Exposure to Radiation Part Two

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The dose from non-occupational radiation results in an average yearly exposure of 300 mrem. This can be compared to the average occupational radiation dose received by nursing staff caring for therapy patient as well as the regulatory dose limit in the following table:

Federal and State whole body dose limit

5000 mrem/year

average background radiation

360 mrem/year

average nursing staff dose

< 20 mrem/year


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