Down-scattered neutron imaging detector for areal density measurement of inertial confinement fusion

2010 ◽  
Vol 81 (10) ◽  
pp. 10D303 ◽  
Author(s):  
Y. Arikawa ◽  
K. Yamanoi ◽  
T. Nakazato ◽  
E. S. Estacio ◽  
T. Shimizu ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Density Measurement ◽  
Areal Density ◽  
Neutron Imaging ◽  
Inertial Confinement ◽  
Scattered Neutron ◽  
Imaging Detector ◽  
Confinement Fusion

Design of Neutron Imaging Aperture for Inertial Confinement Fusion in Laser Fusion Research Center

2019 ◽  
Vol 14 (11) ◽  
pp. C11007-C11007
Author(s):  
Z. Chen ◽  
X. Zhang ◽  
F. Wang ◽  
J. Zheng ◽  
X. Wang ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Neutron Imaging ◽  
Research Center ◽  
Laser Fusion ◽  
Inertial Confinement ◽  
Fusion Research ◽  
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.

Energy-resolved neutron imaging for inertial confinement fusion

2003 ◽  
Vol 74 (3) ◽  
pp. 1701-1704 ◽  
Author(s):  
M. J. Moran ◽  
S. W. Haan ◽  
S. P. Hatchett ◽  
N. Izumi ◽  
J. A. Koch ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Neutron Imaging ◽  
Inertial Confinement ◽  
Confinement Fusion

Development of the large neutron imaging system for inertial confinement fusion experiments

2012 ◽  
Vol 83 (3) ◽  
pp. 033502 ◽  
Author(s):  
T. Caillaud ◽  
O. Landoas ◽  
M. Briat ◽  
S. Kime ◽  
B. Rossé ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Imaging System ◽  
Neutron Imaging ◽  
Inertial Confinement ◽  
Confinement Fusion ◽  
Fusion Experiments

Development of a neutron imaging diagnostic for inertial confinement fusion experiments

2001 ◽  
Vol 72 (1) ◽  
pp. 865-868 ◽  
Author(s):  
G. L. Morgan ◽  
R. R. Berggren ◽  
P. A. Bradley ◽  
F. H. Cverna ◽  
J. R. Faulkner ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Neutron Imaging ◽  
Inertial Confinement ◽  
Confinement Fusion ◽  
Fusion Experiments

Neutron imaging of inertial confinement fusion targets at Nova

1988 ◽  
Vol 59 (8) ◽  
pp. 1694-1696 ◽  
Author(s):  
D. Ress ◽  
R. A. Lerche ◽  
R. J. Ellis ◽  
S. M. Lane ◽  
K. A. Nugent
Keyword(s):  
Inertial Confinement Fusion ◽  
Neutron Imaging ◽  
Inertial Confinement ◽  
Confinement Fusion
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