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Preparation and Reactivity of Gasless Nanostructured Energetic Materials
09:50

Preparation and Reactivity of Gasless Nanostructured Energetic Materials

Published on: April 2, 2015

Diagnostics for fast ignition science (invited).

A G MacPhee1, K U Akli, F N Beg

  • 1Lawrence Livermore National Laboratory, Livermore, California 94551, USA. macphee2@llnl.gov

The Review of Scientific Instruments
|December 3, 2008
PubMed
Summary
This summary is machine-generated.

Researchers developed advanced diagnostics to measure energy transfer in fast ignition inertial confinement fusion. This research provides crucial data for validating simulation codes and advancing fusion energy.

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Laboratory Scale Slow Cook-Off Testing of Rocket Propellants: The Combustion Rate Analysis of a Slowly Heated Propellant (CRASH-P) Test
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Area of Science:

  • Plasma Physics
  • Fusion Energy
  • Laser-Plasma Interactions

Background:

  • Electron fast ignition for inertial confinement fusion requires efficient energy transfer from laser pulses to fuel.
  • MeV electrons are critical for mediating this energy transfer in high-intensity laser-plasma interactions.

Purpose of the Study:

  • To characterize the energy transfer processes from laser pulses to compressed fuel via MeV electrons.
  • To provide critical data for validating particle-in-cell (PIC) and hybrid PIC simulation codes.

Main Methods:

  • Assembled a suite of diagnostics including EUV imagers, crystal imagers, spectrometers, and optical probe interferometers.
  • Simultaneously fielded calibrated instruments to measure X-ray bremsstrahlung, electrons, and protons.
  • Utilized planar and conical targets under ultrahigh intensity laser conditions.

Main Results:

  • Enabled careful measurement of energy transport and deposition during and after laser-plasma interactions.
  • Provided quantitative data on energy coupling at extreme laser intensities.
  • Yielded new insights into the physics of ultrahigh intensity laser-plasma interactions.

Conclusions:

  • The developed diagnostic suite is effective for quantitative analysis of fast ignition fusion experiments.
  • The collected data is vital for improving the accuracy of computational models for fusion energy research.
  • This work advances understanding crucial for fast ignition and other high-intensity laser applications.