The radiolysis of simple gas mixtures—III. the production of “trace organics”

Alan Dyer, Graham E. Moores
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引用次数: 1

Abstract

Carbon dioxide based gas mixtures, similar to those used as coolants in the Advanced Gas-cooled Nuclear Reactors, have been radiolyzed at the comparatively low dose rate of 3 Gy s-1 using γ-radiation from a 60Co source. The concentrations of certain C4 and C5 alkanes, ethanal and propanone, produced by radiolysis, have been determined under different conditions of temperature, pressure, gas composition, and surface area. Observations showed that these compounds were produced in concentrations of the order of 1/1000 of the methane concentration and that the production of these “trace organics” varied in a complex way with the experimental parameters. Mechanisms for the production of these organics have been proposed. Some unidentified products of radiolysis were observed and suggestions are made as to their nature.

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简单气体混合物的辐射分解- iii。“微量有机物”的产生
以二氧化碳为基础的气体混合物,类似于先进气冷核反应堆中用作冷却剂的气体混合物,已经使用来自60Co源的γ辐射,以3 Gy s-1的相对较低剂量率进行了辐射分解。在不同的温度、压力、气体组成和表面积条件下,测定了辐射分解产生的某些C4和C5烷烃、乙醛和丙烷的浓度。观察表明,这些化合物的产生浓度约为甲烷浓度的1/1000,并且这些“微量有机物”的产生随实验参数的变化而发生复杂的变化。已经提出了这些有机物产生的机制。观察了一些未确定的放射性溶解产物,并对其性质提出了建议。
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