Heidelberg 2022 – scientific programme

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ST: Fachverband Strahlen- und Medizinphysik

ST 6: Detectors and Applications I

ST 6.3: Talk

Wednesday, March 23, 2022, 11:30–11:45, ST-H4

Real-time analysis for a scintillating fiber-based beam profile monitor for charged particle beams — •Liqing Qin, Qian Yang, and Blake Leverington — Physikalisches Institut, Heidelberg, Germany

A lighter, faster and more precise real-time beam profile monitor (BPM) is desired by the Heidelberg Ion-beam Therapy Center (HIT) to upgrade their original Multiwire chambers. A Scintillating Fibre based BPM will offer real-time information of the beam conditions, including position and width, with a readout rate of 10 kHz using photodiode arrays with a channel size of 0.8mm. Currently the data from the BPM is saved offline for processing and analysis, but the goal is to reconstruct the beam profile in real-time on board the device. A reconstruction algorithm has been designed and the goal is to implement this within the FPGA of the readout electrons. The calibration of the detector as well as the beam reconstruction steps will be presented, describing how radiation damage effects to the fibres will be managed.