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 and a symmetric implosion to a diameter hot core.
- 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
Publisher’s Note: Demonstration of Ignition Radiation Temperatures in Indirect-Drive Inertial Confinement Fusion Hohlraums [Phys. Rev. Lett. 106, 085004 (2011)]
S. H. Glenzer et al.
Phys. Rev. Lett. 106, 109903 (2011)
Synopsis
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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