# SiPM-based neutron Anger camera with auto-calibration capabilities

## TL;DR

This paper introduces a neutron Anger camera utilizing SiPMs and a lithium-6 loaded scintillator, featuring auto-calibration through flood irradiation data and achieving high spatial and energy resolution.

## Contribution

It presents a novel auto-calibration method for SiPM-based neutron cameras using an unsupervised iterative approach from calibration data.

## Key findings

- Spatial resolution better than 0.6 mm FWHM at 2.5 A neutron beam
- Energy resolution of 11% at the neutron peak
- Useful field of view of 28 x 28 mm2

## Abstract

We present characterization results of a neutron Anger camera based on a lithium-6 loaded cerium activated silicate glass scintillator (33.3 x 33.3 x 1 mm3) and an array of 64 silicon photomultipliers. Reconstruction of the scintillation events is performed with a statistical method, implemented on a graphics processing unit (GPU). We demonstrate that the light response model of the detector can be obtained from flood irradiation calibration data using an unsupervised iterative procedure. The useful field of view is 28 x 28 mm2. The spatial resolution measured at 2.5 A neutron beam is better than 0.6 mm FWHM and the energy resolution at the neutron peak is 11%.

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Source: https://tomesphere.com/paper/1902.04513