https://doi.org/10.1051/epjconf/202533303005
Improvement of a plastic scintillator with different coatings for gamma-ray detection
1 Instituto de Física, Universidad Nacional Autónoma de México, Apartado Postal 20-364, 01000 Ciudad de México, México.
2 Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad de México, México.
* e-mail: dmarin@fisica.unam.mx
Published online: 1 August 2025
Identical cubic plastic scintillator detectors were tested using different coating materials in order to investigate their response function and efficiency, additionally two light guides were also coated evaluating their performance in order to find the best combination for a detection array. The array is composed by a plastic scintillator coupled to a light guide and a photomultiplier tube (PMT), the output signal is processed by a Data Aquisition System (DAQ). Operational voltage for the PMT was found and detectors were tested measuring 137Cs certified gamma-ray point source. Spectra were analyzed and optimal coating for light guide and detector combination was determined based on the array’s efficiency.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
