title: [Determination of the diffusion function of 25 MV x-rays in a tissue equivalent medium].
abstract: The diffusion function of 25 MV Roentgen rays in a tissue-equivalent material was determined experimentally as a function of the size of the beam and of the depth into the material. In order to characterize the beam, the attenuation of the beam in various materials was previously investigated. The results of the investigation demonstrate the important contribution of diffused radiation to the dose when using very high energy radiation.
mesh_terms: D004058:Diffusion; D011829:Radiation Dosage
vernacular_title: Determination de la fonction de diffusion de rayons X de 25 MV dans un milieu equivalent-tissu