- 1959：Taipei Veterans General Hospital was founded, and had a radiation diagnostic section.
- 1961：The Hospital set up Division of Radiation Oncology, and bought two Co-60 therapy machines, one Cs-137 treatment machine, and a shallow X-ray therapy machine.
- 1962：Establishment of Division of Radiation Oncology under Department of Radiology for cancer patients.
- 1975：Division of Radiation Oncology expanded to Department of Cancer Treatment Center.
- 1994：Department of Cancer Treatment Center changed name to Department of Cancer Center.
- 2013：Department of Cancer Center changed name to Department of Oncology, with two divisions set under: Division of Radiation Oncology & Division of Chemoradiotherapy.
- 2022：Division of Radiation Oncology expanded to Department of Heavy Particles & Radiation Oncology.
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