T. Oishi

Research interests

Publications

• Observation of tungsten emission spectra up to W 46+ ions in the Large Helical Device and contribution to the study of high-Z impurity transport in fusion plasmas

  Nuclear Fusion · 2024 · 10.1088/1741-4326/ad6c5d

• Observation and Identification of W19+-W23+ Spectra in the EUV Wavelength Region in the Vicinity of 200Å

  Plasma and Fusion Research · 2024 · 10.1585/pfr.19.1402022

• Collisional-Radiative modeling of unresolved transition array spectra near 200 Å from W17+-W25+ emissions for diagnostics of ITER edge plasma

  Nuclear Materials and Energy · 2024 · 10.1016/j.nme.2024.101740

• A reduced-turbulence regime in the Large Helical Device upon injection of low-Z materials powders

  Nuclear Fusion · 2023 · 10.1088/1741-4326/acd465

• EUV/VUV Spectroscopy for the Study of Carbon Impurity Transport in Hydrogen and Deuterium Plasmas in the Edge Stochastic Magnetic Field Layer of Large Helical Device

  Plasma · 2023 · 10.3390/plasma6020021

• Spatial Profiles of NeVI-NeX Emission in ECR-Heated Discharges of the Large Helical Device with Divertor Detachment Induced by RMP Application and Ne Impurity Seeding

  Plasma and Fusion Research · 2022 · 10.1585/pfr.17.2402022

• Indirect energy transfer channel between fast ions via nuclear elastic scattering observed on the large helical device

  Physics of Plasmas · 2022 · 10.1063/5.0097720

• Observation of a reduced-turbulence regime with boron powder injection in a stellarator

  Nature Physics · 2022 · 10.1038/s41567-021-01460-4

• Experimental study on boron distribution and transport at plasma-facing components during impurity powder dropping in the Large Helical Device

  Nuclear Fusion · 2022 · 10.1088/1741-4326/ac9ac6

• Real-time wall conditioning and recycling modification utilizing boron and boron nitride powder injections into the Large Helical Device

  Nuclear Fusion · 2022 · 10.1088/1741-4326/ac6ff5

• Assessment of W density in LHD core plasmas using visible forbidden lines of highly charged W ions

  Nuclear Fusion · 2021 · 10.1088/1741-4326/ac22d1

• Progress of tungsten spectral modeling for ITER edge plasma diagnostics based on tungsten spectroscopy in LHD

  Nuclear Materials and Energy · 2021 · 10.1016/j.nme.2021.100923

• Isotope effects on transport in LHD

  Plasma Physics and Controlled Fusion · 2021 · 10.1088/1361-6587/abffb6

• Simultaneous Observation of Tungsten Spectra of W0 to W46+ Ions in Visible, VUV and EUV Wavelength Ranges in the Large Helical Device

  Atoms · 2021 · 10.3390/atoms9030069

• Line identification of boron and nitrogen emissions in extreme- and vacuum-ultraviolet wavelength ranges in the impurity powder dropping experiments of the Large Helical Device and its application to spectroscopic diagnostics

  Plasma Science and Technology · 2021 · 10.1088/2058-6272/abfd88

• Effect of nuclear elastic scattering on the D(d,n)3He fusion reactivity induced by energetic protons observed in the large helical device

  Nuclear Fusion · 2021 · 10.1088/1741-4326/ac13e6

• Identification of forbidden emission lines from highly ionized tungsten ions in VUV wavelength range in LHD for ITER edge plasma diagnostics

  Nuclear Materials and Energy · 2021 · 10.1016/j.nme.2021.100932

• Qualitative Improvement of Zeff Diagnostic Based on Visible Bremsstrahlung Profile Measurement by Changing Observation Cross Section in LHD

  Plasma and Fusion Research · 2021 · 10.1585/pfr.16.2402072

• EUV and VUV Spectra of NeIII-NeX Line Emissions Observed in the Impurity Gas-Puffing Experiments of the Large Helical Device

  Plasma and Fusion Research · 2021 · 10.1585/pfr.16.2402006

• Evaluation of Fe XIV Intensity Ratio for Electron Density Diagnostics by Laboratory Measurements

  Atoms · 2021 · 10.3390/atoms9030060

• Fast deuteron diagnostics using visible light spectra of 3He produced by deuteron–deuteron reaction in deuterium plasmas

  Review of Scientific Instruments · 2021 · 10.1063/5.0034683

• Measurement of Anisotropic Electron Velocity Distribution Function in LHD by Polarization Spectroscopy

