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前曾报道磷酸三丁酯(TBP)受γ射线照射时有三种可明显区分的活性粒种,可能为其激发态及离子态.本文以TBP为“探针”来检测n-C_6H_(14)—TBP体系在γ辐照下正己烷产生的激发态,求出正己烷可能存在两种激发态,它们的G值分别为0.71和0.34.提出了能量传递机理,获得正己烷敏化TBP的动力学公式.理论计算结果与实验值吻合.以TBP作“探针”测得正己烷激发态的G值≥1.05.
It was previously reported that when TBP was irradiated by γ-rays, there were three clearly distinguishable active species that may be excited states and ionic states.In this paper, TBP as a “probe” to detect n-C_6H_ (14) -TBP system under n-hexane irradiation, we found that there may be two excited states in n-hexane, their G values are 0.71 and 0.34, respectively. The energy transfer mechanism is proposed to obtain the kinetics of n-hexane sensitized TBP The theoretical calculation results are in good agreement with the experimental values.The G value of the excited state of n-hexane measured by TBP as a “probe” is ≥1.05.