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Communication Dans Un Congrès Année : 2016

Gadolinium and terbium-covered bismuth-loaded plastic scintillators for thermal neutron detection

Résumé

This paper presents the concept of such compensation under the form of a two-bismuth loaded plastic scintillator system: a detection scintillator interacts with photon and fast neutron radiation and is covered with metal gadolinium as a thermal neutron absorber, while an identical compensation scintillator covered with terbium solely interacts with the photon and fast neutron part of incident radiation. The authors describe the simulation-based scaling of the sensors and insulation of measurement channels, the synthesis of bismuth-loaded plastic scintillators, the experimental energy calibration of these scintillators, the nonlinear smoothing of the raw counting signals and the setting of a hypothesis test to discriminate the signal generated by the radiative signature of thermal neutron captures in gadolinium from statistical fluctuations over the compensation of both independent channels.
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Dates et versions

hal-01641746 , version 1 (06-07-2023)

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  • HAL Id : hal-01641746 , version 1

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Jonathan Nicolas Dumazert, Romain Coulon, Mathieu Hamel, Stéphane Normand, Laurence Méchin, et al.. Gadolinium and terbium-covered bismuth-loaded plastic scintillators for thermal neutron detection. Symposium on Radiation Measurements and Applications (SORMA WEST 2016), May 2016, Berkeley, United States. ⟨hal-01641746⟩
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