線照射無機水和物中に生成したH原子のESR観測

ESR observation of H atoms formed in -ray irradiated inorganic hydrates

平岡 遼*; 河合 雅史*; 岡 壽崇   ; 五十木 理子; 樋川 智洋   ; 北辻 章浩  ; 熊谷 友多   ; 熊谷 純*

Hiraoka, Ryo*; Kawai, Masashi*; Oka, Toshitaka; Ikarugi, Riko; Toigawa, Tomohiro; Kitatsuji, Yoshihiro; Kumagai, Yuta; Kumagai, Jun*

無機水和物を液体窒素温度下でガンマ線照射し、生成したH原子のESR測定を行った。77Kで観測されたH原子の相対量が多いBa(OH) 8HOの場合は、室温におけるHの収率が小さく、H原子が全く観測されなかったBa(OH) HOでは室温でのHの収率が大きかった。Ca(SO) 2HOでは線幅の異なる2種類のH原子のピークが観測され、水和水との磁気的相互作用の大きなH原子が昇温によって先に減少した。

ESR measurements were conducted on H atoms in gamma-irradiated inorganic hydrates at 77 K. The results showed that a relatively high amount of H atoms was observed in Ba(OH) 8HO at 77 K, although it had a small yield of H at room temperature. On the other hand, in Ba(OH) HO, no H atoms were observed, and the yield of H at room temperature was large. In CaSO 2HO, two types of H atoms with different line widths were observed. The H atom with a larger magnetic interaction with hydrated water decreased first with increasing temperature.