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Development of NANA: a fast-scintillator coincidence gamma-ray array for radioactive source characterisation and absolute activity measurements at the UK National Physical Laboratory.

Regan, P H; Shearman, R; Judge, S M; Lorusso, G; Main, P; Bell, S; Collins, S M; Ivanov, P; Jerome, S M; Keightley, J D; Larijani, C; Lotay, G; Pearce, A K (2015) Development of NANA: a fast-scintillator coincidence gamma-ray array for radioactive source characterisation and absolute activity measurements at the UK National Physical Laboratory. J. Phys.: Conf. Ser., 620. 012005

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Abstract

A multi-detector modular coincidence gamma-ay spectrometer is currently being designed and constructed for use at the UK's National Physical Laboratory (NPL) with the aims of being usd for direct measurement and metrological standardisation of nuclear decay activities. In the first generation the NPL-based NAtional Nuclear Array (NANA) will consist of 12 individual halide scintillation detectors placed in a high-efficiency geometry around a well-defined central point source position. This short conference paper provides some details of the measured detector module responsesfor potenial LaBr3(Ce) and CeBr3 detectors which may be used in the NANA array. Peliminary GEANT4 simulations of the array's full energy peak efficiency and expected gamma-ray coincidence response are presented.

Item Type: Article
Keywords: nuclear physics, gamma-ray detector array, LaBr3, CeBr3 scintillators, fast-timing concidence
Subjects: Ionising Radiation
Ionising Radiation > Radioactivity
Identification number/DOI: 10.1088/1742-6496/620/1/012005
Last Modified: 02 Feb 2018 13:13
URI: http://eprintspublications.npl.co.uk/id/eprint/6730

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