Würzburg 2018 – scientific programme
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ST: Fachverband Strahlen- und Medizinphysik
ST 2: Detector Physics
ST 2.7: Talk
Tuesday, March 20, 2018, 18:15–18:30, Phys-HS P
An Integrated System for 3D Energy Deposition Measurements in Hadron Therapy with the GEMPix Detector: First Results — •Johannes Leidner1,2, Fabrizio Murtas1,3, and Marco Silari1 — 1CERN, Geneva, Switzerland — 2RWTH Aachen University, Aachen, Germany — 3INFN-LNF, Frascati, Italy
The GEMPix detector is a gaseous detector with 2.8x2.8x0.3 cm3 sensitive volume and three Gas Electron Multiplier (GEM) layers read out by a 55 µm pitch pixelated ASIC with 512 x 512 pixels (four naked Timepix readout chips). An integrated system consisting of a water phantom, the GEMPix detector and a reference ionization chamber has been developed to measure the 3D energy deposition in hadron therapy. This presentation reports on first measurements with the new system performed at the Italian National Center of Oncological Hadrontherapy (CNAO).