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University Physics Volume 3

17th Edition
William Moebs + 1 other
ISBN: 9781938168185
BuyFindarrow_forward

University Physics Volume 3

17th Edition
William Moebs + 1 other
ISBN: 9781938168185
Textbook Problem

A plumber at a nuclear power plant receives a whole - body dose of 30 mSv in 15 minutes while repairing a crucial valve. Find the radiation-induced yearly risk of death from cancer and the chance of genetic defect from this maximum allowable exposure.

To determine

The radiation-induced yearly risk of death from cancer and the chance of genetic defect for the maximum allowable exposure.

Explanation

Given:

Dose equivalent =30 mSv 

  1 Sv=1000 mSv1 mSv=11000 Sv30 mSv=301000 Sv30 mSv=0.03 Sv

So, Dose equivalent =0.03 Sv 

Time t=15 min

Formula used:

Dose equivalent (or effective dose) = 100 × Roentgen equivalent man

Standard notification of formula:

  1 Sv = 100 rem

  Sv= Sievert is SI unit of dose equivalent

  rem = dose equivalent related to the effects of biological tissues.

Calculation:

By the formula:

  1 Sv = 100 rem0.03 Sv = 0.03×100 rem0.03 Sv = 3 rem

Now, radiation-induced yearly risk of death per year from cancer is expressed as: 10106

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