A neutron beam monitor based on silicon carbide semiconductor coated with 6LiF converter

Jiang, Yong; Wu, Jian; Zheng, Lei; Fan, Xiaoqiang; Jiarong, Lei

doi:10.1016/j.nima.2018.12.014

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“…Key requirements for the thin neutron detector system front-end are listed in Table I. Silicon carbide is a promising semiconductor material for use in high-temperature and high-radiation environments, [1]- [3] and is increasingly being used both for radiation detection [4]- [15] and for integrated electronics [16], [17].…”

Section: Introductionmentioning

confidence: 99%

Development of an Optimized Converter Layer for a Silicon-Carbide-Based Neutron Sensor for the Detection of Fissionable Materials

Monk

Platt

Anderson

et al. 2019

2019 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)

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We describe the early stage development of a miniature silicon carbide neutron sensor, for applications including robotic monitoring at the Fukushima Daiichi nuclear power plant, specifically, within the primary containment vessel for fuel debris detection and retrieval. Monte Carlo simulations using MCNP 6.2 and Geant4 10.05.01 are used to investigate and optimize converter layers for thermal neutron detection. Performance of a 10 B 4 C:SiC detector system is investigated in detail and a neutron detection efficiency ∼4% is predicted, with a gamma discrimination ratio of the order of 10 5 .

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Section: Introductionmentioning

confidence: 99%