2012 Fiscal Year Final Research Report
Direct measurements of degrees of multiple ionization of biomolecules induced by energetic heavy ions
| Project/Area Number |
23760826
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nuclear engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
MAJIMA Takuya 京都大学, 大学院・工学研究科, 助教 (50515038)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 高速イオン衝突 / 同時測定 / 多重電離 / 分子解離 / 多重分解 / 放射線物理 |
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| Research Abstract |
A multiple coincidence measurement system for collision experiments between fast ions and isolated biomolecules has been developed to elucidate physical processes in the first stage of radiation effects in biological systems. The number of emitted electrons has been measured to directly obtain degrees of multiple ionization of large molecules. Coincidence measurements between the number of electrons and product ions revealed fragmentation processesfrom transient highly excited ions with specific charge states. Furthermore, momentum vectors of fragment ions were obtained by applying the velocity map imaging technique.
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[Presentation] アバランシェフォトダイオードによる二次電子個数分布の測定2012
Author(s)
西尾達哉,岸本孝則,間嶋拓也,須田慎太郎,中野祐司,東俊行,今井誠,柴田裕美,土田秀次,伊藤秋男
Organizer
日本物理学会 2012 年年次大会
Place of Presentation
関西学院大学,西宮市
Year and Date
20120324-27
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