Abstract
ANNEALING of the chemical effects of nuclear recoil in solid substances by ionizing radiations1 and by ultraviolet2 and visible3 light is well known. In the case of chemical radiation damage, evidence for the existence of radiation annealing, necessarily indirect, is provided by the observation that the rate of damage generation decreases with increase in the radiation dose. The effect is particularly pronounced in lead nitrate for which the steady state nitrite yield under gamma-irradiation, for example, is only about 2 per cent4,5. There is no record of photo-annealing of chemical radiation damage in the literature. We have observed the recombination of damage fragments in lead nitrate by light in the visible region.
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MOHANTY, S., NAIR, S. Photo-annealing of Chemical Radiation Damage. Nature 215, 1476–1477 (1967). https://doi.org/10.1038/2151476b0
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DOI: https://doi.org/10.1038/2151476b0
