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A new neutron time-of-flight detector for fuel-areal-density measurements on OMEGA.
Glebov, V Yu; Forrest, C J; Marshall, K L; Romanofsky, M; Sangster, T C; Shoup, M J; Stoeckl, C.
Affiliation
  • Glebov VY; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Forrest CJ; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Marshall KL; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Romanofsky M; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Sangster TC; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Shoup MJ; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Stoeckl C; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
Rev Sci Instrum ; 85(11): 11E102, 2014 Nov.
Article in En | MEDLINE | ID: mdl-25430281
ABSTRACT
A new neutron time-of-flight (nTOF) detector for fuel-areal-density measurements in cryogenic DT implosions was installed on the OMEGA Laser System. The nTOF detector has a cylindrical thin-wall, stainless-steel, 8-in.-diam, 4-in.-thick cavity filled with an oxygenated liquid xylene scintillator. Four gated photomultiplier tubes (PMTs) with different gains are used to measure primary DT and D2 neutrons, down-scattered neutrons in nT and nD kinematic edge regions, and to study tertiary neutrons in the same detector. The nTOF detector is located 13.4 m from target chamber center in a well-collimated line of sight. The design details of the nTOF detector, PMT optimization, and test results on OMEGA will be presented.
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Full text: 1 Database: MEDLINE Language: En Year: 2014 Type: Article
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Full text: 1 Database: MEDLINE Language: En Year: 2014 Type: Article