Low Fuel Convergence Path to Direct-Drive Fusion Ignition
Name
PhysRevLett.116.255003.pdf
Size
780.85 KB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Molvig, Kim
Schmitt, Mark J.
Albright, B. J.
Dodd, E. S.
Hoffman, N. M.
McCall, G. H.
Ramsey, S. D.
Date Issued
June 2016
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Molvig, Kim; Schmitt, Mark J. et al. "Low Fuel Convergence Path to Direct-Drive Fusion Ignition." Physical Review Letters 116, 255003 (June 2016): 1-5 © 2016 American Physical Society
Version
Final published version
Abstract
A new class of inertial fusion capsules is presented that combines multishell targets with laser direct drive at low intensity (2.8×10¹⁴ W/cm²) to achieve robust ignition. The targets consist of three concentric, heavy, metal shells, enclosing a volume of tens of μg of liquid deuterium-tritium fuel. Ignition is designed to occur well “upstream” from stagnation, with minimal pusher deceleration to mitigate interface Rayleigh-Taylor growth. Laser intensities below thresholds for laser plasma instability and cross beam energy transfer facilitate high hydrodynamic efficiency (∼10%).
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.116.255003
