Is attenuation technique sensitive enough to be used to make distinction between FF and FFF spectrum of therapy linac
| Autor: | V Nevena Ignjatov, Mirjana Mikalački, Miodrag Krmar, Arpad Toth, D Luka Dragojlovic |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Field (physics) Laplace transform business.industry Attenuation flattening filter photon spectra Mode (statistics) attenuation analysis Photon energy Spectral line Linear particle accelerator Optics Nuclear Energy and Engineering lcsh:QC770-798 lcsh:Nuclear and particle physics. Atomic energy. Radioactivity Safety Risk Reliability and Quality business flattening filter free Energy (signal processing) |
| Zdroj: | Nuclear Technology and Radiation Protection, Vol 34, Iss 2, Pp 145-148 (2019) |
| ISSN: | 1452-8185 1451-3994 |
| Popis: | The purpose of this study was to check if attenuation analysis is sensitive enough to make a distinction between photon energy spectra of standard accelerators and accelerators operating without a field flattening filter. Attenuation measurements were performed in two operating modes of a medical linear accelerator: with a flattening filter and without it, at nominal energy of 6 MV. Numerical and Laplace transform pair methods were used for spectra reconstruction. Although the difference between two attenuation curves is very small, as expected both reconstruction techniques produce slightly softer spectra at flattening filter free mode. The most important conclusion of this pilot study is that attenuation analysis can be a sensitive tool which is able to detect spectral differences between photon beams of an accelerator operating in two regimes. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. 174019] |
| Databáze: | OpenAIRE |
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