Y. Fujiwara

Research interests

Publications

• Degradation of fast-ion confinement depending on the neutral beam power in MHD quiescent LHD plasmas

  Nuclear Fusion · 2024 · 10.1088/1741-4326/ad3971

• Enhanced plasma performance in C-2W advanced beam-driven field-reversed configuration experiments

  Nuclear Fusion · 2024 · 10.1088/1741-4326/ad4536

• A comprehensive evaluation of the thermal neutron detection efficiency by a single crystal CVD diamond detector with a LiF thermal neutron converter

  Fusion Engineering and Design · 2022 · 10.1016/j.fusengdes.2022.113117

• Recent development of neutron and energetic-particle diagnostics for LHD deuterium discharges

  Journal of Instrumentation · 2022 · 10.1088/1748-0221/17/03/c03036

• Observation of significant Doppler shift in deuterium-deuterium neutron energy caused by neutral beam injection in the large helical device

  AAPPS bulletin · 2022 · 10.1007/s43673-022-00036-5

• Studies of energetic particle transport induced by multiple Alfvén eigenmodes using neutron and escaping energetic particle diagnostics in Large Helical Device deuterium plasmas

  Nuclear Fusion · 2022 · 10.1088/1741-4326/ac6f66

• Studies of energetic particle transport induced by multiple Alfvén eigenmodes using neutron and escaping energetic particle diagnostics in Large Helical Device deuterium plasmas

  Nuclear Fusion · 2022 · 10.1088/1741-4326/ac6f66

• Observation of significant Doppler shift in deuterium-deuterium neutron energy caused by neutral beam injection in the large helical device

  AAPPS bulletin · 2022 · 10.1007/s43673-022-00036-5

• Analysis of NB Fast-Ion Loss Mechanisms in MHD Quiescent LHD Plasmas

  Plasma and Fusion Research · 2021 · 10.1585/pfr.16.2402052

• Neutron energy spectrum measurement using CLYC7-based compact neutron emission spectrometer in the Large Helical Device

  Journal of Instrumentation · 2021 · 10.1088/1748-0221/16/12/c12025

• Characterization of the New Vertical Neutron Camera Designed for the Low Neutron Emission Rate Plasma in Large Helical Device

  Plasma and Fusion Research · 2021 · 10.1585/pfr.16.1402039

• A study of beam ion and deuterium–deuterium fusion-born triton transports due to energetic particle-driven magnetohydrodynamic instability in the large helical device deuterium plasmas

  Nuclear Fusion · 2021 · 10.1088/1741-4326/ac0d8a

• A study of beam ion and deuterium–deuterium fusion-born triton transports due to energetic particle-driven magnetohydrodynamic instability in the large helical device deuterium plasmas

  Nuclear Fusion · 2021 · 10.1088/1741-4326/ac0d8a

• Challenges toward improvement of deuterium-injection power in the Large Helical Device negative-ion-based NBIs

  Nuclear Fusion · 2021 · 10.1088/1741-4326/ac2d59

• Characterization of the New Vertical Neutron Camera Designed for the Low Neutron Emission Rate Plasma in Large Helical Device

  Plasma and Fusion Research · 2021 · 10.1585/pfr.16.1402039

• Fast-ion D alpha diagnostic with 3D-supporting FIDASIM in the Large Helical Device

  Nuclear Fusion · 2020 · 10.1088/1741-4326/abae84

• Spatial distribution of negative ion density near the plasma grid

  Review of Scientific Instruments · 2020 · 10.1063/1.5129705

• Energetic particle transport and loss induced by helically-trapped energetic-ion-driven resistive interchange modes in the Large Helical Device

  Nuclear Fusion · 2020 · 10.1088/1741-4326/ab6da0

• Transition between Isotope-Mixing and Nonmixing States in Hydrogen-Deuterium Mixture Plasmas

  Physical Review Letters · 2020 · 10.1103/physrevlett.124.025002

• Studies of the fast ion confinement in the Large Helical Device by using neutron measurement and integrated codes

