2023 Fiscal Year Final Research Report
Development of ripple filter using lung substitute material for broadening the Bragg peak of heavy-ion beams
| Project/Area Number |
20K16808
|
|---|
| Research Category |
Grant-in-Aid for Early-Career Scientists
|
| Allocation Type | Multi-year Fund |
|---|
| Review Section |
Basic Section 52040:Radiological sciences-related
|
|---|
| Research Institution | Institute of Physical and Chemical Research (2021-2023)
National Institutes for Quantum and Radiological Science and Technology (2020) |
|---|
Principal Investigator |
Abe Yasushi 国立研究開発法人理化学研究所, 仁科加速器科学研究センター, 協力研究員 (10755531)
|
|---|
| Project Period (FY) |
2020-04-01 – 2024-03-31
|
| Keywords | 重粒子線治療 / リップルフィルタ / マルチイオン治療 |
|---|
| Outline of Final Research Achievements |
The purpose of this study is to develop a new ripple filter that use to broaden the Bragg peak of heavy-ion beams using lung substitute material.Conventional metal filters are very expensive and require time to manufacture until they are available, which raises operational concerns.Lung substitute material are already in use in heavy-ion therapy and are relatively low const.
The Quantum Scalpel Project is promoting the use of multi-ion therapy, in which not only carbon ions but also other ions such as helium, oxygen, and neon are irradiated on the same beamline as a new treatment method.The goal is to develop a filter that is versatile enough to be used for each ion at the same time.
|
| Free Research Field |
原子核実験
|
| Academic Significance and Societal Importance of the Research Achievements |
本研究では不均質材(GAMMEX,LN300)を用いて重粒子線に対する新たなBraggピーク拡大のためのフィルタの開発を行った。フィルタとしての性能については、炭素ビームだけでなく、ヘリウム、酸素、ネオンビームにも照射したところ性能をBraggピークの拡大はもちろん、フィルタの照射位置の非依存性、線量分布の一様性などフィルタとしての性能を十分に発揮できるデータが得られた。既製品を利用することで比較的安価なフィルタの実現が可能と目された。さらにはこのフィルタの性質に着目した新たなフィルタも開発され、マルチイオン治療の実現が近づいたと思われる。
|
