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Monoenergetic fast neutron reference fields (part II): field characterisation.

Nolte, R*; Thomas, D J (2011) Monoenergetic fast neutron reference fields (part II): field characterisation. Metrologia, 48 (6). S274-S291

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Abstract

Monoenergetic neutron reference fields are required for the calibration of neutron detectors and dosemeters for various applications ranging from nuclear physics and nuclear data measurements to radiation protection. In a series of two separate publications the metrological aspects of the production and measurement of fast neutrons are reviewed. In the first part, requirements fonr the nuclear reactions used to produce neutron fields as well as methods for target characterisation and the general layout of reference facilities are discussed. This second part focuses on the most important techniques for field characterisation and includes the determination of the neutron fluence as well as the spectral neutron distribution and the determination of the fluence of contaminating photons. The measurements are usually carried out relative to reference cross section which are reviewed in a separate contribution, but for certain conditions `absolute¿ methods for neutron measurements can be used which are directly traceable to the international system of unit.

Item Type: Article
Keywords: Neutron metrology
Subjects: Ionising Radiation
Ionising Radiation > Neutron Metrology
Identification number/DOI: 10.1088/0026-1394/48/6/S05
Last Modified: 02 Feb 2018 13:14
URI: http://eprintspublications.npl.co.uk/id/eprint/5294

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