Recent Evaluations of Scintillators and Phosphors for Fast Neutron Imaging
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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND ↗
Engineering topics
Leak, Charles O.
Publications and source records attributed to Leak, Charles O..
High-Z Semiconductors for h-keV Direct X-Ray Imaging
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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND ↗
Detector Wall Research for Fast Gamma Signal Detection in Neutron-Diagnosed Subcritical Experiment Applications
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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND ↗
Flash Neutron Imaging [Poster]
The NNSS has extensive historical experience with high-fidelity flash neutron imaging which may be applicable to the needs of NA-22. In recent neutron imaging tests, a dense plasma focus (DPF) discharges a capacitor bank across a hydrogen-filled diode to create a flash of fusion neutrons emitted from a point, which can be used for active interrogation. Object inspection may include both radiography transmission imaging as well as emission imaging of the subject via an aperture. A scintillator screen (coupled to a low-Z converter when necessary) converts deposited energy to visible light, which is relayed through optics to an ultra-sensitive visible imager contained in a light-tight box. Flash photon imaging, utilizing bremsstrahlung emission instead of fusion neutrons, is also available and is more mature.
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL P↗