The amount of radiation received per unit time by a person working near a radioactive source, commonly called the dose rate, is measured in rem hr-1. The safety regulations forbid dose rates in excess of 7.5 × 10-4 rem hr-1. The γ dose rate from the 4219K source is found to be 3 × 10-3 rem hr-1 at a distance of 1 m. What is the minimum distance from this source at which itis safe to work? After how long will it be safe to work at a distance of 1 m from the source?

The unstable nuclei of different element or isotopes of some element emits radioactive ways. The…

Answered: The amount of radiation received per…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The amount of radiation received per unit time by a person working near a radioactive source, commonly called the dose rate, is measured in rem hr^-1. The safety regulations forbid dose rates in excess of 7.5 × 10^-4 rem hr^-1. The γ dose rate from the ⁴²₁₉K source is found to be 3 × 10^-3 rem hr^-1 at a distance of 1 m. What is the minimum distance from this source at which it
is safe to work? After how long will it be safe to work at a distance of 1 m from the source?

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