Study of Primary Processes of Radiation Chemistry by using Laser-Synchronized Pulse Radiolysis

激光同步脉冲辐射分解辐射化学初级过程的研究

• 批准号: 09680482
• 负责人: YOSHIDA Yoichi
• 金额: $ 0.51万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09680482/
• 关键词: Primary Processes; Picosecond Pulse Radiolysis; Alkane; Geminate Ion Recombination; Electron; Cation Radical; Smoluchowski equation; Charge Transfer Reaction; 放射線化学初期過程; フェムト秒レーザー

Laser synchronized Pulse radiolysis of liquid alkanes was done.The primary processes of the radiation chemistry on electrons, cation radicals, and excited states has been elucidated.Improvement of the laser synchronized picosecond pulse radiolysis systemTo elucidate the time-dependent behavior of the short-lived intermediates, the laser synchronized picosecond pulse radiolysis system has been improved.By using the continuum light production, the wide wavelength region was covered.Dynamics of electrons, cation radicals, and excited statesThe simulation code for the geminate kinetics based on the Smoluchowski equation has been developed.The geminate decays were analyzed by using the code.The initial spatial distributions, diffusion coefficients, and reaction rates were decided.Mechanisms of the charge transfer reactionFrom the analysis of the geminate decays, the initial spatial distribution were changed by using some solutes, such as CCI_4. This caused the charge transfer reaction should occur between the pre-thermal electron and the solute.

完成了液体烷烃的激光同步脉冲辐解。阐明了电子、阳离子自由基和激发态的辐射化学的主要过程。激光同步皮秒脉冲辐解系统的改进阐明了短寿命的时间依赖性行为中间体，改进了激光同步皮秒脉冲辐解系统。利用连续光产生，覆盖了宽波长区域。电子、阳离子自由基和自由基的动力学开发了基于Smoluchowski方程的孪生动力学模拟代码。使用该代码对孪生衰变进行了分析。确定了初始空间分布、扩散系数和反应速率。电荷转移反应的机理从分析在孪生衰变过程中，使用一些溶质（例如CCI_4）改变了初始空间分布。这导致预热电子和溶质之间应该发生电荷转移反应。

项目成果

K.Mochida, R.Hata, H.Chiba, S.Seki, Y.Yoshida and S.Tagawa: "Radical Anions of Oligogermanes, Me (Me2Ge) nMe (n=2,3,5 and 10) Generated by Pulse Radiolysis." Chemistry Letter. 263-264 (1998)

K.Mochida、R.Hata、H.Chiba、S.Seki、Y.Yoshida 和 S.Takawa：“脉冲辐射分解产生的寡锗烷自由基阴离子 Me (Me2Ge) nMe (n=2,3,5 和 10)

S.Seki, K.Kanzaki, Y.Kunimi, S.Tagawa, Y.yoshida, et al.: "LET Effects of ion beam irradiation on poly (di-n-hexylsilane)." Radiation Physics and Chemistry. 50. 423-427 (1997)

S.Seki、K.Kanzaki、Y.Kunimi、S.Takawa、Y.yoshida 等人：“离子束照射对聚（二正己基硅烷）的 LET 效应”。

S.Seki,K.Kanzaki,Y.Kunimi,S.Tagawa,Y.Yoshida,et al.: "Positive-negative inversion of silicon based resist materials : poly) di-n-hexylsilane) for ion beam irradiation." Japanese Journal of Applied Physics. 36. 5361-5364 (1997)

S.Seki，K.Kanzaki，Y.Kunimi，S.Takawa，Y.Yoshida，等：“用于离子束照射的硅基抗蚀剂材料的正负反转：聚）二正己基硅烷。”

K.Mochida,R.Hata,H.Chiba,S.Seki,Y.Yoshida and S.Tagawa: "Redical Anions of Oligogermanes,Me(Me2Ge)nMe(n=2,3,5 and 10)Generated by Pulse Radiolysis." Chemistry Letter. 263-264 (1998)

K.Mochida、R.Hata、H.Chiba、S.Seki、Y.Yoshida 和 S.Takawa：“脉冲辐射分解生成的寡锗烷的红色阴离子，Me(Me2Ge)nMe(n=2,3,5 和 10)

T.Kozawa,S.Nagahara,Y.Yoshida,S.Tagawa,T.Watanabe,Y.Yamashita: "Radiation-induced reactions of chemically amplified x-ray and electron beam resists on deprotection of t-butoxycarbonyl groups." Journal of Vacuum Science & Technology B. 15. 2582-2586 (1997)

T.Kozawa、S.Nagahara、Y.Yoshida、S.Takawa、T.Watanabe、Y.Yamashita：“化学放大 X 射线和电子束的辐射诱导反应抵抗叔丁氧基羰基的脱保护。”