Development and testing of an active area neutron dosemeter

Brushwood, J. M.; Gow, J. P. D.; Beeley, P. A. and Spyrou, N. M. (2004). Development and testing of an active area neutron dosemeter. Radiation Protection Dosimetry, 110(1-4) pp. 263–266.

DOI: https://doi.org/10.1093/rpd/nch157

Abstract

This paper describes the design, development and testing of an active area neutron dosemeter (AAND). The classic moderator and central detector is retained but in AAND this arrangement is augmented by small thermal neutron detectors positioned within the moderating body. The outputs from these detectors are combined using an appropriately weighted linear super-position to fit both the ambient dose equivalent and the radiation weighting factor. Experimental verifications of both the modelled detector energy reponses and the overall AAND response are given. In the relatively soft D₂O moderated ²⁵²Cf spectra, the AAND determined both the H*(10) and mean radiation weighting factor to better than +10%.

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