ガンマー線フィールド内の不飽和脂肪酸および液状有機化合物の挙動(第3報) : 流動パラフィンを用いた特殊測定槽の電気伝導

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In continuation of the work reported in the previous paper, in order to elucidate the radiochemica1 reaction mechanism of liquid organic compounds from their electric conduction phenomenon in the γ-field, effect of voltage and temperature on electric resistance when sealed in liquid paraffin was examined by using a special measuring cell having a wide electrode area. It was found that electric resistance increased with increasing voltage, contrary to the time of non-irradiation. Effect of temperature on electric resistance is smaller during irradiation than without irradiation, and the activation energy calculated from the observed value was about 0.2 eV by irradiation of 1.2x10^5 r./hr. against about 0.7 eV without irradiation. This indicates that activation energy falls at the time of irradiation, same as in solid polymers. Dose-rate response was fast, being below 30 seconds, and was within the transition rate of the radiation source or sample in the laboratory. The values at the time of re-irradiation reproduce the values corresponding to the irradiation dose. From these results, it is considered that the majority of electric couduction during γ-irradiation is due to electrons.
公益社団法人日本薬学会の論文
1966-01-25