CIFICEN 24414
CENTRO DE INVESTIGACIONES EN FISICA E INGENIERIA DEL CENTRO DE LA PROVINCIA DE BUENOS AIRES
Unidad Ejecutora - UE
artículos
Título:
Characterization of YVO 4 :Eu 3+ scintillator as detector for Fiber Optic Dosimetry
Autor/es:
MOLINA, P.; MARTÍNEZ, N.; CRAVERO, W.; MARCAZZÓ, J.; SANTIAGO, M.; RUCCI, A.
Revista:
RADIATION MEASUREMENTS
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2017 p. 650 - 656
ISSN:
1350-4487
Resumen:
Fiberoptic dosimetry (FOD) is an experimental technique suitable for in-vivo, real timedosimetry in radiotherapy treatments. In a previous work it was found that YVO4:Eu is ascintillator suitable to be employed as scintillator for FOD in pulsed MV photon beams.YVO4:Eu-based FOD probes have shown several positive characteristics: temperatureindependence; no previous irradiation needed; good spatial resolution. In this paper othersdosimetric characteristics have been investigated for the first time. Suitability for real timedosimetry has been determined by simultaneous measurement with a ionization chamber; offaxis profile have been obtained in order to assess spatial resolution of the FOD system whenused in fields having a size of 3x3cm2 and 1x1cm2; angular dependence has been studied forprobes with cylindrical and quasi-spherical geometry showing the influence of the detectorshape on it isotropy. Additionally, PDD curves resulting from Monte Carlo simulations havebeen successfully compared to experimental curves.
