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Progress on next generation gamma-ray Cherenkov detectors for the National Ignition Facility.
Herrmann, H W; Kim, Y H; Zylstra, A B; Geppert-Kleinrath, H; Meaney, K D; Young, C S; Lopez, F E; Fatherley, V E; Pederson, B J; Oertel, J A; Hernandez, J E; Carrera, J; Khater, H; Rubery, M S; Horsfield, C J; Gales, S; Leatherland, A; Hilsabeck, T; Kilkenny, J D; Malone, R M; Batha, S H.
Afiliação
  • Herrmann HW; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Kim YH; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Zylstra AB; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Geppert-Kleinrath H; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Meaney KD; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Young CS; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Lopez FE; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Fatherley VE; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Pederson BJ; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Oertel JA; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Hernandez JE; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Carrera J; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Khater H; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Rubery MS; Atomic Weapons Establishment, Aldermaston, Berkshire RG7 4PR, United Kingdom.
  • Horsfield CJ; Atomic Weapons Establishment, Aldermaston, Berkshire RG7 4PR, United Kingdom.
  • Gales S; Atomic Weapons Establishment, Aldermaston, Berkshire RG7 4PR, United Kingdom.
  • Leatherland A; Atomic Weapons Establishment, Aldermaston, Berkshire RG7 4PR, United Kingdom.
  • Hilsabeck T; General Atomics, San Diego, California 92186, USA.
  • Kilkenny JD; General Atomics, San Diego, California 92186, USA.
  • Malone RM; Mission Support and Test Services, LLC, Los Alamos, New Mexico 87544, USA.
  • Batha SH; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
Rev Sci Instrum ; 89(10): 10I148, 2018 Oct.
Article em En | MEDLINE | ID: mdl-30399772
Fusion reaction history and ablator areal density measurements for Inertial Confinement Fusion experiments at the National Ignition Facility are currently conducted using the Gamma Reaction History diagnostic (GRH_6m). Future Gas Cherenkov Detectors (GCDs) will ultimately provide ∼100x more sensitivity, reduce the effective temporal response from ∼100 to ∼10 ps, and lower the energy threshold from 2.9 to 1.8 MeV, relative to GRH_6m. The first phase toward next generation GCDs consisted of inserting the existing coaxial GCD-3 detector into a reentrant well which puts it within 4 m of the implosion. Reaction history and ablator gamma measurement results from this Phase I are discussed here. These results demonstrate viability for the follow-on Phases of (II) the use of a revolutionary new pulse-dilation photomultiplier tube to improve the effective measurement bandwidth by >10x relative to current PMT technology; and (III) the design of a NIF-specific "Super" GCD which will be informed by the assessment of the radiation background environment within the well described here.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article