Chapter 11, Problem 11.74CP

Interpretation Introduction

Interpretation:

The activity (in cpm) at a distance of $\text{10}\text{m}$ has to be calculated.

Concept Introduction:

Ionizing Radiation:

The term ionizing radiation states to high energy radiation. Ionizing radiation is not hazardous every time it occurs, but the hazard increases with following exposure and is especially damaging to quickly dividing cells such as cancer, bone marrow, immune system, hair follicles, or gonadal tissue.

Ionizing Radiation: intensity versus distance from the source

And it can be expressed as,

$\frac{{\text{I}}_{\text{1}}}{{\text{I}}_{\text{2}}}\text{=}\frac{{\text{d}}_{\text{2}}{}^{\text{2}}}{{\text{d}}_{\text{1}}^{\text{2}}}$

Where,

$\begin{array}{l}{\text{I}}_{\text{1}}\text{and}{\text{I}}_{\text{2}}\text{are}\text{intensites}\\ {\text{d}}_{\text{1}}\text{and}{\text{d}}_{\text{2}}\text{distances}\end{array}$