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Demonstration of Ignition Radiation Temperatures in Indirect-Drive Inertial Confinement Fusion Hohlraums

S. H. Glenzer et al.
Phys. Rev. Lett. 106, 085004 – Published 25 February 2011; Erratum Phys. Rev. Lett. 106, 109903 (2011)
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Abstract

We demonstrate the hohlraum radiation temperature and symmetry required for ignition-scale inertial confinement fusion capsule implosions. Cryogenic gas-filled hohlraums with 2.2 mm-diameter capsules are heated with unprecedented laser energies of 1.2 MJ delivered by 192 ultraviolet laser beams on the National Ignition Facility. Laser backscatter measurements show that these hohlraums absorb 87% to 91% of the incident laser power resulting in peak radiation temperatures of TRAD=300eV and a symmetric implosion to a 100μm diameter hot core.

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  • Received 14 September 2010
  • Corrected 28 February 2011

DOI:https://doi.org/10.1103/PhysRevLett.106.085004

© 2011 American Physical Society

Corrections

28 February 2011

Erratum

Synopsis

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Big science in a small space

Published 25 February 2011

To create the conditions needed for nuclear fusion, the National Ignition Facility uses high power lasers to generate near solar levels of heat in a pill-size cavity.

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Vol. 106, Iss. 8 — 25 February 2011

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