Chapter 31, Problem 43P

To determine

To find:The time period the source remain implanted

Explanation of Solution

Given data:

Administer value in a tumoris $36\text{Gy}$ .

The $1.0\text{mCi}$ source delivers about $10\text{mGy}/\text{min}$

  $\text{dose}=\text{rate}\times \text{time}$

  $\begin{array}{c}\text{time =}\frac{\text{ dose }}{\text{ rate }}\\ =\frac{36\text{Gy}}{10\times {10}^{-3}\text{Gy}/\text{min}}\left(\frac{1\text{ day }}{1440\text{min}}\right)\\ =2.5\text{ days }\end{array}$

Conclusion:

The source remain implanted for 2.5 days