Author(s): LIU Xin-Guo1, 2 LI Qiang1, 1) WU Qing-Feng1, 2 TAO Jia-Jun1, 2 JIN Xiao-Dong1, 2 1 2
Pages: 151-155
Year: 2009 Issue:  2
Journal: Chinese Physics C
Keyword:  heavy-ion radiotherapy;  carbon ions;  therapeutic dose verification;  irradiation system;  dose opti-mization;
Abstract: Up to now, clinical trials of heavy-ion radiotherapy for superficially placed tumors have been carried out for six times and over 60 selected patients have been treated with 80—100 MeV/u carbon ions supplied by the Heavy Ion Research Facility in Lanzhou (HIRFL) at the Institute of Modern Physics, Chinese Academy of Sciences since November, 2006. A passive irradiation system and a dose optimization method for radiotherapy with carbon-ion beams have been developed. Experimental verification of longitudinally therapeutic dose distributions was conducted under the condition of simulating patient treatment in the therapy terminal at HIRFL. The measured depth-dose distributions basically coincide with the expected ones. These results indicate that the irradiation system and the dose optimization method are effective in the ongoing carbon-ion radiotherapy for shallow-seated tumors at HIRFL.