Concept explainers
(a)
The dose to the thyroid due to an acute exposure of
(a)
Answer to Problem 11.9P
Explanation of Solution
Given:
Mass of thyroid is
Formula used:
The initial dose rate is
Where,
Calculation:
According to Appendix C average person breaths 20 L per min. So, the light activity is:
The below table is drawn referring ICRP 2:
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Thyroid |
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Body |
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The dose is calculated as:
The initial dose rate for is
For
So, dose to the thyroid is:
Conclusion:
The dose to the thyroid due to an acute exposure of
(b)
The dose to the thyroid due to an acute exposure of
(b)
Answer to Problem 11.9P
Explanation of Solution
Given:
Mass of thyroid is
Formula used:
The initial dose rate is,
Where,
Calculation:
The initial dose rate is,
For
So, dose to the thyroid is:
Conclusion:
The dose to the thyroid due to an acute exposure of
(c)
The total body dose due to the protein bound iodine.
(c)
Answer to Problem 11.9P
Explanation of Solution
Given:
Mass of body is
Formula used:
The initial dose rate is,
Where,
Calculation:
The dose is calculated as:
The initial dose rate for is
For
So, dose to the thyroid is:
Conclusion:
The total body dose due to the protein bound iodine is
(d)
The effective dose for body from each isotope.
(d)
Answer to Problem 11.9P
Explanation of Solution
Given:
Mass of body is
Formula used:
The initial dose rate is,
Where,
Calculation:
The dose is calculated as:
The initial dose rate for is,
For
So, dose to the thyroid is:
Conclusion:
The effective dose for body from each isotope is
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