Radiobiological model for carbon ion radiotherapy

Radiobiological model for carbon ion radiotherapy

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Comparison of the physical dose distribution (upper diagram) and the survival rate of cells (lower diagram) as a function of penetration depth for ion and photon beams. The enhanced energy deposition at the end of the particle range and the corresponding dramatic decrease of cell survival show that heavy ion beams are excellent tools for the treatment of deep seated tumours.
The good agreement between experiment (red symbols) and calculations (red lines) is of essential importance for treatment planning. Since the relative biological effectiveness (RBE) and the cell survival cannot be measured for an individual patient we have to rely completely on calculations at this point.
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Last update: January 29th 2003, M.Kraemer@gsi.de, Design: Marcus Winter, M.Winter@gsi.de