A Compton camera prototype for prompt gamma medical imaging
P. G. Thirolf (Ludwig Maximilians University)
S Aldawood (Ludwig Maximilians University, King Saud University)
M. Böhmer (Technische Universität München)
J. Bortfeldt (Ludwig Maximilians University)
I Castelhano (Ludwig Maximilians University, Universidade de Lisboa)
G. Dedes (Ludwig Maximilians University)
F. Fiedler (Helmholtz Zentrum Dresden Rossendorf)
R. Gernhäuser (Technische Universität München)
H.G. van der Kolff (TU Delft - ImPhys/Practicum support, Ludwig Maximilians University)
D. Schaart (TU Delft - RST/Applied Radiation & Isotopes)
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Abstract
Compton camera prototype for a position-sensitive detection of prompt γ rays from proton-induced nuclear reactions is being developed in Garching. The detector system allows to track the Comptonscattered electrons. The camera consists of a monolithic LaBr3:Ce scintillation absorber crystal, read out by a multi-anode PMT, preceded by a stacked array of 6 double-sided silicon strip detectors acting as scatterers. The LaBr3:Ce crystal has been characterized with radioactive sources. Online commissioning measurements were performed with a pulsed deuteron beam at the Garching Tandem accelerator and with a clinical proton beam at the OncoRay facility in Dresden. The determination of the interaction point of the photons in the monolithic crystal was investigated.