| ZHANG Wen-zhong,GUO Yong,LUO Yi-sheng.Dose distribution around ion track in tissue equivalent material[J].Chinese Journal of Radiological Medicine and Protection,2007,27(3):282-284 |
| Dose distribution around ion track in tissue equivalent material |
| Received:June 16, 2006 |
| DOI： |
| KeyWords:Ion MC method Tissue equivalent material Track construction Dose distribution |
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| Abstract:: |
| Objective To study the energy deposition micro-specialty of ions in body-tissue or tissue equivalent material(TEM). Methods The water vapor was determined as the tissue equivalent material, based on the analysis to the body-tissue, and Monte Carlo method was used to simulate the behavior of proton in the tissue equivalent material. Some features of the energy deposition micro-specialty of ion in tissue equivalent material were obtained through the analysis to the data from calculation. Results The ion will give the energy by the way of excitation and ionization in material, then the secondary electrons will be generated in the progress of ionization, these electron will finished ions energy deposition progress. When ions deposited their energy, large amount energy will be in the core of tracks, and secondary electrons will devote its' energy around ion track, the ion dose distribution is then formed in TEM. Conclusions To know biological effects of radiation, the research to dose distribution of ions is of importance(significance). |
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