The goal of the National Ignition Campaign at the National Ignition Facility is to obtain ignition of an inertially confined fusion capsule. In this work, we describe the neutron imaging system that we are installing at the National Ignition Facility to provide information on the spatial distribution of material in the compressed capsule and any uncompressed fuel. The imager uses an array of 37 gold and tungsten apertures 20-cm long with an apex at 26.5 cm from the source to produce images in a scintillator array at 28-m. By imaging the front and back of the scintillator and gating those images with properly gated microchannel plate gated intensifiers, we expect to obtain two images: one of the primary neutrons from 13-17 MeV and one of the downscattered neutrons from 10-12 MeV. This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
–
Authors
D.N. Fittinghhoff
Lawrence Livermore National Laboratory, Livermore CA 94550
D.E. Bower
LLNL
Lawrence Livermore National Laboratory, Livermore CA 94550
B. Felker
LLNL
Lawrence Livermore National Laboratory, Livermore CA 94550
M. Frank
LLNL
Lawrence Livermore National Laboratory, Livermore CA 94550
J.R. Hollaway
Lawrence Livermore National Laboratory, Livermore CA 94550
D.H. Kalantar
LLNL
Lawrence Livermore National Laboratory, Livermore CA 94550
J.L. Klingmann
Lawrence Livermore National Laboratory, Livermore CA 94550
R.A. Nyholm
Lawrence Livermore National Laboratory, Livermore CA 94550
B.A. Quivey
Lawrence Livermore National Laboratory, Livermore CA 94550
G.P. Roberson
LLNL
Lawrence Livermore National Laboratory, Livermore CA 94550
P.B. Weiss
Lawrence Livermore National Laboratory, Livermore CA 94550
R. Buckles
NSTec
National Security Technologies, Livermore, CA 94550
D. Clark
LANL
Los Alamos National Laboratory, Los Alamos, New Mexico, 87545
D. Esquibel
Los Alamos National Laboratory, Los Alamos, New Mexico, 87545
V. Fatherley
LANL
Los Alamos National Laboratory, Los Alamos, New Mexico, 87545
G. Grim
Los Alamos National Laboratory
LANL
Los Alamos National Laboratory, Los Alamos, New Mexico, 87545
E. Loomis
LANL
Los Alamos National Laboratory
Los Alamos National Laboratory, Los Alamos, New Mexico, 87545
F. Merrill
Los Alamos National Lab
LANL
Los Alamos National Laboratory, Los Alamos, New Mexico, 87545
G. Morgan
LANL
Los Alamos National Laboratory, Los Alamos, New Mexico, 87545
J. Oertel
Los Alamos National Laboratory, Los Alamos, New Mexico, 87545
I.L. Tregillis
Los Alamos National Laboratory
Los Alamos National Laboratory, Los Alamos, New Mexico, 87545
LANL
C. Wilde
Los Alamos National Laboratory, Los Alamos, New Mexico, 87545
M. Wilke
LANL
Los Alamos National Laboratory, Los Alamos, New Mexico, 87545
D. Wilson
LANL
Los Alamos National Laboratory
Los Alamos National Lab
Los Alamos National Laboratory, Los Alamos, New Mexico, 87545
