A new generation of scintillation detectors with identification of events undergoing multiple interactions for gamma-ray imaging and spectroscopy. (June 2022)

• Record Type: Journal Article
• Authors: Indovina, Luca; Scafè, Raffaele; Puccini, Marco; Pellegrini, Rosanna; Pani, Roberto
• Is Part Of: Applied radiation and isotopes. Volume 184(2022)
• Publication Date: 2022-06
• Subjects: Gamma-ray detector -- 2-D charge-distribution spreads -- Inter-crystal scatter -- X-ray escape -- SPECT -- PET; Radiology -- Periodicals; Radiation -- Industrial applications -- Periodicals; Nuclear chemistry -- Periodicals; Internet resource; Periodical; 660.298
• DOI: 10.1016/j.apradiso.2022.110189
• Languages: English
• ISSNs: 0969-8043

Abstract

Abstract: The present work deals with a scintillation detector made of a LuYAP:Ce array coupled to a position-sensitive photo-multiplier tube, whose structure is well suitable for SPECT and PET, but also in nuclear physics, astrophysics, astroparticle physics, homeland security, and non-proliferation. The response was investigated under Co-57, Ba-133, Cs-137 gamma-ray irradiation, and with Lu-176 self-activity. The investigation, based on the 2-D charge-profiles spread, provides means for identifying and rejecting multiple-interactions in the crystal-array, like Lu X-ray escape photons, and Compton-scattered ones.