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Luminescent properties of fluoride phosphate glass for radiation dosimetry

机译:用于辐射剂量测定的氟化磷酸盐玻璃的发光性质

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摘要

Fluoride phosphate glass has the ability to detect ionizing radiation, and thus can be utilized in various forms for the purposes of dosimetry. To further understand the potential of this material, the luminescence properties have been studied using techniques such as thermoluminescence (TL)and optically stimulated luminescence (OSL). Short luminescent lifetimes and shallow electron trap depths were measured. At the main TL peak at 60 ºC, the activation energy was calculated to be 0.5 eV with a frequency factor of 1.9x106 s-1 and lifetime of 2.1x102 s at 293 K. Fast timing results yield an OSL rise-time of 12.2 μs. Results indicate the material studied is well suited for monitoring applications where the time between radiation exposure and OSL read-out is in the order of several minutes.
机译:氟化磷酸盐玻璃具有检测电离辐射的能力,因此可以用于剂量测定的各种形式。为了进一步了解这种材料的潜力,已经使用热发光(TL)和光激发发光(OSL)等技术研究了发光特性。测量了短的发光寿命和浅的电子陷阱深度。在60ºC的主TL峰值处,计算出的活化能为0.5 eV,频率因子为1.9x106 s-1,在293 K下的寿命为2.1x102 s。快速定时可产生12.2μs的OSL上升时间。结果表明,所研究的材料非常适合监控辐射暴露和OSL读数之间的时间大约为几分钟的应用。

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