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  • This picture is from a radiologist who routinely exposed his hands to measure the Skin Erythema Dose (SED).
  • This resulted in thousands of RAD of x-ray exposure to his hands over many years.
  • High and prolonged exposures caused amputations, loss of dermal layer of skin, and many skin cancers.
  • Many radiologists in the early days of x-ray use suffered these types of radiation injuries while performing quality assurance and exposure measurements.

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