Speaker
Description
Ion computed tomography (iCT) is an imaging modality for the direct measurement of the relative stopping power (RSP) distribution inside the patient. While iCT could provide more accurate RSP maps compared to conventional x-ray CT, current systems still struggle to meet the clinical requirements, particularly keeping the image acquisition time under a few minutes. One solution is to build a so-called Time-of-Flight iCT (TOF-iCT) system based Low Gain Avalanche Diodes (LGADs), which are ultra fast silicon detectors with high spatial and temporal resolution. In this contribution we present a TOF-iCT system based on single-sided LGAD strip sensors (FBK) and a custom FPGA-based readout system developed at GSI. First imaging tests at MedAustron including a TOG-proton radiography of an aluminium stair phantom and a TOF-helium radiography of a mouse phantom are shown. We conclude with our roadmap towards a clincially viable LGAD-based TOF-iCT system.
