Evaluation of Temporal Resolution for SEB Camera Based on TOFPET2 ASIC Targeting Particle Therapy Beam Imaging

Le résumé fourni par la source

Noninvasive monitoring of beam range is essential for improving the accuracy of particle therapy. In this study, we developed a secondary electron bremsstrahlung (SEB) camera using a segmented cerium-doped gadolinium aluminum gallium garnet (GAGG:Ce) scintillator crystal array coupled with the TOFPET2 ASIC, aiming to visualize therapeutic beams with high temporal resolution. The developed two-dimensional x-ray detector, combined with a pinhole collimator, was evaluated using carbon-ion beams at the Gunma University Heavy Ion Medical Center. Evaluation of temporal resolution was conducted using therapeutic carbon beams. The system demonstrated a time resolution sufficient to resolve the temporal structure of the beam on the order of 10 ms, and it was confirmed that measurements at a rate of at least 30 kcps are feasible. These results confirmedthe potential of the developed system for real-time beam monitoring in clinical particle therapy.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.