Your browser doesn't support javascript.
loading
Reconstructing 3D asymmetries in laser-direct-drive implosions on OMEGA.
Mannion, O M; Woo, K M; Crilly, A J; Forrest, C J; Frenje, J A; Johnson, M Gatu; Glebov, V Yu; Knauer, J P; Mohamed, Z L; Romanofsky, M H; Stoeckl, C; Theobald, W; Regan, S P.
Affiliation
  • Mannion OM; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Woo KM; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Crilly AJ; Centre for Inertial Fusion Studies, The Blackett Laboratory, Imperial College, London SW72AZ, United Kingdom.
  • Forrest CJ; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Frenje JA; Massachusetts Institute of Technology, Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA.
  • Johnson MG; Massachusetts Institute of Technology, Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA.
  • Glebov VY; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Knauer JP; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Mohamed ZL; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Romanofsky MH; 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.
  • Theobald W; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Regan SP; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
Rev Sci Instrum ; 92(3): 033529, 2021 Mar 01.
Article in En | MEDLINE | ID: mdl-33819982
ABSTRACT
Three-dimensional reconstruction algorithms have been developed, which determine the hot-spot velocity, hot-spot apparent ion temperature distribution, and fuel areal-density distribution present in laser-direct-drive inertial confinement fusion implosions on the OMEGA laser. These reconstructions rely on multiple independent measurements of the neutron energy spectrum emitted from the fusing plasma. Measurements of the neutron energy spectrum on OMEGA are made using a suite of quasi-orthogonal neutron time-of-flight detectors and a magnetic recoil spectrometer. These spectrometers are positioned strategically around the OMEGA target chamber to provide unique 3D measurements of the conditions of the fusing hot spot and compressed fuel near peak compression. The uncertainties involved in these 3D reconstructions are discussed and are used to identify a new nTOF diagnostic line of sight, which when built will reduce the uncertainty in the hot-spot apparent ion temperature distribution from 700 to <400 eV.
Fulltext
Print
XML
PubMed Links
Search on Google

Full text: 1 Database: MEDLINE Language: En Year: 2021 Type: Article
Fulltext
Print
XML
PubMed Links
Search on Google

Full text: 1 Database: MEDLINE Language: En Year: 2021 Type: Article