
Confinement Fusion

High-resolution spectroscopy used to measure inertial confinement fusion neutron spectra on Omega (invited)

2012 ◽  
Vol 83 (10) ◽  
pp. 10D919 ◽  
Author(s):  
C. J. Forrest ◽  
P. B. Radha ◽  
V. Yu. Glebov ◽  
V. N. Goncharov ◽  
J. P. Knauer ◽  
...  
Keyword(s):  
High Resolution ◽  
Inertial Confinement Fusion ◽  
High Resolution Spectroscopy ◽  
Inertial Confinement ◽  
Neutron Spectra ◽  
Fusion Neutron ◽  
Confinement Fusion

Radiation and electron thermal conduction damping of acoustic perturbations in igniting deuterium–tritium gas

2019 ◽  
Vol 85 (6) ◽  
Author(s):  
Conner D. Galloway ◽  
Robert O. Hunter ◽  
Alexander V. Valys ◽  
Gene H. McCall
Keyword(s):  
Dispersion Relation ◽  
Acoustic Waves ◽  
Thermal Conduction ◽  
Inertial Confinement Fusion ◽  
Equilibrium Configuration ◽  
Areal Density ◽  
Inertial Confinement ◽  
Confinement Fusion ◽  
Electron Thermal Conduction ◽  
Low Order

We derive a dispersion relation for the damping of acoustic waves in equi-molar deuterium–tritium (DT) gas due to radiation coupling and electron thermal conduction and discuss its significance for inertial confinement fusion (ICF) targets with high-Z shells surrounding a central DT fuel region. As the shell implodes around DT fuel in such a target, shocks and waves are transmitted through the DT gas. If the shell is perturbed due to drive non-uniformity or manufacturing imperfection, these shocks and waves may be perturbed as well, and can potentially re-perturb the shell. This can complicate calculation of shell stability and implosion asymmetry and in general make the target less robust against implosion non-uniformity. Damping of perturbations in DT gas can alleviate these complications. Also, damping of low-order modes, which is primarily due to radiation coupling, can drive the DT gas to an isobaric and isothermal ‘equilibrium’ configuration during ignition. We find that for the range of common ignition temperatures in targets with high-Z shells, $2.5\lesssim T_{ig}\lesssim 3.5$  keV, damping of low-order modes is significant for areal densities ( $\unicode[STIX]{x1D70C}r$ ) in the broad range of $0.6\lesssim \unicode[STIX]{x1D70C}r\lesssim 1.8~\text{g}~\text{cm}^{-2}$ . This suggests it is advantageous to design these targets to achieve areal densities at ignition within this range. Furthermore, we derive a simple constraint between areal density and temperature, $\unicode[STIX]{x1D70C}r=0.34T_{o}$ where $T_{o}$ is in keV, such that DT gas undergoing equilibrium ignition is optimally robust against non-uniformity.

A novel charged-particle diagnostic for compression in inertial confinement fusion targets

2000 ◽  
Vol 7 (5) ◽  
pp. 1531-1538 ◽  
Author(s):  
P. B. Radha ◽  
S. Skupsky ◽  
R. D. Petrasso ◽  
J. M. Soures
Keyword(s):  
Charged Particle ◽  
Inertial Confinement Fusion ◽  
Inertial Confinement ◽  
Confinement Fusion ◽  
Particle Diagnostic

Five‐frame, x‐ray camera for charged particle, inertial confinement fusion studies

1980 ◽  
Vol 51 (3) ◽  
pp. 292-298 ◽  
Author(s):  
D. L. Fehl ◽  
J. Chang ◽  
G. W. Kuswa ◽  
C. W. Mendel
Keyword(s):  
Charged Particle ◽  
Inertial Confinement Fusion ◽  
Inertial Confinement ◽  
X Ray ◽  
Confinement Fusion

scholarly journals Time resolved ablator areal density during peak fusion burn on inertial confinement fusion implosions

2021 ◽  
Vol 28 (3) ◽  
pp. 032701
Author(s):  
K. D. Meaney ◽  
N. M. Hoffman ◽  
Y. Kim ◽  
H. Geppert-Kleinrath ◽  
H. W. Herrmann ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Areal Density ◽  
Inertial Confinement ◽  
Time Resolved ◽  
Confinement Fusion ◽  
Fusion Implosions
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