Picosecond pulse radiolysis system and its applications in antioxidant studies

WANG Wenfeng; YAO Side; MIAO Jinling; ZHAO Hongwei; ZHU Hongping

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Picosecond pulse radiolysis system and its applications in antioxidant studies

Radiation Chemistry | 更新时间：2023-03-30

- Picosecond pulse radiolysis system and its applications in antioxidant studies
- Journal of Radiation Research and Radiation Processing Vol. 23, Issue 2, Pages: 79(2005)
- 作者机构：
  
  1.中国科学院上海应用物理研究所　上海　201800
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WANG Wenfeng, YAO Side, MIAO Jinling, et al. Picosecond pulse radiolysis system and its applications in antioxidant studies. [J]. Journal of Radiation Research and Radiation Processing 23(2):79(2005)
DOI：

WANG Wenfeng, YAO Side, MIAO Jinling, et al. Picosecond pulse radiolysis system and its applications in antioxidant studies. [J]. Journal of Radiation Research and Radiation Processing 23(2):79(2005) DOI：

摘要

20世纪60代出现了微秒级脉冲辐解技术，开始了快速反应动力学的研究。其重要发现之一是溶剂化电子，它证实了人们早先的推测，并极大地促进了化学反应机理研究。随着加速器与电子学技术的发展，随后出现了纳秒、皮秒与飞秒级脉冲辐解装置。虽然纳秒时间分辨仍然是研究凝聚态化学反应机理的有效的手段，但在观察更快的化学反应和过程时，如超激发态、分子分裂和分子内电荷传递等过程，必须借助更快的时间分辨研究。我所于1990年建立了我国第一个纳秒级电子脉冲辐解装置，基于加速器技术与动态化学研究的良好基础，我所正在研制皮秒脉冲电子束装置，以将我国的脉冲辐解时间分辨研究推进到皮秒级水平，推动我国在自由基生物学、环境科学、高分子材料科学等领域的相关研究。

Abstract

Based on establishing the nanosecond pulse radiolysis system in 1990 and chemical reaction dynamics studies with the system, a picosecond pulse radiolysis system has been proposed and is under installment at Shanghai Institute of Applied Physics. The paper gives a brief introduction to the ps pulse radiolysis system and its applications, especially in antioxidant studies.

关键词

脉冲辐解抗氧化剂动力学自由基

Keywords

Pulse radiolysisAntioxidantKineticsFree radical

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