Hsu Shih-Ming, Yeh Shann-Horng, Lin Meei-Shiow, Chen Wei-Li
Department of Medical Radiation Technology, National Yang-Ming University, 155, Li-Nong Street Sec. 2, Pei-tou, Taipei 112, Taiwan, Republic of China.
Radiat Prot Dosimetry. 2006;119(1-4):327-31. doi: 10.1093/rpd/nci510. Epub 2006 May 18.
The radiophotoluminescent glass dosemeter (RPLGD) system is applicable for measurement of radiation dose of X rays and gamma rays by using radiophotoluminescent glass (silver-activated phosphate glass). When the radiophotoluminescent glass is exposed to ionizing radiation, stable luminescent centres are created. During pulsed ultraviolet laser excitation (337.1 nm) in the reader, the centres emit a radiation induced orange fluorescent light (600-700 nm). This phenomenon is called radiophotoluminescence. This study compared the RPLGD system with lithium fluoride (LiF) thermoluminescence dosimetry system and the results of the study revealed that the RPLGD had not only good basic characteristics for reproducibility of readout value, dose linearity, energy dependence and fading, but also infinite repeatable measurements and could be one of the most important radiation dose measurement instruments.
放射性光致发光玻璃剂量计(RPLGD)系统适用于通过使用放射性光致发光玻璃(银激活磷酸盐玻璃)来测量X射线和γ射线的辐射剂量。当放射性光致发光玻璃暴露于电离辐射时,会产生稳定的发光中心。在读取器中进行脉冲紫外激光激发(337.1 nm)期间,这些中心会发出辐射诱导的橙色荧光(600 - 700 nm)。这种现象称为放射性光致发光。本研究将RPLGD系统与氟化锂(LiF)热释光剂量测定系统进行了比较,研究结果表明,RPLGD不仅在读出值的再现性、剂量线性、能量依赖性和衰退方面具有良好的基本特性,而且具有无限次可重复测量的能力,可能成为最重要的辐射剂量测量仪器之一。