Relocated to Gongneung-dong in 1984, the department laid out the framework of radiotherapy with excellent medical staff including Seong Ryeol Ryu, Cheol Gu Jo, Mi Sook Kim, Hyung Jun You, Kwang Mo Yang, Won il Jang, Eun Gyeong Baek, and Eun Ji Kim joining the team.

While developing various proximity irradiation devices and applying them to clinical practice, the department achieved a milestone in the development of therapeutic radiology by performing neutron therapy for the first time in Korea through the installation of 50.5MeV Cyclotron in 1986.

Befitting its title as the first and only one in Korea for radiotherapy, the department has treated numerous cancer patients. Prior to 2000, it treated the largest number of cancer patients in Korea. With the introduction of CyberKnife system for the first time in Korea in June 2002, the department brought hope to patients who could not achieve complete cure through the existing radiotherapy. Following the introduction of the third-generation CyberKnife system in 2002, the fourth-generation system replaced the previous one in 2013. Through the process, the Korea Cancer Center Hospital produced a remarkable achievement of completing over 3,000 radiosurgeries.

The accomplishment contributed to enhancing the department’s international status as it was published in prestigious international journals. Currently, the Korea Cancer Center Hospital is making considerable contributions to the development of radiotherapy in developing countries as a training hospital for radiosurgery and radiotherapy in the East Asian region.

Having introduced RapidArc, a state-of-the-art, intensity-modulated radiotherapy system, in 2009, the department installed an additional RapidArc unit in 2013.

As such, the Department of Radiation oncology is making continuous efforts to provide the best medical care service with the latest technologies in the ever-changing radiotherapy environment.