Electromagnetic radiation and its interaction with matter

 Photons are a kind of boson that conveys electromagnetic energy. They have no charge and are accordingly an in a roundabout way ionizing molecule. At lower energies, they transcendently collaborate with issue through reasonable dissipate and the photoelectric impact. For the photoelectric impact, a photon goes in and an electron comes out. At energies in the scope of radiotherapy treatment, the overwhelming collaboration is Compton dissipate, where photons ricochet off of electrons and move a portion of their energy to the electrons all the while. At higher energies, pair creation becomes conceivable with the end goal that a photon will cause the creation of an electron and a positron that can cause obliteration. Likewise at higher energies, photons may collaborate with the core and cause it to deliver nucleons. Pair creation and photonuclear crumbling are commonly unwanted for the reasons for radiation treatment.

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