Göttingen 2025 – wissenschaftliches Programm
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ST: Fachverband Strahlen- und Medizinphysik
ST 6: Medical Imaging and Treatment Monitoring
ST 6.3: Vortrag
Donnerstag, 3. April 2025, 11:30–11:45, ZHG003
Monitoring of beam shape and position with an HV-CMOS detector matrix in ion beam therapy — •Baudry Bartels1, Alexander Dierlamm1,2, Ulrich Husemann1, Markus Klute1, Ivan Perić2, Bogdan Topko1, and Hui Zhang2 — 1Institute of Experimental Particle Physics (ETP), Karlsruhe Institute of Technology (KIT) — 2Institute for Data Processing and Electronics (IPE), Karlsruhe Institute of Technology (KIT)
Ion beam therapy has been proven to be an efficient treatment for cancer with less damage to healthy tissue compared to photon beam therapy.
A beam monitoring system is essential for ensuring a precise execution of the treatment plan. To increase the treatment precision, an online imaging of the target tissue during irradiation is beneficial. Magnetic resonance imaging (MRI) gives high tissue contrast without additional irradiation dose, and MRI-guided ion beam therapy is being established. This requires a magnetic field tolerant sensor system offering precise beam measurements and fast readout.
We are developing a beam monitor based on HV-CMOS detectors to meet the challenging requirements. A small prototype matrix has been built and commissioned. For user friendliness, a graphical user interface with implemented quick data analysis has been designed to provide the beam characteristics.
Keywords: ion beam therapy; beam monitoring; HV-CMOS