The fast-neutron detector described here is expected to be most useful for health physics purposes. The detector is a cobalt disk embedded in a cadmium-cased paraffin moderator. The Co60 produced in a disk during irradiation is measured subsequently with a gamma-ray scintillation spectrometer to determine the integrated neutron exposure. The 5.3-year half life of Co60 permits accurate flux integrals to be obtained from exposure times as long as 1 year. The detector-spectrometer system can measure integrated exposures of 1 × 107 n/cm2 or greater; the limit on the minimum detectable flux integral is imposed by spectrometer background count rate.
No takes yet. Share an insight, caveat, or question.
Alan Р. Smith (1961) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: