Photon radiotherapy
= Photon radiotherapy
External-beam treatment using photons that create secondary charged particles in tissue. Megavoltage depth-dose curves usually show build-up followed by an extended fall-off and exit dose.
= Photon radiotherapy
External-beam treatment using photons that create secondary charged particles in tissue. Megavoltage depth-dose curves usually show build-up followed by an extended fall-off and exit dose.