Radiation Protection Dosimetry Advance Access originally published online on May 22, 2007
Radiation Protection Dosimetry 2007 126(1-4):310-313; doi:10.1093/rpd/ncm064
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Sensitivity study of CR39 track detector in an extended range Bonner sphere spectrometer
1 Dipartimento di Ingegneria Nucleare, Politecnico di Milano, via Ponzio 34/3, 20133 Milano, Italy
2 CERN 1211 Geneva 23, Switzerland
* Corresponding author: marco.caresana{at}polimi.it
Bonner sphere spectrometers (BSS) are being used widely in neutron spectrometry since 1960. The response to neutrons of these moderating detectors spans over a broad energy range. This work discusses the measurement of the sensitivity of an extended range BSS hosting a CR39 nuclear track detector coupled to a boron converter. Two kinds of boron converters were tested, the first made by natural boron and a second one enriched in 10B. The BSS response functions were calculated with Monte Carlo simulation using the MCNPX 2.4.0. and the FLUKA codes.