Introduction To Health Physics
5th Edition
ISBN: 9780071835275
Author: Johnson, Thomas E. (thomas Edward), Cember, Herman.
Publisher: Mcgraw-hill Education,
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Chapter 13, Problem 13.2P
To determine
Whether the source is contaminated or not.
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Calculate the exposure rate at 1.0 m from an unshielded 10 mCi of Cs137 source.
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- What is the half-life, t½, (in hr) when the concentration was 100 mg/L?arrow_forwardFind the minimum sample size n needed to estimate μ for the given values of c, σ, and E. c=0.90, σ=7.4, and E=2 Assume that a preliminary sample has at least 30 members. n=enter your response here (Round up to the nearest whole number.)arrow_forwardA radioactive source is producing 1.50 MeV gamma rays. If two detectors are placed 4.00 m and 7.00 m away respectively, what is the ratio of the measured intensities of the near detector over the far detector (I2/I1)? Do NOT include units in your answer answer to 2 decimal places.arrow_forward
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