ABSTRACT

ɤ-Irradiation induces electrical conductivity (RIC) in water. But, the RIC values of water can be more than twofold higher in the presence of SG with particle size in the range >0.16–0.2 mm, relative to that of water only. Can this phenomenon be used in ɤ- radiation dosimetry? In order to answer this question, the effects of absorbed dose, absorbed dose rate, and post-irradiation storage time, on the RIC, were studied. A linear increase (R² = 0.9952) in RIC with the increase in radiation absorbed dose was observed up to 16.24 kGy. Uncertainty type A (95% confidence level) of the measurements of absorbed dose/RIC function was found to be in the range 0.028–0.14. The coefficient of variation (CV%) of the studied system measurements was calculated, which did not exceed 6.53%. The RIC of the irradiated solutions showed good stability during post-irradiation storage (14 days at 0°C storage condition), where the fading of the response after storage was found to be in the range 2.16–3.50%. Moreover, the RIC increases, linearly, as the dose rate decreases (0.28–1.12 kGy/h). The studied dose ranged, of such system, covers dosimetric applications in medical and food irradiation.

摘要

ɤ辐射会在水中感应出电导率（RIC）。但是，在SG的存在下，粒径> 0.16-0.2 mm的水的RIC值可以比仅水的RIC值高两倍以上。phenomenon-辐射剂量法中可以使用这种现象吗？为了回答这个问题，研究了吸收剂量，吸收剂量率和辐照后储存时间对RIC的影响。线性增加（R ² RIC为0.9952），随着辐射吸收剂量的增加，观察到高达16.24 kGy。发现吸收剂量/ RIC功能的不确定度A（95％置信水平）在0.028-0.14范围内。计算出所研究系统测量值的变异系数（CV％），其不超过6.53％。辐照溶液的RIC在辐照后的储存期间（0°C储存条件下14天）显示出良好的稳定性，发现储存后的响应褪色范围为2.16–3.50％。此外，当剂量率降低时（0.28–1.12 kGy / h），RIC呈线性增加。这种系统的研究剂量范围涵盖了医疗和食品辐照中的剂量学应用。