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Article

Pulse-Height and 2-D Charge-Spread Single-Pixels Studies on a LuYAP:Ce Scintillation Array

1
Independent Researcher, 00100 Rome, Italy
2
ENEA—Italian National Agency for New Technologies, Energy and Sustainable Economic Development, TERIN-ICT, 00100 Rome, Italy
3
Department of Molecular Medicine, Sapienza University of Rome, 00100 Rome, Italy
4
Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, 00100 Rome, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Antonio Ereditato
Instruments 2021, 5(3), 26; https://doi.org/10.3390/instruments5030026
Received: 6 April 2021 / Revised: 25 July 2021 / Accepted: 25 July 2021 / Published: 30 July 2021
The present work deals with a 10 × 10 array of (Lu0.7Y0.3)AP:Ce 2 × 2 × 10 mm3 pixels, manufactured by Crytur (Cz), that has been utilized in a previous paper. The crystal-array has been coupled to an 8 × 8 anodes H10966 model Hamamatsu (Jp) Position-Sensitive Photo Multiplier Tube (PSPMT) connected to electronics for single events scintillation read-out. The response of such a detector has been studied under Co-57, or Ba-133, or Cs-137 gamma-ray emissions, as well as with Lu-176 self-activity only. The present work is aimed at characterizing the individual crystal-pixels’ single-event responses in terms of pulse-height and of spreads of the 2-D charge-distributions. In particular, the charge-spread characterization pointed out several defects in the crystal-array assembly, not detected by usual pulse-height studies. The diagnostic method based on charge-spread analysis seems also well suited for scintillation array characterizations for gamma-ray detectors studies, as well as for quality controls of such pixelated devices during the lifetime of systems in the field of radionuclide medical imaging (SPECT and PET). The method is also appropriate for other applications where gamma-ray spectroscopy is required, like nuclear physics, astrophysics, astroparticle physics, homeland security, and non-proliferation. View Full-Text
Keywords: gamma-ray detector; 2-D charge-distribution spreads; inter-crystal scatter; X-ray escape; SPECT; PET gamma-ray detector; 2-D charge-distribution spreads; inter-crystal scatter; X-ray escape; SPECT; PET
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MDPI and ACS Style

Scafè, R.; Puccini, M.; Pellegrini, R.; Pani, R. Pulse-Height and 2-D Charge-Spread Single-Pixels Studies on a LuYAP:Ce Scintillation Array. Instruments 2021, 5, 26. https://doi.org/10.3390/instruments5030026

AMA Style

Scafè R, Puccini M, Pellegrini R, Pani R. Pulse-Height and 2-D Charge-Spread Single-Pixels Studies on a LuYAP:Ce Scintillation Array. Instruments. 2021; 5(3):26. https://doi.org/10.3390/instruments5030026

Chicago/Turabian Style

Scafè, Raffaele, Marco Puccini, Rosanna Pellegrini, and Roberto Pani. 2021. "Pulse-Height and 2-D Charge-Spread Single-Pixels Studies on a LuYAP:Ce Scintillation Array" Instruments 5, no. 3: 26. https://doi.org/10.3390/instruments5030026

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