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首页> 外文期刊>Australasian physical & engineering sciences in medicine >Characterization of a Fricke dosimeter at high energy photon and electron beams used in radiotherapy
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Characterization of a Fricke dosimeter at high energy photon and electron beams used in radiotherapy

机译:放射疗法中使用的高能光子和电子束的Fricke剂量计的表征

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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 y-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.
机译:考虑了Fricke剂量计在临床线性加速器射线束中的剂量特征。使用各种标称能量6和18 MV,12和15 MeV(包括〜(60)Co y射线束)获得了实验数据。使用电离室作为参考剂量计进行剂量计的校准。分析了Fricke剂量计的一些一般特征,例如能量依赖性,光密度(OD)-剂量关系,重现性,准确性,剂量率依赖性。 Fricke解决方案在研究的能量范围内显示出OD剂量关系的线性,能量独立性和良好的可重复性。发现Fricke剂量计适用于在高能电子和光子束的校准中对水进行吸收剂量测量。

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