Development, characterization and testing of a simplified bonner sphere system for rapid neutron field characterization

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Abstract

Personal neutron dosimetry requires workplace specific correction factors from detailed neutron field characterization. A Bonner sphere system (BSS) with a 3He proportional counter and a 3 inch an a 9 inch sphere was developed at SCK·CEN for rapid neutron field characterization. The BSS energy and angular responses were simulated with MCNPX and validated by irradiations with a thermal neutron beam at the Belgian Reactor 1 (BR1) and 252Cf and Am–Be sources at the SCK·CEN Laboratory for Nuclear Calibration (LNK). The BSS unfolding performance was tested using the FRUIT unfolding code for measurements of the scattered neutron field at the LNK. The unfolded spectra were in good agreement with MCNPX simulations.

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Original languageEnglish
Article numberncx224
JournalRadiation Protection Dosimtery
DOIs
Publication statusPublished - Aug 2018
Event2017 - NEUDOS - Neutron and ion dosimetry symposium - ICE congress center, Krakow, Poland
Duration: 13 May 201719 May 2017
Conference number: 13
https://neudos2017.ifj.edu.pl/

Keywords

  • characterization , testing, Bonner spheres, rapid neutron field

ID: 4086386