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Three-dimensional diagnostics and measurements of inertial confinement fusion plasmas
- Source :
- Review of Scientific Instruments. 92:053526
- Publication Year :
- 2021
- Publisher :
- AIP Publishing, 2021.
-
Abstract
- Recent inertial confinement fusion measurements have highlighted the importance of 3D asymmetry effects on implosion performance. One prominent example is the bulk drift velocity of the deuterium–tritium plasma undergoing fusion (“hotspot”), vHS. Upgrades to the National Ignition Facility neutron time-of-flight diagnostics now provide vHS to better than 1 part in 104 and enable cross correlations with other measurements. This work presents the impact of vHS on the neutron yield, downscatter ratio, apparent ion temperature, electron temperature, and 2D x-ray emission. The necessary improvements to diagnostic suites to take these measurements are also detailed. The benefits of using cross-diagnostic analysis to test hotspot models and theory are discussed, and cross-shot trends are shown.
- Subjects :
- 010302 applied physics
Physics
Drift velocity
media_common.quotation_subject
Implosion
Plasma
01 natural sciences
Asymmetry
010305 fluids & plasmas
Computational physics
0103 physical sciences
Electron temperature
Neutron
National Ignition Facility
Instrumentation
Inertial confinement fusion
media_common
Subjects
Details
- ISSN :
- 10897623 and 00346748
- Volume :
- 92
- Database :
- OpenAIRE
- Journal :
- Review of Scientific Instruments
- Accession number :
- edsair.doi.dedup.....da7e4b2c444031c600cd1b2fa5dd5d0e