Development of Fast Scanning Magnets and Their Power Supply for Particle Therapy

被引：12

作者：

Furukawa, T. ^{[1
]}

Shirai, T. ^{[1
]}

Inaniwa, T. ^{[1
]}

Sato, S. ^{[1
]}

Takeshita, E. ^{[1
]}

Mizushima, K. ^{[1
]}

Hara, Y. ^{[1
]}

Noda, K. ^{[1
]}

Kakutani, N. ^{[2
]}

Kanai, Y. ^{[2
]}

Iseki, Y. ^{[2
]}

Hirata, Y. ^{[2
]}

Yamazaki, C. ^{[3
]}

机构：

[1] Natl Inst Radiol Sci, Chiba 2638555, Japan

[2] Toshiba Co Ltd, Tokyo 1058001, Japan

[3] Toshiba Mitsubishi Elect Ind Syst Corp, Tokyo 1080073, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2014年 / 24卷 / 03期

关键词：

Particle therapy; scanning delivery; CARBON-ION RADIOTHERAPY; SYSTEM; PROTON; BEAMS;

D O I：

10.1109/TASC.2013.2281355

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

At the Heavy Ion Medical Accelerator in Chiba (HIMAC), more than 8000 patients have been successfully treated by carbon ion beams since 1994. The successful results of treatments have led us to construct a new treatment facility equipped with a 3-D pencil beam scanning irradiation system. For the implementation of this irradiation technique, we developed a fast scanning magnet and its power supply, which are required to have field ramp rate of more than 250 T/s. The scanning magnets set at the entrance of the irradiation system are two dipole magnets to scan the beam in both horizontal and vertical directions and used to form the irradiation field to be tumor shape. Before the installation, performance test including both static and dynamic field measurement was carried out. Severe delay of the field and temperature rise were not observed as expected. Measured field ramp rate reached up to 300 T/s. After the installation, we verified the accuracy and stability of the scanned ion beam through the commissioning with the beam. As a successful result of the commissioning, treatment using the new scanning system was started in 2011.

引用

页数：4

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