DOI PET detectors with scintillation crystals cut as triangular prisms
For depth of interaction (DOI) encoding on a PET detector, we propose to use scintillation crystals, each cut as a triangular prism. Demonstration of the method for the 3-layer and 2-layer DOI encodings was carried out with two shapes of Lu 2x Gd 2(1−x) SiO 5 (LGSO) crystals: an equilateral triangle...
Saved in:
Published in | 2008 IEEE Nuclear Science Symposium Conference Record pp. 3942 - 3945 |
---|---|
Main Authors | , , , , , , , , , |
Format | Conference Proceeding |
Language | English |
Published |
IEEE
01.10.2008
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | For depth of interaction (DOI) encoding on a PET detector, we propose to use scintillation crystals, each cut as a triangular prism. Demonstration of the method for the 3-layer and 2-layer DOI encodings was carried out with two shapes of Lu 2x Gd 2(1−x) SiO 5 (LGSO) crystals: an equilateral triangle of 3.0 mm length per side and a isosceles right triangle of 3.0 mm length for two sides in their horizontal cross section. The height of each crystal prism was 10.0 mm. The former and latter crystal shapes were arranged in 3-layer and 2-layer DOI array, respectively, and their performances were evaluated by coupling the array to a position sensitive photomultiplier tube (PS-PMT). By Anger-type calculations of the PS-PMT signals, we obtained 2-dimensional position histograms in which responses of the crystals in all layers were represented. Both DOI detectors showed promising results for crystal identification and energy performances. |
---|---|
ISBN: | 1424427142 9781424427147 |
ISSN: | 1082-3654 2577-0829 |
DOI: | 10.1109/NSSMIC.2008.4774146 |