  Journal of Plasma Physics · 2020 · 10.1017/s0022377820000525

• Thermal neutron measurement by single crystal CVD diamond detector applied with the pulse shape discrimination during deuterium plasma experiment in LHD

  Fusion Engineering and Design · 2020 · 10.1016/j.fusengdes.2020.112063

• Progress in modelling fast-ion D-alpha spectra and neutral particle analyzer fluxes using FIDASIM

  Plasma Physics and Controlled Fusion · 2020 · 10.1088/1361-6587/aba8d7

• Observation of clump structure in transported particle orbit using an upgraded neutral particle analyzer during TAE burst in LHD

  Nuclear Fusion · 2020 · 10.1088/1741-4326/ab7890

• Spatial distribution of negative ion density near the plasma grid

  Review of Scientific Instruments · 2020 · 10.1063/1.5129705

• Performance of the newly installed vertical neutron cameras for low neutron yield discharges in the Large Helical Device

  Review of Scientific Instruments · 2020 · 10.1063/5.0010302

• Performance of the newly installed vertical neutron cameras for low neutron yield discharges in the Large Helical Device

  Review of Scientific Instruments · 2020 · 10.1063/5.0010302

• Enhancement of an E parallel B type neutral particle analyzer with high time resolution in the Large Helical Device

  Journal of Instrumentation · 2020 · 10.1088/1748-0221/15/02/c02021

• Extension of high power deuterium operation of negative ion based neutral beam injector in the large helical device

  Review of Scientific Instruments · 2019 · 10.1063/1.5128529

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

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

• Evaluation of Neutron Emission Rate with FIT3D-DD Code in Large Helical Device

  Plasma and Fusion Research · 2019 · 10.1585/pfr.14.3402126

• Evaluation of an Energetic Particle Profile Using a Tangential-FIDA Diagnostic in the Large Helical Device

  Plasma and Fusion Research · 2019 · 10.1585/pfr.14.3402129

• Development of NPA array using single crystal CVD diamond detectors

  Journal of Instrumentation · 2019 · 10.1088/1748-0221/14/08/c08002

• Analysis of Energetic Particle Confinement in LHD Using Neutron Measurement and Simulation Codes

  Plasma and Fusion Research · 2019 · 10.1585/pfr.14.3402075

• Energetic ion confinement studies using comprehensive neutron diagnostics in the Large Helical Device

  Nuclear Fusion · 2019 · 10.1088/1741-4326/ab14bc

• Extension of high power deuterium operation of negative ion based neutral beam injector in the large helical device

  Review of Scientific Instruments · 2019 · 10.1063/1.5128529

• Verification of Carbon Density Profile Measurements with Charge Exchange Spectroscopy Using Hydrogen and Deuterium Neutral Beams

  Plasma and Fusion Research · 2019 · 10.1585/pfr.14.1402079

• Exploring deuterium beam operation and the behavior of the co-extracted electron current in a negative-ion-based neutral beam injector

  Nuclear Fusion · 2019 · 10.1088/1741-4326/ab0fca

• 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

• First results of deuterium beam operation on neutral beam injectors in the large helical device

  AIP conference proceedings · 2018 · 10.1063/1.5053331

• First results of deuterium beam operation on neutral beam injectors in the large helical device

  AIP conference proceedings · 2018 · 10.1063/1.5053331

• Efficient triplet–triplet annihilation upconversion in binary crystalline solids fabricated via solution casting and operated in air

  Materials Horizons · 2016 · 10.1039/c6mh00413j

• Observations of multiple stationary striation phenomena in an atmospheric pressure neon plasma jet

  Japanese Journal of Applied Physics · 2015 · 10.7567/jjap.55.010301

• Double Alkylene-Strapped Diphenylanthracene as a Photostable and Intense Solid-State Blue-Emitting Material

  The Journal of Organic Chemistry · 2013 · 10.1021/jo302621k

• New transmission simulation of EA-modulator integrated DFB-lasers considering the facet reflection-induced chirp

  IEEE Photonics Technology Letters · 1997 · 10.1109/68.556080

Current projects

No projects listed.