I work with what is considered ‘non-ionising’ radiation, for which there are very few risks. I wear goggles to protect my eyes from bright flashes of light. Some of my colleagues work with x-rays and sometimes have to wear lead aprons, but often they can do things from another room.
Yes, people working with laser need to be protected. And the most dangerious part is eyes. So goggles are necessary. When the laser’output is even higher, it is easier for body to be hurt as well. That’s the reason why the laser with power output above 250 W are required to be covered.
Laser radiation can cause mostly eye damage, or burns to the skin if it’ very powerful. If you’re talking about other types of radiation like X-rays or Gamma rays that are used for things like medical imaging, then you need to control the amount of exposure that you get and use lots of lead shielding.
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