The Institute of Scientific and Industrial Research, Osaka University


LAST UPDATE 2018/06/04

  • 研究者氏名
    Researcher Name

    藤乗幸子 Sachiko TOJO
    助教 Assistant Professor
  • 所属
    Professional Affiliation

    The Institute of Scientific and Industrial Research, Osaka University

    Research Laboratory for Quantum Beam Science
  • 研究キーワード
    Research Keywords

    Radiation Chemistry
    Radical Ion
    Pulse Radiolysis
    Time-Resolved Spectroscopy
Research Subject
Development of novel function and mechanism on quantum-beam induced reaction

研究の背景 Background


Electron beam pulse radiolysis transient absorption is very excellent as a method for analyzing the reaction process and reactive intermediate of quantum beam-induced reaction. The structure and reactivity of radical ions based on quantum beam induced has been investigated by nano-second time-resolved absorption during electron pulse radiolysis. By employing combined electron pulse and laser pulse, various unique reactions occur from higher excited of radical ion with higher reactivity. As a development of combined electron pulse and laser pulse, pulse radiolysis time-resolved resonance Raman spectroscopy has been created.

研究の目標 Outcome


The new pulse radiolysis system of time-resolved vibrational spectroscopy and diffuse reflectance spectroscopy during electron beam has been developed and applied to functional materials. My interest is focused on development of improvement of nanosecond pulse radiolysis system and establishment methods to improve performance of time-space controlled reactive intermediate of quantum beam-induced reaction. I am under way with respect to developments of beam-controlled biomaterials, functional molecules and new materials.

研究図Research Figure

Fig.1. L-band electron linac nano-second time-resolved resonance Raman spectroscopy system. Fig.2. ns-TR3 spectrum observed at 500 ns after an 8-ns electron pulse during the pulse radiolysis of 4-Substituted thioanisoles (0.5 mM) in N2O-saturated aqueous solution containing NaBr (100 mM). Probe: 532 nm.

文献 / Publications

RSC Adv. 6, 109334-109339 (2016). Bull. Chem. Soc. Jpn. 89, 798-803 (2016). ChemPlusChem, 80, 68-73 (2015). Int. J. Radiat. Biol., 90, 459-467 (2014).  J. Org. Chem., 78, 1887-1893 (2013). J. Org. Chem., 77, 4932-4938 (2012).