# Characterisation of a CeBr$_3$(LB) detector for space application

## TL;DR

This paper characterizes a CeBr3 scintillator detector optimized for space-based gamma-ray detection in the 20 keV to 3 MeV range, suitable for CubeSat applications targeting terrestrial gamma-ray flashes.

## Contribution

It presents the performance evaluation of a low background CeBr3 detector tailored for space gamma-ray detection in a CubeSat payload.

## Key findings

- Detector effectively detects gamma rays in 20 keV–3 MeV range.
- Optimized for low background noise in space environment.
- Suitable for gamma-ray flash studies from terrestrial sources.

## Abstract

We describe the performance of a $\mathrm{23\times 23\times30 ~mm^3}$ low background cerium bromide, CeBr$_3$(LB), scintillator crystal coupled to a Hamamatsu R11265U-200 photomultiplier. This detector will be the building block for a gamma-ray detector array designed to be the payload for a CubeSat to be launched in 2020. The aim of the mission is to study flashes of gamma rays of terrestrial origin. The design of the detector has been tuned for the detection of gamma rays in the 20 keV$-$3 MeV energy range.