Industrial radiographers use various types of radiation to inspect structural welds and components.
The table lists some types of radiation used or encountered in industrial testing. Complete the table by putting a tick (✓\checkmark✓) in each row to show which types of radiation are ionising and which are non-ionising. One has been done for you.
| Radiation | Ionising | Non-ionising |
|---|---|---|
| beta particles | ✓\checkmark✓ | |
| alpha particles | ||
| visible light | ||
| radio waves |
State two safety precautions that industrial radiographers should take to reduce their occupational exposure to ionising radiation.