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Progress in providing neutron standards at the UK National Physical Laboratory.

Hawkes, N P; Bennett, A; Cheema, S S; Horwood, N A; Jones, L N; Kolkowski, P; Roberts, N J; Taylor, G C; Thomas, D J (2007) Progress in providing neutron standards at the UK National Physical Laboratory. Nucl. Instrum. Methods Phys. Res. A, Accel. Spectrom. Detec. Assoc. Equip., 580. pp. 183-185.

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Abstract

The UK national standards laboratory, the National Physical Laboratory (NPL), provides an extensive range of facilities for measurements on neutron sources and neutron-sensitive devices. This paper describes recent improvements and extensions to the neutron standards. Correction factors used in source strength measurements have been improved, as have the scatter corrections used in monoenergetic and source-based irradiations. Characterisation of the thermal field facility has been improved by activation measurements. Experimental facilities developed recently include a system for measuring personal dosemeter responses at several energies simultaneously, and a neutron source tailored to simulate typical workplace fields.

Item Type: Article
Keywords: calibration, monoenergetic neutrons, thermal neutrons, simulated workplace fields, radionuclide neutron sources
Subjects: Ionising Radiation
Ionising Radiation > Neutron Metrology
Last Modified: 02 Feb 2018 13:15
URI: http://eprintspublications.npl.co.uk/id/eprint/3959

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