DAUVERGNE , D.

Imaging is critical to each step of precision radiation therapy, i.e. planning, setup, delivery and assessment of response. Hadrontherapy can be considered to deliver more precise dose distribution that may better spare normal tissues from intermediate low doses of radiation. In addition, hadrontherapy using high linear energy transfer ions may...

For the purpose of detecting deviations from the prescribed treatment during particle therapy, the integrals of uncollimated prompt gamma-ray timing distributions are investigated. The intention is to provide information, with a simple and cost-effective setup, independent from monitoring devices of the beamline. Measurements have been...

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...

Ce travail vise à démontrer les capacités d'un nouveau type de détecteur de particules chargées, bénéficiant des progrès récents en intégration microélectronique 3D, pour des applications médicales avancées telles que l'hadronthérapie (ex. réduction des incertitudes dans la fluence pour délivrer la bonne dose, étiquetage précis d'un temps...

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A collimated gamma camera consisting of a multi-parallel slit collimator and an absorber has been proposed to be coupled with a beam hodoscope for ion-range verification during hadrontherapy by means of Prompt Gamma (PG) detection. The beam hodoscope associated to this gamma camera provides information on the incident ion position and arrival...

Prompt secondary radiations such as gamma rays and protons can be used for ion-range monitoring during ion therapy either on an energy-slice basis or on a pencil-beam basis. We present a review of the ongoing activities in terms of detector developments, imaging, experimental and theoretical physics issues concerning the correlation between the...