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Optimization of LSO/LuYAP phoswich detector for small animal PET by Jin Ho Jung; Yong Choi; Yong Hyun Chung; Olivier Devroede; Magalie Krieguer; Peter Bruyndonckx; Stefaan Tavernier is a Physics and Astronomy article available to read on EtoBox.

What is Optimization of LSO/LuYAP phoswich detector for small animal PET about?

LSO/LuYAP phoswich detectors for small animal PET were developed to measure the depth of interaction (DOI), and to improve the spatial resolution at the edge of the field of view (FOV). The aim of this study was to optimize the optical coupling conditions between the crystal and photomultiplier tube (PMT) to maximize the light-collection efficiency, and to develop a method for rejecting scatter events by applying an equal energy window in each crystal layer. The light yields of the phoswich detector were estimated by changing the refractive index of the optical coupling material using a DETECT simulation. The accuracy of the DOI measurement on the phoswich detector, using an optical coupling material with the optimal light yield, were evaluated experimentally and compared with the air condition. The energy window for the photopeak events cannot be applied properly because the light outputs of LSO and LuYAP are different. The LSO/LuYAP photopeaks need to be superposed in order to effectively discriminate the scattered events by applying an equal energy window. The photopeaks of the LSO and LuYAP can be superposed by inserting a reflecting material between the crystals. The optimal c

Who reads Optimization of LSO/LuYAP phoswich detector for small animal PET?

Author

Jin Ho Jung; Yong Choi; Yong Hyun Chung; Olivier Devroede; Magalie Krieguer; Peter Bruyndonckx; Stefaan Tavernier

Publisher

Elsevier Science; Elsevier ; Elsevier BV; ScienceOpen (ISSN 0168-9002)

Published

2007

Language

EN

Field

Physics and Astronomy (Physical Sciences)