Real-time proton beam range monitoring by means of prompt-gamma detection with a collimated camera - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Physics in Medicine and Biology Année : 2014

Real-time proton beam range monitoring by means of prompt-gamma detection with a collimated camera

Résumé

Prompt-gamma profile was measured at WPE-Essen using 160 MeV protons impinging a movable PMMA target. A single collimated detector was used with time-of-flight (TOF) to reduce the background due to neutrons. The target entrance rise and the Bragg peak falloff retrieval precision was determined as a function of incident proton number by a fitting procedure using independent data sets. Assuming improved sensitivity of this camera design by using a greater number of detectors, retrieval precisions of 1 to 2 mm (rms) are expected for a clinical pencil beam. TOF improves the contrast-to-noise ratio and the performance of the method significantly.
Fichier non déposé

Dates et versions

hal-00967209 , version 1 (28-03-2014)

Identifiants

Citer

F. Roellinghoff, A. Benilov, D. Dauvergne, G. Dedes, N. Freud, et al.. Real-time proton beam range monitoring by means of prompt-gamma detection with a collimated camera. Physics in Medicine and Biology, 2014, 59 (5), pp.1327-1338. ⟨10.1088/0031-9155/59/5/1327⟩. ⟨hal-00967209⟩
105 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More