Absorbed Energy Monitoring during Hadrontherapy via Prompt Gamma Detection

J. Krimmer (1) , L. Balleyguier (1) , D. Dauvergne (2, 1) , M. Fontana (1) , N. Freud (3) , J. Hérault (4) , Charbel Koumeir (5) , J. M. Létang (6, 7) , H. Mathez (1) , M. Pinto (1) , E. Testa (1) , Y. Zoccarato (1)

1 IPNL - Institut de Physique Nucléaire de Lyon
2 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
3 Imagerie Tomographique et Radiothérapie
4 Unité de Radiothérapie
5 SUBATECH - Laboratoire SUBATECH Nantes
6 Centre Léon Bérard [Lyon]
7 CREATIS - Centre de Recherche en Acquisition et Traitement de l'Image pour la Santé

An independent monitoring system aiming for the detection of deviations from the prescribed treatment in hadrontherapy is presented. The system is based on prompt gammaray detection via scintillation detectors and the use of time-offlight information. Test measurements at cyclotrons show the influence of degraders used in passive beam delivery systems. A dedicated data acquisition card has been developed which is suitable to provide timing and energy information from scintillation detectors at counting rates compatible with clinical beam intensities.

Domaines: Physique Médicale [physics.med-ph]; Instrumentations et Détecteurs [physics.ins-det]; Cancer

J. Krimmer, L. Balleyguier, D. Dauvergne, M. Fontana, N. Freud, et al.. Absorbed Energy Monitoring during Hadrontherapy via Prompt Gamma Detection. IEEE Nuclear Science Symposium & Medical Imaging Conference (2016 IEEE NSS/MIC), Oct 2016, Strasbourg, France. pp.1-2, ⟨10.1109/NSSMIC.2016.8069621⟩. ⟨hal-01457973⟩