PROMPT BETA SPECTROSCOPY AS A DIAGNOSTIC FOR MIX IN IGNITED NIF CAPSULES

@article{Hayes2006PROMPTBS,
  title={PROMPT BETA SPECTROSCOPY AS A DIAGNOSTIC FOR MIX IN IGNITED NIF CAPSULES},
  author={Anna C. Hayes and Gerard Jungman and Johndale C. Solem and Paul Andrew Bradley and Robert S. Rundberg},
  journal={Modern Physics Letters A},
  year={2006},
  volume={21},
  pages={1029-1040}
}
The National Ignition Facility (NIF) technology is designed to drive deuterium–tritium (DT) internal confinement fusion (ICF) targets to ignition using indirect radiation from laser beam energy captured in a hohlraum. Hydrodynamical instabilities at interfaces in the ICF capsule leading to mix between the DT fuel and the ablator shell material are of fundamental physical interest and can affect the performance characteristics of the capsule. Here we describe new radiochemical diagnostics for… 
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A spatially resolved ion temperature diagnostic for the National Ignition Facility.
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Applications of nuclear physics.
  • A. Hayes
  • Physics, Medicine
    Reports on progress in physics. Physical Society
  • 2017
TLDR
A historic summary of the early years in applied nuclear physics is presented, with an emphasis on the huge developments that took place around the time of World War II, and that underlie the physics involved in designs of nuclear explosions, controlled nuclear energy, and nuclear fusion.
Determination of 13C/12C ratios with (d, p) nuclear reactions
Abstract Stable isotope ratios such as 13 C/ 12 C play an important role in many applications including environment and energy research. Since many surface analysis techniques are plagued with

References

SHOWING 1-8 OF 8 REFERENCES
Study of direct-drive, deuterium–tritium gas-filled plastic capsule implosions using nuclear diagnostics at OMEGA
Implosions of direct-drive, deuterium–tritium (DT) gas-filled plastic capsules are studied using nuclear diagnostics at the OMEGA laser facility [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)].
Debris characterization diagnostic for the NIF
Generation of debris from targets and by x-ray ablation of surrounding materials will be a matter of concern for experimenters and National Ignition Facility (NIF) operations. Target chamber and
Inference of mix in direct-drive implosions on OMEGA
Direct-drive implosions on the OMEGA laser [T. R. Boehly, D. L. Brown, R. S. Craxton et al., Opt. Commun. 133, 495 (1997)] have been diagnosed using a wide range of techniques based on neutrons,
The NIF Total Neutron Yield Diagnostic
We have designed a total neutron yield diagnostic for the National Ignition Facility (NIF) which is based on the activation of In and Cu samples. The particular approach that we have chosen is one in
Two-dimensional capsule-hohlraum designs for the National Ignition Facility
This article describes 250, 280, and 350 eV drive temperature copper-doped Be [Be(Cu)] two-dimensional (2-D) capsule-hohlraum designs for the National Ignition Facility (NIF) [Paisner et al., Laser
Hot-spot dynamics and deceleration-phase Rayleigh–Taylor instability of imploding inertial confinement fusion capsules
A model for the deceleration phase of imploding inertial confinement fusion capsules is derived by solving the conservation equations for the hot spot. It is found that heat flux leaving the hot spot