Radiological properties of plastics and TLD materials its application in radiation dosimetry

9th International Conference on 3D Radiation Dosimetry

James Jabaseelan Samuel, E.^1 ; Srinivasan, K.^1 ; Poopathi, V.^2

Department of Photonics, Nuclear and Medical Physics Division, SAS, VIT University, Vellore, India^1

Department of Medical Physics, Apollo Gleneagles Hospitals, Kolkata, India^2

关键词: Effective atomic number;    ITS applications;    Lithium borates;    Mass absorption coefficient;    Mass attenuation coefficients;    Number of electrons;    Photon energy range;    Plastic materials;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/847/1/012064/pdf
DOI  :  10.1088/1742-6596/847/1/012064

来源: IOP

【 摘 要 】

In the current study, we evaluated the tissue equivalency of nine different commonly used thermoluminescence compounds and six plastic materials over the photon energy range of 15 KeV to 20 MeV. Our result confirmed that the ratio of number of electrons per gram, electron density of the entire TLD compounds and plastic materials to ICRU-44 soft tissue was lesser than unity, except in the case of polypropylene plastics. The effective atomic number ratio of all the plastic materials was also en/ρ) was calculated and the results are discussed in this paper.