Measuring output factors and beam profiles formed by multileaf collimators using Fricke gel dosimeter.
The accuracy and precision are necessary factors in radiotherapy, especially for measurements involving output factors and beam profiles; in this case multileaf collimators (MLCs) and dosimeter systems are not employed to obtain an adequate absorbed dose. In this work, output factors and beam profiles using multileaf collimators were obtained through the Fricke Xylenol Gel (FXG) dosimeter irradiated with 6 MV photon beams. From the results, FXG dosimetry demonstrated to be an adequate dosimetric tool for radiotherapy applications using MLC.
Instituto Federal de Educação, Ciência e Tecnologia de Goiás (IFG), Inhumas, GO, Brazil; Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN), São Paulo, SP, Brazil. Electronic address: lucas@ifg.edu.br.
Lucas
L
Nonato de Oliveira
Departamento de Física, FFCLRP - Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil.
Adelaide
A
de Almeida
Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN), São Paulo, SP, Brazil.
Linda V E
LV
Caldas
D005782:Gels; D017785:Photons / Q000627:therapeutic use; D011874:Radiometry / Q000295:instrumentation / Q000379:methods*
D005782:Gels
Fricke xylenol gel; Multileaf collimator; Small fields