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Title: Reconstructing 3-D Asymmetries in Laser-Direct-Drive Implosions on OMEGA

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 3-D measurements of the conditions of the fusing hot spot and compressed fuel near peak compression. The uncertainties involved in these 3-D 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.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
DOE Contract Number:  
NA0003856
Research Org.:
Univ. of Rochester, NY (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
OSTI Identifier:
1887791
DOI:
https://doi.org/10.7910/DVN/P05LCM

Citation Formats

Mannion, O. M., Woo, K. M., Crilly, A. J., Forrest, C. J., Frenje, J. A., Glebov, V. Yu., Gatu Johnson, M., Knauer, J. P., Mohamed, Z. L., Romanofsky, M. H., Stoeckl, C., Theobald, W., and Regan, S. P. Reconstructing 3-D Asymmetries in Laser-Direct-Drive Implosions on OMEGA. United States: N. p., 2021. Web. doi:10.7910/DVN/P05LCM.
Mannion, O. M., Woo, K. M., Crilly, A. J., Forrest, C. J., Frenje, J. A., Glebov, V. Yu., Gatu Johnson, M., Knauer, J. P., Mohamed, Z. L., Romanofsky, M. H., Stoeckl, C., Theobald, W., & Regan, S. P. Reconstructing 3-D Asymmetries in Laser-Direct-Drive Implosions on OMEGA. United States. doi:https://doi.org/10.7910/DVN/P05LCM
Mannion, O. M., Woo, K. M., Crilly, A. J., Forrest, C. J., Frenje, J. A., Glebov, V. Yu., Gatu Johnson, M., Knauer, J. P., Mohamed, Z. L., Romanofsky, M. H., Stoeckl, C., Theobald, W., and Regan, S. P. 2021. "Reconstructing 3-D Asymmetries in Laser-Direct-Drive Implosions on OMEGA". United States. doi:https://doi.org/10.7910/DVN/P05LCM. https://www.osti.gov/servlets/purl/1887791. Pub date:Mon Aug 16 00:00:00 EDT 2021
@article{osti_1887791,
title = {Reconstructing 3-D Asymmetries in Laser-Direct-Drive Implosions on OMEGA},
author = {Mannion, O. M. and Woo, K. M. and Crilly, A. J. and Forrest, C. J. and Frenje, J. A. and Glebov, V. Yu. and Gatu Johnson, M. and Knauer, J. P. and Mohamed, Z. L. and Romanofsky, M. H. and Stoeckl, C. and Theobald, W. and Regan, S. P.},
abstractNote = {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 3-D measurements of the conditions of the fusing hot spot and compressed fuel near peak compression. The uncertainties involved in these 3-D 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.},
doi = {10.7910/DVN/P05LCM},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {8}
}

Works referencing / citing this record:

Reconstructing 3D asymmetries in laser-direct-drive implosions on OMEGA
journal, March 2021