Compton suppressed scintillation spectrometer based on a cluster of 9$\times$CeBr$_{3}$-NaI(Tl) phoswich detectors

TL;DR

This paper presents a Compton suppressed spectrometer built from a cluster of 9 CeBr₃-NaI(Tl) phoswich detectors, demonstrating its effectiveness in gamma and neutron radiation measurements and suppression of Compton background.

Contribution

It introduces a new detector configuration with a cluster of 9 phoswich detectors and evaluates its performance in gamma and neutron detection.

Findings

Achieved suppression of the Compton component in gamma spectra.

Determined neutron detection efficiency across various energies.

Quantified the suppression factor of the spectrometer.

Abstract

Measurements of the characteristics of an Compton suppressed spectrometer consisting of 9$\times$CeBr$_{3}$-NaI(Tl) phoswich detectors surrounded by four CsI(Tl) scintillation detectors intended for suppressing the Compton component of the spectrum have been carried out. Measurements were performed using gamma and neutron radiation sources. Key parameters of the spectrometer have been determined: the suppression factor of the Compton part of the $\gamma$-spectrum, as well as the dependencies of the neutron detection efficiency on their energy at various detection threshold values.