Solved: Describe the outcomes of radiation exposure at different doses (in rem)

Solution 48Q:

Here, we are going to describe the outcomes of radiation exposure at different doses.

Step1:

The main unit of radiation exposure is rem(roentgen equivalent man). It measures the amount of ionization in the air caused by radioactive decay of nuclei.

Step2:

Radiation exposure can be specified in terms of the radiation dose. The two important categories of dose are:

• Physical dose or absorbed dose
• Biological dose or dose equivalent

Low-dose radiations are not harmful but high-dose radiations may lead to death. Radiation doses above 300 rem can be fatal and doses above 600 rem are almost certain to be fatal.

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