Moussous O, Khoudri S, Benguerba M
Département de Physique Médicale, Centre de Recherche Nucléaire d'Alger, 2 Boulevard Frantz Fanon, BP 399 Alger-Gare, Algeria.
Australas Phys Eng Sci Med. 2011 Dec;34(4):523-8. doi: 10.1007/s13246-011-0093-1. Epub 2011 Aug 18.
The dosimetric features of the Fricke dosimeter in clinical linear accelerator beams are considered. Experimental data were obtained using various nominal energies 6 and 18 MV, 12 and 15 MeV, including the (60)Co γ-ray beam. The calibration of the dosimeters was performed using the ionization chamber as a reference dosimeter. Some general characteristics of Fricke dosimeter such as energy dependence, optical density (OD)-dose relationship, reproducibility, accuracy, dose rate dependence were analyzed. The Fricke solution shows linearity in OD-dose relationship, energy independence and a good reproducibility over the energy range investigated. The Fricke dosimeter was found to be suitable for carrying out absorbed dose to water measurements in the calibration of high energy electron and photon beams.
研究了弗里克剂量计在临床直线加速器射束中的剂量学特征。使用6和18兆电子伏特、12和15兆电子伏特等各种标称能量获得了实验数据，包括（60）钴γ射线束。使用电离室作为参考剂量计对剂量计进行校准。分析了弗里克剂量计的一些一般特性，如能量依赖性、光密度（OD）-剂量关系、重复性、准确性、剂量率依赖性。弗里克溶液在OD-剂量关系中呈线性，在所研究的能量范围内能量不相关且重复性良好。发现弗里克剂量计适用于在高能电子束和光子束校准中进行水吸收剂量测量。
