Abstract
Hot atom chemistry - the study of chemical effects of nuclear transformations has had practical applications in such areas as neutron activation analysis and radiopharmaceutical chemistry. Utilization is made of the activation event where a radioactive atom born in the nuclear transformation acquires a high kinetic energy which can result in unique chemical reactivity. In a sense a “hot atom” can be utilized as an interactive tracer especially in multiphase systems where site information can be determined. It is important that the hot atom has distinctly different chemical reactivities with the phases. This was illustrated in the neutron irradiation of dilute liquid and frozen aqueous solutions of iodinated biological compounds, some of which are single DNA-precursor derivatives. State of aggregation information can be found at various concentrations which can relate to solute-solute interactions of a biochemical in water solutions. For frozen aqueous systems involving monomolecular dispersion of halogenated biochemicals within an ice lattice, caging effects of a hot atom can be studied.
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