2022 Fiscal Year Final Research Report
Development of a compact-ion production system for multi-ion treatment
| Project/Area Number |
20K08067
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 52040:Radiological sciences-related
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| Research Institution | National Institutes for Quantum Science and Technology |
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Principal Investigator |
Katagiri Ken 国立研究開発法人量子科学技術研究開発機構, 量子医科学研究所 物理工学部, 主幹研究員 (90510868)
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | EBIS / イオン源 / 重粒子線がん治療 / マルチイオン治療 |
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| Outline of Final Research Achievements |
Multi-ion treatment requires a multi-ion production system which enable to change ion species quickly. A compact Electron-beam ion source (EBIS) with a low-energy hollow electron beam has been developed to realize the multi-ion production system.
The following has been performed throughout the study period: (1) development of a new compact EBIS, (2) design and installation of a low-energy beam transport to perform the mass-analysis measurement for ions obtained from the new compact EBIS, (3) development of a particle-in-cell code to analyze the particle trajectories in the compact EBIS and in the beam transport. We will continue the development to realize the super-compact quick-ion-change multi-ion production system for heavy-ion therapy.
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| Free Research Field |
イオンビーム理工学
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| Academic Significance and Societal Importance of the Research Achievements |
QSTにて提案された， 治療効果のさらなる向上に繋がるマルチイオン照射法の実現は，早急に望まれるものである. 現在，世界中で稼働中の重粒子線施設は10施設，建設中の施設は7施設，計画中のものは11 施設存在する．日本各地に広がる重粒子線治療施設(千葉，兵庫，群馬，神奈川，佐賀，山形)だけでなく，それら世界中の施設おいても，マルチイオン照射法の実現のために本研究で開発している小型マルチイオン生成システムの適用が考えられる．したがって，本研究は社会的に意義深く，また小型化に繋がる幾つかの新規性を備えた小型EBISの開発のみを考慮しても，学術的にも価値が高いと考えられる．
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