NIRS, Chiba-shi, Japan
KVI, Groningen, The Netherlands
National Institute of Radiological Sciences, Chiba, Japan
SAGA HIMAT, Saga, Japan
AEC, Chiba, Japan
Gunma University, Heavy-Ion Medical Research Center, Maebashi-Gunma, Japan
| Paper | Title | Page |
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| FRYA02 | Status of ECR Ion Sources for Carbon-ion Radiotherapy in Japan | 200 |
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| Heavy-ion radiotherapy is successfully carried out at the Heavy Ion Medical Accelerator in Chiba (HIMAC) at the National Institute of Radiological Sciences (NIRS) since 1994. Now three facilities are in operation and two are under construction in Japan. Over 8000 cancer patients have already been treated. 140-400 MeV/u carbon beams were selected for the first clinical trials at HIMAC because carbon is one of the best candidates which gives good localized biological dose distribution for the typical conditions, a depth of 10 - 25 cm and a thickness of several cm. Based on the clinical results, all the patients have been treated by carbon beams at present. The ion source needs to realize a stable carbon beam with the same conditions for daily operation. Since operators are usually not specialists of the ion source, the source should not require complicated manual tuning. In addition, shorter maintenance time and cycle are better for a hospital. ECR ion sources are utilized for such requirements in each facility. We report the recent status of the ECR ion sources at heavy-ion radiotherapy facilities in Japan. | ||
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Slides FRYA02 [5.652 MB] | |