Faculty of Sciences, University of Southern Queensland, Toowoomba, Qld 4350, Australia.
J Photochem Photobiol B. 2013 Nov 5;128:92-9. doi: 10.1016/j.jphotobiol.2013.09.001. Epub 2013 Sep 13.
The dosimetric properties of the recently introduced UV dosimeter based on 16 μm PVC film have been fully characterised. Drying the thin film in air at 50 °C for at least 28 days was found to be necessary to minimise the temperature effects on the dosimeter response. This research has found that the dosimeter response, previously reported to be mainly to UVB, has no significant dependence on either exposure temperature or dose rate. The dosimeter has negligible dark reaction and responds to the UV radiation with high reproducibility. The dosimeter angular response was found to have a similar pattern as the cosine function but deviates considerably at angles larger than 70°. Dose response curves exhibit monotonically increasing shape and the dosimeter can measure more than 900 SED. This is about 3 weeks of continuous exposure during summer at subtropical sites. Exposures measured by the PVC dosimeter for some anatomical sites exposed to solar radiation for twelve consecutive days were comparable with those concurrently measured by a series of PPO dosimeters and were in line with earlier results reported in similar studies.
最近引入的基于 16μm PVC 薄膜的紫外线剂量计的剂量学特性已经得到了充分的描述。研究发现，将薄膜在 50°C 的空气中干燥至少 28 天是必要的，以最小化温度对剂量计响应的影响。这项研究发现，以前报道的主要对 UVB 有响应的剂量计，对暴露温度或剂量率没有明显的依赖性。该剂量计的暗反应可忽略不计，对紫外线辐射的响应具有高度的重现性。剂量计的角度响应模式与余弦函数相似，但在大于 70°的角度时偏差相当大。剂量响应曲线呈现单调递增的形状，剂量计可以测量超过 900 的 SED。这大约是在亚热带地区夏季连续暴露 3 周的时间。在连续 12 天内，暴露于太阳辐射的一些解剖部位的 PVC 剂量计测量值与同时用一系列 PPO 剂量计测量的值相当，与类似研究中报告的早期结果一致。
