5. You figure the Radiation intensity without shielding is 78 mSv/h for a fellow CEDO's radiographic exposure, and behind a close by shield you figure the intensity is 3mSv/h. If the HVL of shielding material is 4 mm, what thickness is that shield?

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5. You figure the Radiation intensity without shielding is 78 mSv/h for a fellow CEDO's radiographic
exposure, and behind a close by shield you figure the intensity is 3mSv/h. If the HVL of shielding
material is 4 mm, what thickness is that shield?
Transcribed Image Text:5. You figure the Radiation intensity without shielding is 78 mSv/h for a fellow CEDO's radiographic exposure, and behind a close by shield you figure the intensity is 3mSv/h. If the HVL of shielding material is 4 mm, what thickness is that shield?
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