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medical application

Radiation can be used for both therapy and diagnostic. Radiotherapy is the method in which high-energy X-ray or electron beam is used to destroy tumors and radiopharmaceuticals can be applied for diagnostic. X-ray and gamma radiations, as well as electron, proton, ion, and even neutron beams are widely used for medical applications.
In order to produce radiopharmaceuticals, variety of radiation generators from particle accelerators to research reactors can be used. In case of radiotherapy, radiation can either be directly applied as a source into the body and the tumor like BNCT (Boron Neutron Capture Therapy) or applied from outside of the body from X-ray generators, radioactive sources, or reactors. Radiotherapy, considering the type of radiation, can be divided into X-ray therapy, proton-therapy, ion-therapy, gamma-therapy, BNCT, and neutron therapy. Nowadays, many medical imaging systems also need ionizing radiations such as CT (computed tomography), PET (positron emission tomography), SPECT (single photon emission computed tomography). Thus, medial applications of radiation require sophisticated and high-tech systems such as research reactors or particle accelerators.
Radiotherapy along with chemotherapy and surgery is widely suggested by doctors. Therefore there has been a significant growth and improvement in radiotherapy systems such medical linear accelerators and recently large hadron-therapy cyclotrons and synchrotrons.