Abstract
The scintillation method of Harvey and Weeks (1982) has been extended to the counting of etched tracks in CR-39 made by thermal and fast neutrons. In Part I, we report our work on thermal neutron detection. Here, CR-39 detectors, palced in contact with both Li 2 B 4 O 7 and BNl converter screens, have been exposed to neutrons from portable sources, with suitable moderation. The chemically etched (n,α) pits are filled with scintillator material, and the light pulses caused by a strong readout α-source are detected by a photomultiplier. The linearity of response with this method has been tested for tracks made by α-particles of different energies (1 - 5.5 MeV). The response remains linear so long as serious overlapping of etch pits does not occur. The method promises to offer a quick and automatic technique for neutron dosimetry.
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Schedule a callMore From: International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements
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