question archive A worker accidentally inhales Pu-239, which results in an alpha dose of 500 mGy and a gamma dose of 200 mGy to the lung
A worker accidentally inhales Pu-239, which results in an alpha dose of 500 mGy and a gamma dose of 200 mGy to the lung
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A worker accidentally inhales Pu-239, which results in an alpha dose of 500 mGy and a gamma dose of 200 mGy to the lung.
(1) What is the total equivalent dose to the lung? The weighing factors are 20 for alpha particle and 1 for gamma-ray.
(2) The tissue weighting factor of the lung is 0.12. What is the effective dose caused by inhaling Pu-239?
(3) Assuming the person also received an external dose of 150 mSv, what is the TEDE?
(4) You measure an exposure rate of 32 mR/hr at 5 feet from a source. If you want to reduce the exposure rate to 2 mR/hr, how far away would you need to be?
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