Heidelberg 2022 – wissenschaftliches Programm
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ST: Fachverband Strahlen- und Medizinphysik
ST 1: Radiation therapy I
ST 1.5: Vortrag
Montag, 21. März 2022, 15:00–15:15, ST-H4
Use of PET Readout Electronics for a Scintillating Fiber-Based Compton Camera — •Sara Müller1,3, Ronja Hetzel1,3, Mareike Profe1, Achim Stahl1, Aleksandra Wronska2, Ming Liang Wong2, Magdalena Kołodziej2, Katarzyna Rusiecka2, David Schug3, Björn Weißler3, and Volkmar Schulz1,3 — 1RWTH Aachen University - Physics Institute III B, Aachen, Germany — 2M. Smoluchowski Institute of Physics, Jagiellonian University Kraków, Poland — 3RWTH Aachen University, Physics of Molecular Imaging Systems, Aachen, Germany
A powerful tool in cancer treatment is hadron therapy. Its precision can be optimised by online-monitoring the Bragg peak position by using prompt gamma radiation emitted in the process. A Compton camera is a promising setup for this task as it provides the possibility to reconstruct the shape and the location of the deposited dose.
The SiFi-CC (SiPM and scintillating Fiber-based Compton Camera) is developed by researchers of the RWTH Aachen University, the Jagiellonian University in Kraków and the University of Lübeck. The two parts of the SiFi-CC, the scatterer and the absorber, both consist of closely packed LYSO:Ce fibres and are read out by digital SiPMs. The SiPMs are arranged in a sensor tile which was originally developed for PET systems and which consists of 36 Digital Photon Counters containing four readout channels each. Thus, the light produced in the scintillating fibers is spread over several SiPMs. A small-scale prototype of the camera has been assembled and was tested under laboratory conditions. First results of these measurements will be presented.