Effect of water-droplet sizes and radiation-field exposure on the transfer of I2 and CH3I gases adsorbed in water

Abstract

Experimental findings on the transfer of I2 and CH3I gases adsorbed in water were accomplished according to different water-droplet sizes with or without exposure to a radiation field, using two different analysis methods: quantitative analyses based on ultraviolet-visible light and gas chromatography-mass spectroscopies. The amount of transferred volatile iodine was strongly influenced by the existence of water, and a little larger amount of I2 or CH3I was transferred with bigger sized water droplets than smaller ones when the same amount of water was applied. The decomposition effect was superior to the charging effect under a γ-radiation field in our experimental condition, and the relationship between transferred volatile iodine concentrations and water-droplet sizes in the presence of radioactive sources was following the trend of the absence of radioactive sources.