The Maximum Permissible Workday Dose for Occupational Exposure to Radiation

question 128

Multiple Choice

The maximum permissible workday dose for occupational exposure to radiation is 11 mrem.A 77-kg laboratory technician absorbs 2.3 mJ of 0.5-MeV gamma rays in a work day.The relative biological effectiveness (RBE) for gamma rays is 1.00.What is the number of gamma-ray photons absorbed by the technician in a workday?

• A)3 × 10¹⁰
• B)3 × 10⁹
• C)3 × 10⁸
• D)1 × 10⁹
• E)1 × 10⁸

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