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Smoky quartz.
What type of irradiation and what is the subject?
irradiance= power (Wm2)
irradiation= energy ( Wh/m2)
He was irradiated from the UV rays after the ozone hole. This is a sentence using irradiation as a word.
We subjected the entire plant to intense irradiation and then left it for five million years, the result was humans.