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Title: Numerical study of core formation of asymmetrically driven cone-guided targets

Abstract

Compression of a directly driven fast ignition cone-sphere target with a finite number of laser beams is numerically studied using a three-dimensional hydrodynamics code IMPACT-3D. The formation of a dense plasma core is simulated for 12-, 9-, 6-, and 4-beam configurations of the GEKKO XII laser. The complex 3D shapes of the cores are analyzed by elucidating synthetic 2D x-ray radiographic images in two orthogonal directions. Finally, the simulated x-ray images show significant differences in the core shape between the two viewing directions and rotation of the stagnating core axis in the top view for the axisymmetric 9- and 6-beam configurations.

Authors:
ORCiD logo [1]; ORCiD logo [2]
  1. Univ. of Nevada, Reno, NV (United States); Osaka Univ. (Japan)
  2. National Inst. of Natural Sciences, Toki (Japan). National Inst. for Fusion Science
Publication Date:
Research Org.:
Univ. of Nevada, Reno, NV (United States); National Inst. of Natural Sciences, Toki (Japan)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24); USDOE National Nuclear Security Administration (NNSA); Univ. of Nevada, Reno (United States); National Inst. for Fusion Science (NIFS) (Japan); US-Japan Fusion Research Collaboration
OSTI Identifier:
1393843
Alternate Identifier(s):
OSTI ID: 1394029
Grant/Contract Number:  
SC0008827; NA0002075; 1201-121-1430; NIFS13KUGK072; H28-JF-4
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 24; Journal Issue: 10; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; hydrodynamics; lasers; plasma confinement; x-rays; medical imaging

Citation Formats

Sawada, Hiroshi, and Sakagami, Hitoshi. Numerical study of core formation of asymmetrically driven cone-guided targets. United States: N. p., 2017. Web. doi:10.1063/1.4996256.
Sawada, Hiroshi, & Sakagami, Hitoshi. Numerical study of core formation of asymmetrically driven cone-guided targets. United States. https://doi.org/10.1063/1.4996256
Sawada, Hiroshi, and Sakagami, Hitoshi. Fri . "Numerical study of core formation of asymmetrically driven cone-guided targets". United States. https://doi.org/10.1063/1.4996256. https://www.osti.gov/servlets/purl/1393843.
@article{osti_1393843,
title = {Numerical study of core formation of asymmetrically driven cone-guided targets},
author = {Sawada, Hiroshi and Sakagami, Hitoshi},
abstractNote = {Compression of a directly driven fast ignition cone-sphere target with a finite number of laser beams is numerically studied using a three-dimensional hydrodynamics code IMPACT-3D. The formation of a dense plasma core is simulated for 12-, 9-, 6-, and 4-beam configurations of the GEKKO XII laser. The complex 3D shapes of the cores are analyzed by elucidating synthetic 2D x-ray radiographic images in two orthogonal directions. Finally, the simulated x-ray images show significant differences in the core shape between the two viewing directions and rotation of the stagnating core axis in the top view for the axisymmetric 9- and 6-beam configurations.},
doi = {10.1063/1.4996256},
url = {https://www.osti.gov/biblio/1393843}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 10,
volume = 24,
place = {United States},
year = {2017},
month = {9}
}

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