A compact detector system for simultaneous measurements of the light yield non-linearity and timing properties of scintillators - Archive ouverte HAL Access content directly
Journal Articles Scientific Reports Year : 2024

A compact detector system for simultaneous measurements of the light yield non-linearity and timing properties of scintillators

Abstract

This work presents an outline of a detection system that employs the Compton spectrometer method to assess the non-linearity of scintillator light yield. A novel approach is introduced, leading to more accurate measurements through the separate determination of the intrinsic light output parameters and the non-linearity of the scintillators. Key features of this system include the use of a portable scintillation detector with three photomultiplier tubes for precise measurement of the average number of detected photoelectrons and the incorporation of recent advancements in correction techniques for accidental coincidences. The integration of digital acquisition, offline data analysis, and geometric adaptation reduces the time required to perform a measurement. The developed detector can simultaneously measure different timing properties, as well as the relative intensities following ionization excitation in a scintillator. The system's performance is demonstrated through measurements of the light yield dependence on the deposited energy for commercially available liquid, plastic, and inorganic scintillators. Such instrumentation serves as a valuable tool in the development of novel scintillating materials, including liquid or solid organic scintillators, inorganic scintillators, and composite scintillators for electron detection, in addition to traditional X-ray or γ-ray detection.
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Dates and versions

hal-04291310 , version 1 (06-12-2023)
hal-04291310 , version 2 (19-04-2024)

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Benoit Sabot, Chavdar Dutsov, Philippe Cassette, Krasimir Mitev, Matthieu Hamel, et al.. A compact detector system for simultaneous measurements of the light yield non-linearity and timing properties of scintillators. Scientific Reports, 2024, pp.6960. ⟨10.1038/s41598-024-57186-9⟩. ⟨hal-04291310v2⟩
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