Alpha has the shortest range and can be blocked by a piece of paper. Alpha radiation consists of protons.
Gamma goes through most things and has the highest range. Gamma consists of electro magnetic radiation.
Beta is somewhere in the middle. It consists of electrons.
All are of concern, but Alfa is mainly of concern if ingested or inhaled. This is because all the radiation will be absorbed by your body, while most gamma would just escape. Gamma is of more concern outside the body, due to its reach.
I may remember some details wrong. I last learned about this in school a decade ago.
Gamma goes through most things and has the highest range. Gamma consists of electro magnetic radiation.
Beta is somewhere in the middle. It consists of electrons.
All are of concern, but Alfa is mainly of concern if ingested or inhaled. This is because all the radiation will be absorbed by your body, while most gamma would just escape. Gamma is of more concern outside the body, due to its reach.
I may remember some details wrong. I last learned about this in school a decade ago.