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A multi-channel x-ray temporal diagnostic for measurement of time-resolved electron temperature in cryogenic deuterium-tritium implosions at OMEGA.
Kabadi, N; Sorce, A; Stoeckl, C; Sio, H W; Adrian, P; Bedzyk, M; Frenje, J; Katz, J; Knauer, J; Pearcy, J; Weiner, D; Aguirre, B A; Betti, R; Birkel, A; Cao, D; Gatu Johnson, M; Patel, D; Petrasso, R D; Regan, S P.
Afiliación
  • Kabadi N; Massachusetts Institute of Technology Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA.
  • Sorce A; University of Rochester Laboratory for Laser Energetics, Rochester, New York 14623, USA.
  • Stoeckl C; University of Rochester Laboratory for Laser Energetics, Rochester, New York 14623, USA.
  • Sio HW; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Adrian P; Massachusetts Institute of Technology Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA.
  • Bedzyk M; University of Rochester Laboratory for Laser Energetics, Rochester, New York 14623, USA.
  • Frenje J; Massachusetts Institute of Technology Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA.
  • Katz J; University of Rochester Laboratory for Laser Energetics, Rochester, New York 14623, USA.
  • Knauer J; University of Rochester Laboratory for Laser Energetics, Rochester, New York 14623, USA.
  • Pearcy J; Massachusetts Institute of Technology Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA.
  • Weiner D; University of Rochester Laboratory for Laser Energetics, Rochester, New York 14623, USA.
  • Aguirre BA; Sandia National Laboratories, Albuquerque, New Mexico 87123, USA.
  • Betti R; University of Rochester Laboratory for Laser Energetics, Rochester, New York 14623, USA.
  • Birkel A; Massachusetts Institute of Technology Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA.
  • Cao D; University of Rochester Laboratory for Laser Energetics, Rochester, New York 14623, USA.
  • Gatu Johnson M; Massachusetts Institute of Technology Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA.
  • Patel D; University of Rochester Laboratory for Laser Energetics, Rochester, New York 14623, USA.
  • Petrasso RD; Massachusetts Institute of Technology Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA.
  • Regan SP; University of Rochester Laboratory for Laser Energetics, Rochester, New York 14623, USA.
Rev Sci Instrum ; 92(2): 023507, 2021 Feb 01.
Article en En | MEDLINE | ID: mdl-33648078
ABSTRACT
Electron-temperature (Te) measurements in implosions provide valuable diagnostic information, as Te is unaffected by residual flows and other non-thermal effects unlike ion temperature inferred from a fusion product spectrum. In OMEGA cryogenic implosions, measurement of Te(t) can be used to investigate effects related to time-resolved hot-spot energy balance. The proposed diagnostic utilizes five fast-rise (∼15 ps) scintillator channels with distinct x-ray filtering. Titanium and stepped aluminum filtering were chosen to maximize detector sensitivity in the 10 keV-20 keV range, as it has been shown that these x rays have similar density and temperature weighting to the emitted deuterium-tritium fusion neutrons. Initial data collected using a prototype nosecone on the existing neutron temporal diagnostic demonstrate the validity of this diagnostic technique. The proposed system will be capable of measuring spatially integrated Te(t) with 20 ps time resolution and <10% uncertainty at peak emission in cryogenic DT implosions.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies Idioma: En Revista: Rev Sci Instrum Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies Idioma: En Revista: Rev Sci Instrum Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos