That's a very good read. Thank you!

Radiation therapy is the medical use of ionizing radiation to treat cancer, by destroying tumor cells. Traditionally, this is accomplished by using beams of X rays, i.e. high-energy photons.

I am glad the physics has medical applications at in situ part of human body. Again, this shows the importance of technology transfer and the intriguing part of how developed technologies can be used for other surprising applications ;)