Laser Fusion Experiments Using Spherical Shell Targets

  • Roy R. Johnson
  • Peter Hammerling
  • Frederick J. Mayer


Laser-driven implosion experiments using DT-gas-filled spherical glass-shell targets are described. Neutron yields to 5 × 107 are produced from implosions of small(̴ 55-µm-diameter) targets spherically illuminated with an on-target laser power of 0.5 terawatt. Nuclear reaction product diagnostics, X-ray pinhole photographs, fast-ion spectra and X-ray measurements are used in conjunction with hydrodynamic computer code simulations to investigate the implosion phenomenology as well as the target corona evolution. Simulations using completely classical effects are not able to describe the full range of experimental data. The presence of preheat may be required to explain some implosion measurements.


Alpha Particle Neutron Yield Pinhole Camera Neutron Production Anomalous Absorption 
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Copyright information

© Plenum Press, New York 1977

Authors and Affiliations

  • Roy R. Johnson
    • 1
  • Peter Hammerling
    • 1
  • Frederick J. Mayer
    • 1
  1. 1.KMS Fusion, Inc.Ann ArborUSA

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