dear @pathforger we hear at particle accelerator facilities are carrying out cutting-edge research and various departments are bring new technologies to solve real life problem and issues. I am glad you found this article useful.
The method to treat the cancer with carbon beam is expensive but as time progress it will be avialable to masses of people. GSI in Darmstadt, Germany and HIT facility in Heidelberg, Gemany has proven that this technology is the futer with minimum damage to the healthy tissue.