EPJ Web of Conferences (Nov 2013)

The neutron imaging system fielded at the National Ignition Facility

  • Fittinghoff D.N.,
  • Atkinson D.P.,
  • Bower D.E.,
  • Drury O.B.,
  • Dzenitis J.M.,
  • Frank M.,
  • Liddick S.N.,
  • Moran M.J.,
  • Roberson G.P.,
  • Weiss P.B.,
  • Grim G.P.,
  • Aragonez R.J.,
  • Archuleta T.N.,
  • Batha S.H.,
  • Clark D.D.,
  • Clark D.J.,
  • Danly C.R.,
  • Day R.D.,
  • Fatherley V.E.,
  • Finch J.P.,
  • Garcia F.P.,
  • Gallegos R.A.,
  • Guler N.,
  • Hsu A.H.,
  • Jaramillo S.A.,
  • Loomis E.N.,
  • Mares D.,
  • Martinson D.D.,
  • Merrill F.E.,
  • Morgan G.L.,
  • Munson C.,
  • Murphy T.J.,
  • Oertel J.A.,
  • Polk P.J.,
  • Schmidt D.W.,
  • Tregillis I.L.,
  • Valdez A.C.,
  • Volegov P.L.,
  • Wang T.F.,
  • Wilde C.H.,
  • Wilke M.D.,
  • Wilson D.C.,
  • Buckles R.A.,
  • Cradick J.R.,
  • Kaufman M.I.,
  • Lutz S.S.,
  • Malone R.M.,
  • Traille A.

DOI
https://doi.org/10.1051/epjconf/20135913016
Journal volume & issue
Vol. 59
p. 13016

Abstract

Read online

We have fielded a neutron imaging system at the National Ignition Facility to collect images of fusion neutrons produced in the implosion of inertial confinement fusion experiments and scattered neutrons from (n, n′) reactions of the source neutrons in the surrounding dense material. A description of the neutron imaging system is presented, including the pinhole array aperture, the line-of-sight collimation, the scintillator-based detection system and the alignment systems and methods. Discussion of the alignment and resolution of the system is presented. We also discuss future improvements to the system hardware.