Visualizing fast electron energy transport into laser-compressed high-density fast-ignition&nbsp;targets

Jarrott, L. C.; Wei, M. S.; McGuffey, C.; Solodov, A. A.; Theobald, W.; Qiao, B.; Stoeckl, C.; Betti, R.; Chen, H.; Delettrez, J.; Döppner, T.; Giraldez, E. M.; Glebov, V. Y.; Habara, H.; Iwawaki, T.; Key, M. H.; Luo, R. W.; Marshall, F. J.; McLean, H. S.; Mileham, C.; Patel, P. K.; Santos, J. J.; Sawada, H.; Stephens, R. B.; Yabuuchi, T.; Beg, F. N.

doi:10.1038/nphys3614

Visualizing fast electron energy transport into laser-compressed high-density fast-ignition targets

Journal Article · Mon Jan 11 00:00:00 EST 2016 · Nature Physics

DOI:https://doi.org/10.1038/nphys3614· OSTI ID:1347276

Jarrott, L. C. ^[1]; Wei, M. S. ^[2]; McGuffey, C. ^[3]; Solodov, A. A. ^[4]; Theobald, W. ^[5]; Qiao, B. ^[6]; Stoeckl, C. ^[5]; Betti, R. ^[4]; Chen, H. ^[7]; Delettrez, J. ^[5]; Döppner, T. ^[7]; Giraldez, E. M. ^[2]; Glebov, V. Y. ^[5]; Habara, H. ^[8]; Iwawaki, T. ^[8]; Key, M. H. ^[7]; Luo, R. W. ^[2]; Marshall, F. J. ^[5]; McLean, H. S. ^[7]; Mileham, C. ^[5] more »

Univ. of California, San Diego, CA (United States). Center for Energy; NNSA
General Atomics, San Diego, CA (United States)
Univ. of California, San Diego, CA (United States). Center for Energy
Univ. of Rochester, NY (United States). Lab. for Laser Energetics, and Fusion Science Center
Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Univ. of California, San Diego, CA (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Osaka Univ., Suita, Osaka (Japan)
Univ. of Bordeaux, Talence (France)
Univ. of Nevada, Reno, NV (United States)

Understanding of fast electron generation inside the cone and their subsequent transport into hot dense plasmas is crucial to the success of the cone guided fast ignition (FI) scheme of inertial confinement fusion. In our prior work, we developed a new platform that measured, for the first time, the spatial map of fast electron transport in the vicinity of the core of an imploded shell in joint OMEGA and OMEGA EP experiments. In this University of California San Diego-led NLUF project we are using the same platform to investigate several methods of improving coupling efficiency into an imploded CH/CD shell attached to a re-entrant gold cone targets. The shell has an outer diameter of 870 µm consisting of a 15 µm thick outer CH ablator and a 23 µm thick inner CD layer. A Cu dopant (at ~ 1% atomic number density of CD) is added to the CD layer of the shell, which allows characterization of fast electrons transport via their induced Cu K-shell fluorescence radiation.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of California, San Diego, CA (United States); Univ. of Rochester, NY (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP)

Grant/Contract Number:: FC02-04ER54789; NA0000854; NA0001944; NA0002033

OSTI ID:: 1347276

Report Number(s):: DOE-UCSD--2033

Journal Information:: Nature Physics, Journal Name: Nature Physics Journal Issue: 5 Vol. 12; ISSN 1745-2473

Publisher:: Nature Publishing Group (NPG)Copyright Statement

Country of Publication:: United States

Language:: English

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