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Darmstadt 2016 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 53: Instrumentation XIV

HK 53.6: Talk

Thursday, March 17, 2016, 15:45–16:00, S1/01 A4

Development of a Compton camera prototype for prompt gamma medical imaging — •S. Liprandi1, S. Aldawood1,2, A. Miani1,3, T. Marinšek1, I. Valencia1, C. Lang1, J. Bortfeldt1, L. Maier4, R. Lutter1, R. Gernhäuser4, D.R. Schaart5, G. Pausch6,7, F. Fiedler7, W. Enghardt6,7, G. Dedes1, K. Parodi1, and P.G. Thirolf11LMU München, Germany — 2King Saud University, Riyadh, Saudi Arabia — 3Universitá degli Studi di Milano, Italia — 4TU München, Germany — 5Delft University of Technology, The Netherlands — 6OncoRay and TU Dresden, Germany — 7Helmholtz-Zentrum Dresden-Rossendorf, Germany

At LMU in Garching we are developing a Compton camera, designed to detect prompt γ-rays induced by nuclear reactions, during the irradiation of tissue in particle therapy. Our prototype consists of a stack of double-sided silicon strip detectors (50 x 50 mm2, 0.5 mm thick, 128 strips/side, Gassiplex ASIC readout) acting as scatterers and an absorber formed by a LaBr3(Ce) scintillator (50 x 50 x 30 mm3, 256-fold multianode PMT readout). The detectors have been characterized in the laboratory and recently also online with a therapeutic proton beam at the University Proton Therapy Dresden (UPTD): we used 100, 160 and 225 MeV proton beams, irradiating water and PMMA targets. The offline and online characterization of the camera and its components will be presented.
This work was supported by the DFG Cluster of Excellence Munich Centre for Advanced Photonics (MAP) and KSU, Saudi Arabia.

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