The effects of Total Ionizing Dose irradiation on supercapacitors deployed in nuclear decommissioning environments
The effects of Total Ionizing Dose irradiation on supercapacitors deployed in nuclear decommissioning environments
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DOI：
10.1016/j.jpowsour.2020.228675
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发表时间：
2020-12
影响因子：
9.2
通讯作者：
Antonio Di Buono;N. Cockbain;P. Green;B. Lennox
中科院分区：
文献类型：
--
作者：
Antonio Di Buono;N. Cockbain;P. Green;B. Lennox
总电离剂量（TID）对电气元件的影响是评估核退役环境中可能部署的无线传感器节点寿命的关键参数。本研究的目的是通过实验评估TID对100 F超级电容器的电容、内阻和自放电特性的影响。设计并组装了一个自动测试电路，用于超级电容器的充电和放电。使用Co-60 γ射线辐射源辐照超级电容器，监测并记录超级电容器端子两端的电压、充电电流和放电电流以计算辐照过程中的电容。测量了辐照前后的内阻和自放电特性，考察了γ辐照对这些电性能的影响。实验结果表明，暴露于40 kGy的最大剂量的超级电容器的电容可以忽略不计的影响。内电阻和自放电特性不受TID高达89 kGy。这些结果表明，超级电容器是设计在大多数核退役环境中部署的能量存储系统的合适技术。
The effects of Total Ionizing Dose (TID) on electrical components is a key parameter to evaluate the life span of wireless sensor nodes for possible deployment in nuclear decommissioning environments. The aim of this study was to experimentally evaluate the effects of TID on capacitance, internal resistance and the self-discharge characteristic of 100 F supercapacitors. An automated test circuit was designed and assembled to charge and discharge the supercapacitors. The supercapacitors were irradiated using a Co-60 γ ray radiation source and the voltage across the supercapacitor terminals, charging current and discharging current were monitored and logged to calculate the capacitance during the irradiation process. Measurements of internal resistance and self-discharge characteristic were performed before and after the irradiation to examine the effects of exposure to γ radiation on these electrical properties. The experimental results show negligible effects on the capacitance of supercapacitors exposed to a maximum dose of 40 kGy. The internal resistance and self-discharge characteristics were not affected by TID up to 89 kGy. These results demonstrate that supercapacitors are a suitable technology to design an Energy Storage System to be deployed in the majority of nuclear decommissioning environments.