  Plasma and Fusion Research · 2021 · 10.1585/pfr.16.2402029

• Simultaneous Observation of Silicon and Boron Impurity Behaviors in the Core Region of a Mid-Density LHD Plasma

  Plasma and Fusion Research · 2021 · 10.1585/pfr.16.1202094

• Observation of line emissions from Ni-like W 46 + ions in wavelength range of 7–8 Å in the Large Helical Device

  Physica Scripta · 2020 · 10.1088/1402-4896/abd0ba

• First impurity powder injection experiments in LHD

  Nuclear Materials and Energy · 2020 · 10.1016/j.nme.2020.100842

• The isotope effect on impurities and bulk ion particle transport in the Large Helical Device

  Nuclear Fusion · 2019 · 10.1088/1741-4326/ab0e41

• Quantitative analysis on tungsten spectra of W6+ to W45+ ions

  Journal of Physics Conference Series · 2019 · 10.1088/1742-6596/1289/1/012005

• Carbon impurities behavior and its impact on ion thermal confinement in high-ion-temperature deuterium discharges on the Large Helical Device

  Plasma Physics and Controlled Fusion · 2018 · 10.1088/1361-6587/aac06c

• Realization of high T i plasmas and confinement characteristics of ITB plasmas in the LHD deuterium experiments

  Nuclear Fusion · 2018 · 10.1088/1741-4326/aad87e

• Component investigation of ionization stages on tungsten unresolved transition array spectra for plasma diagnostics based on space-resolved extreme-ultra violet spectroscopy in large helical device

  Journal of Applied Physics · 2017 · 10.1063/1.5003447

• Extension of operational regime in high-temperature plasmas and effect of ECRH on ion thermal transport in the LHD

  Nuclear Fusion · 2017 · 10.1088/1741-4326/aa754b

• Extension of the operational regime of the LHD towards a deuterium experiment

  Nuclear Fusion · 2017 · 10.1088/1741-4326/aa7fc2

• Observation of W IV–W VII line emissions in wavelength range of 495–1475 Å in the large helical device

  Physica Scripta · 2016 · 10.1088/0031-8949/91/2/025602

• Investigation of ion and electron heat transport of high- T e ECH heated discharges in the large helical device

  Plasma Physics and Controlled Fusion · 2016 · 10.1088/0741-3335/58/4/045004

• EMC3-EIRENE modelling of edge impurity transport in the stochastic layer of the large helical device compared with extreme ultraviolet emission measurements

  Nuclear Fusion · 2016 · 10.1088/0029-5515/56/6/066005

• Integrated discharge scenario for high-temperature helical plasma in LHD

  Nuclear Fusion · 2015 · 10.1088/0029-5515/55/11/113020

• Space-resolved extreme ultraviolet spectroscopy free of high-energy neutral particle noise in wavelength range of 10–130 Å on the large helical device

  Review of Scientific Instruments · 2014 · 10.1063/1.4872384

• Space-resolved 3 m normal incidence spectrometer for edge impurity diagnostics in the large helical device

  Applied Optics · 2014 · 10.1364/ao.53.006900

• A study of tungsten spectra using large helical device and compact electron beam ion trap in NIFS

  AIP conference proceedings · 2013 · 10.1063/1.4815848

• Effective screening of iron impurities in the ergodic layer of the Large Helical Device with a metallic first wall

  Nuclear Fusion · 2013 · 10.1088/0029-5515/53/9/093017

• Bispectral Analysis of Harmonic Oscillations Measured using Beam Emission Spectroscopy and Magnetic Probes in CHS

  Plasma and Fusion Research · 2008 · 10.1585/pfr.3.s1010

• Diagnostics of Recombining Plasmas in Divertor Simulator MAP-II

  プラズマ・核融合学会誌 · 2005 · 10.1585/jspf.81.810

• Experimental study of negative ion profiles in H2-MAR plasmas in divertor simulator MAP-II

  Journal of Nuclear Materials · 2005 · 10.1016/j.jnucmat.2004.10.142

• Beam emission spectroscopy measurement for density fluctuations in compact helical system

  Review of Scientific Instruments · 2004 · 10.1063/1.1794846

• Edge transport barrier formation in compact helical system

  Plasma Physics and Controlled Fusion · 2004 · 10.1088/0741-3335/46/5a/012

• Experimental investigations on hydrocarbon-enhanced MAR processes in low temperature plasma in divertor simulator MAP-II

  Journal of Nuclear Materials · 2003 · 10.1016/s0022-3115(02)01420-4

• Transition of Edge Particle Transport in CHS

  プラズマ・核融合学会誌 · 2003 · 10.1585/jspf.79.977

Current projects

No projects listed.