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Thermal Temperature Measurements of Inertial Fusion Implosions.
Jarrott, L C; Bachmann, B; Ma, T; Benedetti, L R; Field, F E; Hartouni, E P; Hatarik, R; Izumi, N; Khan, S F; Landen, O L; Nagel, S R; Nora, R; Pak, A; Peterson, J L; Schneider, M B; Springer, P T; Patel, P K.
Affiliation
  • Jarrott LC; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Bachmann B; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Ma T; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Benedetti LR; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Field FE; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Hartouni EP; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Hatarik R; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Izumi N; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Khan SF; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Landen OL; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Nagel SR; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Nora R; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Pak A; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Peterson JL; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Schneider MB; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Springer PT; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Patel PK; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
Phys Rev Lett ; 121(8): 085001, 2018 Aug 24.
Article in En | MEDLINE | ID: mdl-30192614
ABSTRACT
Accurate measurement of the thermal temperature in inertially confined fusion plasmas is essential for characterizing ignition performance and validating the basic physics understanding of the stagnation conditions. We present experimental results from cryogenic deuterium-tritium implosions on the National Ignition Facility using a differential filter spectrometer designed to measure the thermal electron temperature from x-ray continuum emission from the stagnated plasma. Furthermore, electron temperature measurements, used in conjunction with the Doppler-broadened DT neutron spectra, allow one to infer the partition of energy in the hot spot between internal energy and unconverted kinetic energy.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2018 Type: Article Affiliation country: United States
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2018 Type: Article Affiliation country: United States