SiPM-based compact time-of-flight detector for neutron spectrometry of fission samples

Autor: Samuel G. DeBruin, Roy Clarke, M.M. Bourne
Rok vydání: 2020
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 954:162000
ISSN: 0168-9002
DOI: 10.1016/j.nima.2019.03.055
Popis: Silicon photomultiplier (SiPM) technology, when combined with fast timing detectors and electronics, can be used to design a compact time-of-flight neutron spectrometer capable of identifying correlated neutron sources such as spontaneous fission from plutonium. Two EJ-200 organic plastic scintillators were coupled to separate C-series SiPM arrays designed by Endectra and manufactured by SensL. These assemblies were placed 30 centimeters away from each other with a 252Cf source next to one detector. The time-of-flight distribution was used to compute the measured neutron energy distribution, whose shape compared favorably to the expected neutron energy distribution for neutron energies greater than 2 MeV.
Databáze: OpenAIRE