Chapter 9.4, Problem 9.18P

(a)

Interpretation Introduction

Interpretation:

The radiation from radon gas in $\text{mrem}$ has to be converted in $\text{rem}\text{.}$

Concept Introduction:

Rem (radiation equivalent man):

The rem is a unit of radiation dosage applied to humans.  The rem is now defined as the dosage in rads that will cause the same amount of biological injury as one rad of x-rays or gamma rays.

Millirem:

A rem is a large dose of radiation so the millirem (mrem) which is one thousandth of a rem, is often used for the dosages commonly encountered, such as the amount of radiation received from medical x-rays and background sources.

(b)

Interpretation Introduction

Interpretation:

The radiation from radon gas in $\text{rem}$ has to be converted in millirem.

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

The larger dose has to be identified.