The Protection of Personnel Engaged in Roentgenology and Radiology

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Abstract
WITH recent evidence suggesting that radiologists have a higher death rate from leukemia than their colleagues,1 2 3 protection from the dangerous effects of radiation in the fields of diagnosis, therapy and research becomes a subject of increased importance. Currently, a total exposure dose of 0.3 r per week is the accepted limit of safety.4 But whether this limit is really safe,5 or, indeed, whether it has much meaning at all is open to challenge.It should be apparent that ionizing radiant energy, capable of penetrating to the blood-forming organs, produces quite a different effect upon the body as a whole than . . .