Hi,

After completing B.sc in Radiotherapy, you can pursue post-graduate degree/diploma in Radiology. You can pursue Master's in Cancer Chemotherapy, Diagnostic radiology, Radiotherapy Planning Practice, and Nuclear Medicare. You can also pursue Diploma in Radiography from colleges like MGM Medical College.

You can also pursue PhD in Radiotherapy but if you want to work in hospitals, then pursuing M.sc or Diploma after completing B.Sc is enough. If you want to go for higher studies, then you can surely go for PhD or research programs.

Hope this helps