” Radiotherapy (RT) is extremely advanced technology-driven treatment modality within the management of cancer. RT techniques have modified considerably over the past few decades, due to enhancements in engineering and computing. we have a tendency to aim to spotlight the recent developments in radiation medical specialty, specializing in the technological and biological advances. we’ll progressive treatment techniques, using gauge boson beams, like intensity-modulated RT, volumetric-modulated arc medical care, stereotactic body RT and accommodative RT, that modify a extremely tailored dose distribution with mosttraditional tissue frugal. we’ll analyse all the steps concerned within the treatment: imaging, delineation of the neoplasm and organs in danger, treatment coming up with and eventually image-guidance for correct neoplasm localisation before and through treatment delivery.