Study on heavy-ion beam time-resolved absorption spectroscope
重离子束时间分辨吸收光谱仪的研究
基本信息
- 批准号:17560746
- 负责人:
- 金额:$ 2.11万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2005
- 资助国家:日本
- 起止时间:2005 至 2006
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The study of the primary process of heavy-ion beam induced radiation chemistry is very important for opening the wide application field of ion radiation. A new heavy-ion beam pulse radiolysis based on absorption spectroscopy was developed and used to study the behavior of radicals generated by heavy-ion beam radiation.(1)Development of heavy-ion beam pulse radiolysisFor heavy-ion beams, there are many difficulties to the absorption spectroscopy, such as the low intensity in ion beam, the penetration of the ion beam into material, the light source, and so on. To overcome the difficulties, we developed at first a heavy-ion-pulse radiolysis based on an advanced analyzing-light produced by ion beam radiation in a scintillator. The time resolution of the pulse radiolysis was achieved to be nano/picosecond time region by using a single-photon-counting technique.(2)Study of primary process of heavy-ion beam induced radiation chemistryThe transient absorption kinetics of radicals or short-lived species generated by heavy-ion-beam radiation (such as 220MeV 12C^<5+> ion beam) was measured successfully on nano/picosecond time scale by using the heavy-ion beam pulse radiolysis. The high linear-energy-transfer (LET) effects of the heavy-ion beam on materials were studied and compared with the low LET beam radiation, such as the electron beam radiation.
重离子束诱导辐射化学初级过程的研究,对于拓宽离子辐射的应用领域具有重要意义。建立了一种新的基于吸收光谱的重离子束脉冲辐解技术,用于研究重离子束辐照产生的自由基的行为。(1)重离子束脉冲辐解技术的发展对于重离子束而言,由于其吸收光谱技术存在着束流强度低、穿透性差、光源等问题,我们首先利用闪烁体中离子束辐射产生的分析光,发展了重离子束脉冲辐解技术。利用单光子计数技术,脉冲辐解的时间分辨率达到了纳秒/皮秒量级。(2)重离子束辐照化学初级过程的研究利用重离子束脉冲辐解技术,成功地在纳秒/皮秒时间尺度上测量了重离子束(如220 MeV ~(12)C ^<5+>离子束)辐照产生的自由基或短寿命物种的瞬态吸收动力学。研究了重离子束对材料的高线性能量传递效应,并与电子束等低线性能量传递效应进行了比较。
项目成果
期刊论文数量(27)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Decomposition of p-nonylphenols in water and elimination of their estrogen activities by ^<60> Co g-ray irradiation
^<60>Co g 射线照射对水中对壬基酚的分解及其雌激素活性的消除
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:A.Kimura;M.Taguchi;Y.Ohtani;M.Takigami;Y.Shimada;T.Kojima;H.Hiratsuka;H.Namba
- 通讯作者:H.Namba
Pulse radiolysis based on a femtosecond electron beam and a femtosecond laser light with double-pulse injection technique
基于飞秒电子束和飞秒激光的双脉冲注入技术的脉冲辐射分解
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:J. Yang;T. Kondoh;T. Kozawa;Y. Yoshida;S. Tagawa
- 通讯作者:S. Tagawa
Yield of OH radicals in water under heavy ion irradiation-Dependence on mass, specific energy and elapsed time
重离子照射下水中 OH 自由基的产量 - 与质量、比能量和经过时间的关系
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:M. Taguchi;T. Kojima
- 通讯作者:T. Kojima
Femtosecond single electron bunch generation by rotating longtudinal bunch phase spece in magnetic field
通过在磁场中旋转长束相位规范产生飞秒单电子束
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:J.Yang;T.Kondoh;K.Kan;T.Kozawa;Y.Yoshida;S.Tagawa
- 通讯作者:S.Tagawa
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YANG Jinfeng其他文献
YANG Jinfeng的其他文献
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{{ truncateString('YANG Jinfeng', 18)}}的其他基金
Study of femtosecond time-resolved electron microscopy
飞秒时间分辨电子显微镜研究
- 批准号:
22246127 - 财政年份:2010
- 资助金额:
$ 2.11万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Study on high-LET effect by heavy-ion-beam pulse radiolysis
重离子束脉冲辐解高LET效应研究
- 批准号:
19560842 - 财政年份:2007
- 资助金额:
$ 2.11万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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