Journal Article

IMPULSE-2025-00001

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png LumaCam: a novel class of position-sensitive event mode particle detectors using scintillator screens

Wolfertz, A. (Corresponding author)MLZ* ; Gustschin, A.MLZ* ; Schulz, M.MLZ* ; Long, A. M. ; Khaplanov, A. ; Hirsh, T. Y. ; Nomerotski, A. ; Morgano, M. ; Tremsin, A. ; Mauri, G. ; Sykora, G. J. ; Losko, A.MLZ*

2024
Macmillan Publishers Limited, part of Springer Nature [London]

Please use a persistent id in citations: doi:10.1038/s41598-024-82095-2

Abstract: A new type of position-sensitive detectors is gaining attention in the neutron community. They are scintillator based detectors that detect the scintillation light on an individual photon basis via an image intensifier and a fast image sensor. Their readout operates in event mode i.e. it produces information about individual neutron interactions, reconstructed from the sensor data, thus enabling to achieve superior spatial and temporal resolutions compared to regular detectors. Although the development of current detectors is focused on neutrons, the concept is also applicable to the detection of other particles such as high-energy photons. This document provides a description on how these detectors are built, how they operate, and what their characteristics are. An example of a detector implementation based on a Timepix3 chip is described to illustrate the detector concept. This includes a detailed description of the algorithm that reconstructs the neutron interactions from the sensor data, one of the core components that sets it apart from established scintillator-based imaging detectors. Energy-resolved epithermal neutron radiography was performed at the ISIS EMMA beamline with this detector, illustrating some of the fundamental differences in the data that can be produced with the new type of detector compared to more established types of scintillator based neutron detectors. The term LumaCam is proposed to refer to this new class of position-sensitive event-mode detectors.

Keyword(s): Instrument and Method Development (1st) ; Instrument and Method Development (2nd)

Note: BMBF Grants for the research presented: 05K19WO2 and 05K22WO5

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Contributing Institute(s):

1. NECTAR (NECTAR)

Experiment(s):

1. NECTAR: Radiography and tomography using fission neutrons (SR10)
2. Measurement at external facility

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