G. Motojima

Research interests

Publications

• The new ITER baseline, research plan and open R&D issues

  Plasma Physics and Controlled Fusion · 2025 · 10.1088/1361-6587/add9c9

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

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

• 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

• Particle control in long-pulse discharge using divertor pumping in LHD

  Physica Scripta · 2022 · 10.1088/1402-4896/ac5269

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

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

• Plasma–surface interaction in the stellarator W7-X: conclusions drawn from operation with graphite plasma-facing components

  Nuclear Fusion · 2021 · 10.1088/1741-4326/ac3508

• Isotope effects on transport in LHD

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

• Overview of the TJ-II stellarator research programme towards model validation in fusion plasmas

  Nuclear Fusion · 2021 · 10.1088/1741-4326/ac2ca1

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

  Physical Review Letters · 2020 · 10.1103/physrevlett.124.025002

• Improved performance of electron cyclotron resonance heating by perpendicular injection in the Large Helical Device

  Nuclear Fusion · 2020 · 10.1088/1741-4326/abc977

• Extended investigations of isotope effects on ECRH plasma in LHD

  Plasma Physics and Controlled Fusion · 2019 · 10.1088/1361-6587/ab5bae

• Isotope effects on energy, particle transport and turbulence in electron cyclotron resonant heating plasma of the Large Helical Device

  Nuclear Fusion · 2019 · 10.1088/1741-4326/ab4237

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

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

• Preparation and Commissioning for the LHD Deuterium Experiment

  IEEE Transactions on Plasma Science · 2018 · 10.1109/tps.2018.2825423

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

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

• Current Status of Large Helical Device and Its Prospect for Deuterium Experiment

  Fusion Science & Technology · 2017 · 10.1080/15361055.2017.1335145

• Observation of the ballooning mode that limits the operation space of the high-density super-dense-core plasma in the LHD

  Nuclear Fusion · 2017 · 10.1088/1741-4326/aa6c1e

• Progress of long pulse discharges by ECH in LHD

  Nuclear Fusion · 2016 · 10.1088/0029-5515/56/4/046005

• Enhancement of helium exhaust by resonant magnetic perturbation fields at LHD and TEXTOR

  Nuclear Fusion · 2016 · 10.1088/0029-5515/56/10/106011

• Overview of MAST results

  Nuclear Fusion · 2015 · 10.1088/0029-5515/55/10/104008

• Development of impurity seeding and radiation enhancement in the helical divertor of LHD

  Nuclear Fusion · 2015 · 10.1088/0029-5515/55/8/083016

• Development of impurity seeding and radiation enhancement in the helical divertor of LHD

  Nuclear Fusion · 2015 · 10.1088/0029-5515/55/8/083016

• Overview of transport and MHD stability study: focusing on the impact of magnetic field topology in the Large Helical Device

  Nuclear Fusion · 2015 · 10.1088/0029-5515/55/10/104018

• Flow damping due to stochastization of the magnetic field

  Nature Communications · 2015 · 10.1038/ncomms6816

• Plasma wall interaction in long-pulse helium discharge in LHD – Microscopic modification of the wall surface and its impact on particle balance and impurity generation

  Journal of Nuclear Materials · 2014 · 10.1016/j.jnucmat.2014.12.062

• Global helium particle balance in LHD

  Journal of Nuclear Materials · 2014 · 10.1016/j.jnucmat.2014.10.081

• Stabilization of energetic-ion-driven MHD modes by ECCD in Heliotron J

  Nuclear Fusion · 2013 · 10.1088/0029-5515/53/11/113041

• Extension of operation regimes and investigation of three-dimensional currentless plasmas in the Large Helical Device

  Nuclear Fusion · 2013 · 10.1088/0029-5515/53/10/104015

• Initial experiments towards edge plasma control with a closed helical divertor in LHD

  Nuclear Fusion · 2013 · 10.1088/0029-5515/53/6/063014

• Steady-state operation using a dipole mode ion cyclotron heating antenna and 77 GHz electron cyclotron heating in the Large Helical Device

  Nuclear Fusion · 2013 · 10.1088/0029-5515/53/6/063017

• Initial experiments towards edge plasma control with a closed helical divertor in LHD

  Nuclear Fusion · 2013 · 10.1088/0029-5515/53/6/063014

• Extension of operation regimes and investigation of three-dimensional currentless plasmas in the Large Helical Device

  Nuclear Fusion · 2013 · 10.1088/0029-5515/53/10/104015

• Development of net-current free heliotron plasmas in the Large Helical Device

  Nuclear Fusion · 2009 · 10.1088/0029-5515/49/10/104015

• Extension of Improved Particle and Energy Confinement Regime in the Core of LHD Plasma

  Plasma and Fusion Research · 2009 · 10.1585/pfr.4.027

• Control of non-inductive current in Heliotron J*

  Nuclear Fusion · 2007 · 10.1088/0029-5515/47/8/039

• H-mode confinement of Heliotron J

  Nuclear Fusion · 2005 · 10.1088/0029-5515/45/12/011

Current projects

No projects listed.