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Answer to Question #335 Submitted to "Ask the Experts"Category: Doses and Dose Calculations — External dose calculations The following question was answered by an expert in the appropriate field: Q
Does the size or mass of an object that is emitting radioactive waves impact the distance one must stay away from it to be safe?
A
The size or mass can impact the safe distance. For example, if the dose equivalent rate 1 m from a 1-lb object was 1 mSv/hr, the dose equivalent rate 1 m from a 2-lb object of the same material would be approximately 2 mSv/hr.
Steve Sims, Ph.D.
Oak Ridge National Laboratory
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