A radiation oncologist is an expert doctor who uses ionizing radiation, for example, megavoltage X-beams or radionuclides in the treatment of malignant growth. Radiation oncology is one of the three essential strengths, the other two being careful and therapeutic oncology, engaged with the treatment of malignant growth. Radiation treatment is a kind of disease treatment that utilizations light emissions vitality to slaughter malignant growth cells. Radiation treatment frequently utilizes X-beams, however protons or different kinds of vitality additionally can be utilized. The expression "radiation treatment" regularly alludes to outer pillar radiation treatment. During this kind of radiation, the high-vitality bars originate from a machine outside of your body that points the bars at an exact point on your body. During an alternate sort of radiation treatment called brachytherapy. Radiation is set inside your body.