Chapter 24, Problem 24.65P

Interpretation Introduction

Interpretation:

Dose $\left(rad\right)$ received by the brain of a cancer patient has to be determined using the given data.

Concept Introduction:

Radiation Dose is the dose quantity that explains the effects of ionizing radiation. It describes the quantity of radiation energy that is absorbed by a matter.

  $Dose\text{ = }\frac{Energy\left(Joules\right)}{Weight\left(kg\right)}$

The units commonly used to measure dose are $\text{gray }\left(Gy\right)\text{ and rad}.$

  $\begin{array}{l}\text{1 Gy = 1 J/kg}\\ \\ \text{1 rad = 0}\text{.01 J/kg = 0}\text{.01 Gy}\end{array}$

Unit conversion:

  $\begin{array}{l}1\text{ kg = 1}\times {\text{10}}^3\text{ g}\\ \\ \text{1 Bq = 1 disintegration per second}\end{array}$