A5058063274- Muon and positron interactions and applications
- X-ray Spectroscopy and Fluorescence Analysis
- Advanced X-ray Imaging Techniques
- Nuclear Physics and Applications
- Particle Detector Development and Performance
- Ion-surface interactions and analysis
- Neuroinflammation and Neurodegeneration Mechanisms
- Fusion materials and technologies
- Polymer Nanocomposite Synthesis and Irradiation
- Plasma Diagnostics and Applications
- Atomic and Subatomic Physics Research
- Glass properties and applications
- Radiation Detection and Scintillator Technologies
- Real-time simulation and control systems
- Advanced X-ray and CT Imaging
- Genomics, phytochemicals, and oxidative stress
- Particle Accelerators and Free-Electron Lasers
- Intermetallics and Advanced Alloy Properties
- Endoplasmic Reticulum Stress and Disease
- Atomic and Molecular Physics
Osaka Metropolitan University
2023
Institute for Molecular Science
2022
National Institutes of Natural Sciences
2022
The Graduate University for Advanced Studies, SOKENDAI
2022
Japan Atomic Energy Agency
2022
Nagoya University
2022
Osaka Prefecture University
2011-2020
University of Hyogo
2018
Tokyo University of Science
2004
Abstract UVSOR is a Japanese low-energy synchrotron light source that has been operational since 1983. It 750 MeV electron beam energy and circumference of 53 m. The machine undergone two major upgrades now called UVSOR-III, with moderately small emittance 17 nm·rad operated in the top-up mode at 300 mA. six undulators. Three in-vacuum undulators provide high-brightness VUV-SX to beamlines BL3U, BL4U, BL6U. BL3U BL4U are actively used for chemistry life sciences using situ operando...
Activation of glia has been observed in various neurodegenerative diseases. Excessive production nitric oxide (NO), as a consequence increased inducible synthase (iNOS) glia, contributes to the neurodegeneration. The enhancement intracellular stresses such oxidative stress and endoplasmic reticulum (ER) also implicated several disorders. During search for compounds that regulate ER stress, dibenzoylmethane derivative, 2,2′-dimethoxydibenzoylmethane (DBM 14-26), was identified novel...
In conventional positron annihilation spectroscopy using radioisotopes, source contributions are unavoidable since positrons annihilate in the material covering radioisotopes. Part of within radioisotopes even when deposited directly on a sample. Gamma-ray-induced makes it possible to measure only spectra sample without generated inside from gamma rays by pair production and same this study, new age-momentum correlation measurement system ultrashort pulsed is developed. The with an energy...
Effects of dual implantation with Ag and Ni ions on the optical absorption silica glass were investigated. The surface plasmon spectrum after does not correspond to sum for only ion that implantation. experimental result suggests morphology and/or composition nanoparticles changed by subsequent Furthermore, positron annihilation coincidence Doppler broadening profile implanted sample also shows synthesized is affected
We have developed a new positron annihilation measurement system via electron-positron pair creation using by laser Compton scattering (LCS) gamma beam direct implantation into bulk materials at NewSUBARU synchrotron radiation facility, LASTI, University of Hyogo, Japan. LCS is easy to control energy, and its energy quasi-monochromatic high directivity. These parameters are determined wavelength electron kinetic energy. In this study, maximum 16.9 MeV generation Nd:YVO4 (wavelength 1064 nm)...
The laser Compton scattering gamma ray beamline at the synchrotron light facility NewSUBARU supplies a quasi-monochromatic, polarized, high-energy photon beam. A flux of more than 107 photons/s is generated energy range 1 - 73 MeV. Emission distributions fast neutrons from different target materials were measured as function polarization angle linear polarized gamma-ray beam using time-of-flight method with plastic scintillators. neutron consistent previous theoretical result. relatively...
We have developed a Doppler broadening measurement Gamma-induced Positron Spectroscopy (GiPS) system, and performed demonstration for cm size Zr based amorphous crystallized alloys using laser Compton scattering (LCS) gamma-ray beam with maximum energy of 16.9 MeV at the NewSUBARU synchrotron radiation facility, Hyogo, Japan. This method makes use positrons generated inside sample by implantation highly energetic photons. GiPS can be non-destructive bulk material in air. In this study,...
We have investigated the hydrogen trapping behavior in B2 ordered Fe-50%Al alloy with electron irradiation followed by implantation using positron annihilation techniques, X-ray diffraction and thermal desorption spectrometry (TDS). Positron lifetime coincidence Doppler broadening measurement results showed that VFe type Fe-Al alloys are dominantly introduced low energy (2 MeV) irradiation, more complex vacancy defects formed high (8 irradiation. The result of TDS atoms trapped defects,...