Question

A 50 kg laboratory worker is exposed to 20 mJ of beta radiation with RBE = 1.5. What is the dose equivalent in mrem?

Short answer

Therefore, the dose equivalent in mrem is$60mrem$$60mrem$

Step-by-step solution

Given information

A 50 kg laboratory worker is exposed to 20 mJ of beta radiation with RBE = 1.5.

Explanation

The dose is given as:

$\frac{20\times {10}^{-3}\mathrm{J}}{50\mathrm{kg}}=0.0004\mathrm{Gy}$

The dose in Sv is:

$0.0004\times 1.5=0.0006\mathrm{Sv}$

Calculations

Hence the dose in mrem is

$$\begin{gathered} 0.0006\times 100=0.06\mathrm{rem} \\ =0.06\times 1000 \\ =60\mathrm{mrem} \end{gathered}$$