Radiotherapy in Materials
High doses of radiation are used in radiation therapy, also known as radiotherapy, as a cancer treatment to eradicate cancer cells and reduce tumour size. Radiation is utilised in x-rays to view inside your body at minimal dosages, such as when x-raying your teeth or fractured bones.
A high-energy photon beam is by far the most common form of radiation used for cancer treatment. It is the same type of radiation that is used in x-ray machines, and comes from a radioactive source such as cobalt, cesium, or a machine called a linear accelerator (linac, for short).