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首页> 外文会议>Advanced Materials Conference >Dose Reassessment by using PTTL Method in Ge-doped SiO2 Optical Fiber Thermoluminescence Dosimetry
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Dose Reassessment by using PTTL Method in Ge-doped SiO2 Optical Fiber Thermoluminescence Dosimetry

机译：通过使用PTTL方法在Ge-掺杂SiO2光纤热致发光剂量测定中进行重新评估

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In this paper, the characteristics of PTTL after irradiation with 60 Co gamma rays as a function UV light exposure wavelength, gamma irradiation dose, and UV light exposure time were determined for Ge-doped SiO_2 optical fibers. The efficiency of dose reassessment for this fiber was compared to standard thermoluminescence detector, TLD100. Experiments show that the method works well with the UV lamp of 254 nm within region of doses between 3 to 50 Gy, but could be applied for higher and lower doses as well. The effect of exposure time of UV radiation on the PTTL signal was studied from 5 to 120 minutes to determine the highest sensitivity and the limit of the dose. The efficiency of dose reassessment with 10 Gy of gamma irradiation exposed to UV light for 15 minutes relative to PTTL values of about 27.0% and 2.3% for Ge-doped SiO_2 optical fiber and TLD 100.
机译：本文确定了用60℃γ射线照射后PTT1的特性，针对GE掺杂的SiO_2光纤测定γ射线曝光波长，γ辐照剂量和UV光暴露时间。将这种纤维的剂量重新评估的效率与标准热致发光探测器，TLD100进行比较。实验表明，该方法适用于254nm的UV灯在3至50gy之间的剂量内，但也可以施加更高和更低的剂量。从5到120分钟研究了UV辐射对PTTL信号对PTTL信号的影响的影响，以确定剂量的最高灵敏度和极限。剂量重新评估的效率与紫外光暴露于UV光的10GY，相对于Ge掺杂SiO_2光纤和TLD 100的PTTL值相对于PTTL值，为2.3％。

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