2024-03-29T08:38:29Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/884202020-11-19T15:09:05Zcom_10261_14181com_10261_4col_10261_14182
2013-12-11T09:04:47Z
urn:hdl:10261/88420
Modelling low energy electron and positron tracks for biomedical applications
Sanz, A.G.
Fuss, Martina
Muñoz, Antonio
Blanco, Francisco J.
Limão-Vieira, P.
Brunger, M.J.
Buckman, S.J.
García, Gustavo
Electron scattering
Positron interactions
Track simulation
Purpose: To incorporate the effects of low energy electrons and positrons into radiation interaction models. Materials and methods: The simulation method proposed here was based on experimental and theoretical cross section data and energy loss spectra we have previously derived. After a summary of the main techniques used to obtain reliable input data, the basis of a Low Energy Particle Track Simulation (LEPTS) procedure was established. The programme is specifically designed to describe electron and positron interactions below 10 keV, down to thermal energies. Results: Single electron and positron tracks in water are presented and the possibility of using these results to develop tools for nanodosimetry is discussed. Conclusions: Standard approximations based on high incident energies, such as the Born-Bethe theory, are not suitable to simulate electron and positron tracks below 10 keV. Prior to the inclusion of low-energy effects in a radiation model, an appropriate study is required to determine both the interaction cross sections and the energy loss spectra.
2013-12-11T09:04:47Z
2013-12-11T09:04:47Z
2012
2013-12-11T09:04:47Z
artículo
International Journal of Radiation Biology 88: 71- 76 (2012)
http://hdl.handle.net/10261/88420
10.3109/09553002.2011.624151
eng
closedAccess
Taylor & Francis