1. PhotonPhotons are classified according to their origin (not their energy) From nucleus: Gamma rays From acceleration of charged particles: Bremsstrahlung radiations From atomic transitions of bound electrons: Characteristic X-rays From combination of positron and negatron: Annihilation photons<중 략>There are three major interactions: Photoelectric absorption ( low energy) C ompton Scattering (=incoherent scattering, medium energy) Pair production ( high energy)
방사선상호작용 - 광자 상호작용 (Photon Interactions)
