Regensburg 2007 – scientific programme

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ST: Fachverband Strahlen- und Medizinphysik

ST 2: Medizinphysik-Poster

ST 2.1: Poster

Monday, March 26, 2007, 12:30–13:30, Poster D

Small Animal PET with MWPCs — •Holger Gottschlag¹, Henning Hünteler¹, Jan Pietschmann¹, Norbert Lang², Klaus Reygers¹, Klaus Schäfers², and Johannes Wessels¹ — ¹Institut für Kernphysik, University of Münster, Germany — ²Department of Nuclear Medicine, University Hospital of Münster, Germany

Positron emission tomography devices for small animals often use scintillation crystals to detect the γ-radiation of annihilated positrons.

These detectors provide good energy and timing resolution combined with a high efficiency and comfortable handling. However, crystal-based systems are quite expensive and provide only a modest position resolution.

Our approach is the use of more economic multi wire proportional chambers. These detectors offer sub millimeter spatial resolutions and can be built in almost arbitrary size. Although multi wire proportional chambers would not provide an energy resolution, the QUAD HIDAC by Oxford Positron Systems demonstrated the advantages of this technology in small-animal PET.

Based on the know-how of multi wire proportional chambers, that was obtained during the work on ALICE-TRD@LHC, we constructed a small animal PET scanner prototype. In this poster, the performance of our prototype will be discussed.

This project is part of SFB 656 MoBil - Molecular Cardiovascular Imaging - From Mouse to Man - at the University of Münster.