Dokument-ID Dokumenttyp Verfasser/Autoren Herausgeber Haupttitel Abstract Auflage Verlagsort Verlag Erscheinungsjahr Seitenzahl Schriftenreihe Titel Schriftenreihe Bandzahl ISBN Quelle der Hochschulschrift Konferenzname Bemerkung Quelle:Titel Quelle:Jahrgang Quelle:Heftnummer Quelle:Erste Seite Quelle:Letzte Seite URN DOI Zugriffsart Link Abteilungen OPUS4-5083 Wissenschaftlicher Artikel Mosset, J.-B., ; Devroede, O., ; Krieguer, M., ; Rey, M., ; Vieira, J.-M., ; Jung, J. H., ; Kuntner, C., ; Streun, M., ; Ziemons, Karl, k.ziemons@fh-aachen.de; Auffray, E., ; Sempere-Roldan, P., ; Lecoq, P., ; Bruyndonckx, P., ; Loude, J.-F., ; Tavernier, S., ; Morcel, C., Development of an optimized LSO/LuYAP phoswich detector head for the Lausanne ClearPET demonstrator This paper describes the LSO/LuYAP phoswich detector head developed for the ClearPET small animal PET scanner demonstrator that is under construction in Lausanne within the Crystal Clear Collaboration. The detector head consists of a dual layer of 8×8 LSO and LuYAP crystal arrays coupled to a multi-anode photomultiplier tube (Hamamatsu R7600-M64). Equalistion of the LSO/LuYAP light collection is obtained through partial attenuation of the LSO scintillation light using a thin aluminum deposit of 20-35 nm on LSO and appropriate temperature regulation of the phoswich head between 30°C to 60°C. At 511keV, typical FWHM energy resolutions of the pixels of a phoswich head amounts to (28±2)% for LSO and (25±2)% for LuYAP. The LSO versus LuYAP crystal identification efficiency is better than 98%. Six detector modules have been mounted on a rotating gantry. Axial and tangential spatial resolutions were measured up to 4 cm from the scanner axis and compared to Monte Carlo simulations using GATE. FWHM spatial resolution ranges from 1.3 mm on axis to 2.6 mm at 4 cm from the axis. 2006 4 IEEE Transactions on Nuclear Science 53 0018-9499 1 25 29 campus http://dx.doi.org/10.1109/TNS.2005.862958 Fachbereich Medizintechnik und Technomathematik