Nuclear reactions in linear medical accelerators and their exposure consequences

作者：Polaczek Grelik Kinga^*; Karaczyn Barbara; Konefal Adam

来源：Applied Radiation and Isotopes, 2012, 70(10): 2332-2339.

DOI：10.1016/j.apradiso.2012.06.021

• Induced radioactivity
• High-energy medical linac
• Nuclear reactions
• Semiconductor spectrometry
• Ambient dose equivalent

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.

• 出版日期2012-10