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

抄録

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 1.2x10⁵ 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.