Münster 2017 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 27: Poster
HK 27.57: Poster
Dienstag, 28. März 2017, 16:45–18:45, F Foyer
Status of the scatterer component of a Compton camera for ion beam range verification in proton therapy — •S. Liprandi1, S. Aldawood1,2, V. Beck1, M. Mayerhofer1,3, T. Binder1, I. V.-Lozano1, J. Bortfeldt1, L. Maier4, R. Lutter1, R. Gernhäuser4, G. Pausch5, W. Enghardt5,6, F. Fiedler6, G. Dedes1, K. Parodi1, and P. G. Thirolf1 — 1LMU München, Germany — 2King Saud Univ., Riyadh, Saudi Arabia — 3Univ. Hamburg, Germany — 4TU München, Germany — 5OncoRay and TU Dresden, Germany — 6Helmholtz-Zentrum Dresden-Rossendorf, Germany
At LMU 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 acting as scatterers and an absorber formed by a LaBr3(Ce) scintillator. Both detectors have been characterized off- and online at different accelerator facilities, showing good agreement with MC simulations. Here, the present readout for the DSSSDs (based on the GASSIPLEX ASIC chip) revealed several limitations that urge for an improved upgrade. This poster will focus on the status of the scatterer component and its readout: a characterization of the detectors and specifications for their readout will be shown. Different readout options will be presented, together with first tests performed using a system based on the AGET ASIC chip.
This work was supported by the DFG Cluster of Excellence Munich Centre for Advanced Photonics (MAP) and KSU, Riyadh, Saudi Arabia.