Shielding_ALARA(As Low As Reasonably Achievable)

Using Personal Protective Equipment

The guiding principle of radiation safety is “ALARA”. ALARA stands for “as low as reasonably achievable”. ALARA means avoiding exposure to radiation that does not have a direct benefit to you, even if the dose is small.

To do this, you can use three basic protective measure in radiation safety_Shielding; 

To shield yourself from a radiation source, you need to put something between you and the radiation source. The most effective shielding will depend on what kind of radiation the source is emitting. Some radionuclides emit more than one kind of radiation