title: Nuclear reactions in linear medical accelerators and their exposure consequences.
abstract: Qualitative and quantitative analysis of radionuclides originating inside a medical linear accelerator during emission of high-energy therapeutic photon beams (15, 18, and 20 MV) is presented. The semiconductor spectrometry method allowed to obtain the fluence rate of photons with defined energy and hence, to quantify the dose at the chosen points in the vicinity of linac, contribution of particular radionuclides and its evolution in time. Typically used materials: copper, tungsten, lead, tantalum and their admixtures: antimony, manganese or bromine, are activated the most.
authors.affiliation: Medical Physics Department, University of Silesia, Institute of Physics, Katowice, Poland. kinga.polaczek-grelik@us.edu.pl
authors.forename: Kinga
authors.initials: K
authors.lastname: Polaczek-Grelik
authors.forename: Barbara
authors.initials: B
authors.lastname: Karaczyn
authors.forename: Adam
authors.initials: A
authors.lastname: Konefał
mesh_terms: D019275:Radiopharmaceuticals / Q000008:administration & dosage*; D011878:Radiotherapy / Q000295:instrumentation*; D013057:Spectrum Analysis / Q000379:methods; D035501:Uncertainty
chemical_list: D019275:Radiopharmaceuticals