Radiation therapy to eliminate harmful cells has become a common diagnosis method for a variety of cancers. To cure cancer, it uses X-rays , gamma rays , electron beams , or protons . Adjuvant radiation , palliative radiotherapy , and curative radiotherapy are the three types of radiotherapy. Early detection, the size of the tumour, and the histological makeup of cancer all play a role in its prognosis. Gamma Knife surgery, Three-Dimensional Conformal Radiation Therapy, Triggered imaging radiosurgery, Brachytherapy, External Beam Radiation Treatment, Total Body Irradiation, Total Skin Irradiation, Stereotactic Body Radiation Therapy and others are examples of radiation therapy techniques. The latest developments in radiation therapy, as well as any novel methods that have become accessible, can be discussed.