Real-time proton beam range monitoring by means of prompt-gamma detection with a collimated camera.
Phys Med Biol
; 59(5): 1327-38, 2014 Mar 07.
Article
en En
| MEDLINE
| ID: mdl-24556873
ABSTRACT
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.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Radiometría
/
Radioterapia Asistida por Computador
/
Cámaras gamma
/
Radioterapia de Alta Energía
Tipo de estudio:
Diagnostic_studies
Idioma:
En
Año:
2014
Tipo del documento:
Article