Timar-Gabor A, Ivascu C, Vasiliniuc S, Daraban L, Ardelean I, Cosma C, Cozar O
Faculty of Environmental Science, Babes-Bolyai University, Fantanele 30, Cluj-Napoca, Romania.
Appl Radiat Isot. 2011 May;69(5):780-4. doi: 10.1016/j.apradiso.2011.01.015. Epub 2011 Jan 19.
Thermoluminescence and optically stimulated luminescence properties of phosphate glasses doped with BaO and Li(2)O at various concentrations were studied. Lithium-doped glasses show a broad TL peak in the 200-300°C region with poor dosimetric characteristics. Barium-doped glasses feature at least two TL peaks, approximately at 200 and 400°C, which were attributed to Ba(2+) ions. They also produce a fast-decaying OSL signal correlated with the lower-temperature TL peak. Responses of both TL emissions to radiation doses up to 100 Gy are linear (R² >0.99). Due to its encouraging characteristics such as acceptable batch homogeneity, good measurement reproducibility and weak signal fading, the P₂O₅-xBaO glass can be considered as a candidate material for dosimetry in the high-dose range (>10 Gy).
研究了不同浓度掺杂BaO和Li₂O的磷酸盐玻璃的热释光和光激励发光特性。掺锂玻璃在200 - 300°C区域呈现出一个宽的热释光峰，剂量学特性较差。掺钡玻璃至少有两个热释光峰，分别约在200°C和400°C，这归因于Ba²⁺离子。它们还产生与低温热释光峰相关的快速衰减的光激励发光信号。两种热释光发射对高达100 Gy的辐射剂量的响应都是线性的（R²>0.99）。由于其具有令人鼓舞的特性，如可接受的批次均匀性、良好的测量重复性和微弱的信号衰减，P₂O₅ - xBaO玻璃可被视为高剂量范围（>10 Gy）剂量测定的候选材料。
