Proton therapy propreties

Proton therapy is a form of radiation treatment that uses beams of protons.

Protons have advantageous ballistic properties. But to achieve the high precision that these properties allow, there is a need for technologies that are both advanced (proton accelerator, a radioprotective shield) and sophisticated (systems for treatment planning, beam configuration and positioning).

The interest of protons is mainly ballistic.

  • A proton is a heavy charged particle that deposits energy along its trajectory before stopping abruptly at some point, where it delivers maximum energy. Beyond this point, tissues receive essentially no radiation.
  • In addition, protons are heavy particles that tend to go straight (little lateral side scatter), resulting in only a small dose deposited in tissues bordering the tumor.


Author / Source : Proton Therapy Center