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Title: Polar-direct-drive experiments with contoured-shell targets on OMEGA

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4940939· OSTI ID:1239813
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  1. Univ. of Rochester, Rochester, NY (United States)
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  3. General Atomics, San Diego, CA (United States)

Polar-driven direct-drive experiments recently performed on the OMEGA Laser System have demonstrated the efficacy of using a target with a contoured shell with varying thickness to improve the symmetry and fusion performance of the implosion. The polar-driven contoured-shell implosions have substantially reduced low mode perturbations compared to polar-driven spherical-shell implosions as diagnosed by x-ray radiographs up to shell stagnation. As a result, fusion yields were increased by more than a factor of ~2 without increasing the energy of the laser by the use of contoured shells.

Research Organization:
Univ. of Rochester, NY (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
NA0001944
OSTI ID:
1239813
Alternate ID(s):
OSTI ID: 1236280
Journal Information:
Physics of Plasmas, Vol. 23, Issue 1; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

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Cited By (3)

Laser-direct-drive program: Promise, challenge, and path forward journal March 2017
Mitigation of cross-beam energy transfer in ignition-scale polar-direct-drive target designs for the National Ignition Facility journal July 2018
A theoretical model for low-mode asymmetries in ICF implosions journal February 2019

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