All Stories

  1. Recent advances in plasma control and physics research in the large helical device
  2. Understanding of parameter dependence among the radiative collapse data in LHD plasmas with a causal discovery approach
  3. Plausible Model Improvement Utilizing the Information Obtained from Data Assimilation
  4. Neutron Spectroscopy in Perpendicular Neutral Beam Injection Deuterium Plasmas Using Newly Developed Compact Neutron Emission Spectrometers
  5. Data assimilation and control system for adaptive model predictive control
  6. Influence of the beam-beam collisions on the energetic particle distribution in large helical device
  7. Studies of energetic particle transport induced by multiple Alfvén eigenmodes using neutron and escaping energetic particle diagnostics in Large Helical Device deuterium plasmas
  8. ASTI: Data assimilation system for particle and heat transport in toroidal plasmas
  9. Parallel flow driven by electron cyclotron heating in the helically symmetric experiment
  10. Effects of electron cyclotron heating on the toroidal flow in LHD plasmas
  11. Time-resolved secondary triton burnup 14 MeV neutron measurement by a new scintillating fiber detector in middle total neutron emission ranges in deuterium large helical device plasma experiments
  12. Analysis of NB Fast-Ion Loss Mechanisms in MHD Quiescent LHD Plasmas
  13. Initial Results from High-Field-Side Transient CHI Start-Up on QUEST
  14. Magnetic Configuration and Heating Location Dependences of Toroidal Torques by Electron Cyclotron Heating in LHD
  15. Application of the Ensemble Kalman Smoother to Turbulent Transport Analysis in LHD Plasma
  16. Parametric Decay Wave Observation in HFS X-Mode Injection in QUEST
  17. Effect of the Pfirsch–Schlüter flow on the inboard/outboard asymmetry of the toroidal flow in LHD
  18. Data assimilation system based on integrated transport simulation of Large Helical Device plasma
  19. Isotope Effect on Energy Confinement Time and Thermal Transport in Neutral-Beam-Heated Stellarator-Heliotron Plasmas
  20. Simulation Study of Neutral Beam Injection Heating in the HSX Plasma
  21. Measurements of radial profile of hydrogen and deuterium density in isotope mixture plasmas using bulk charge exchange spectroscopy
  22. Evaluation of Neutron Emission Rate with FIT3D-DD Code in Large Helical Device
  23. Estimation of the <i>j </i>× <i>B </i>Force Produced by Electron Cyclotron Heating in HSX Plasma
  24. Feasibility Study of Neutral Beam Injection on Chinese First Quasi-Axisymmetric Stellarator (CFQS)
  25. Initial Results of Neutron Emission Profile Measurements in LHD Deuterium Plasmas
  26. Initial Results of Triton Burnup Study in the Large Helical Device
  27. Fast Ion Confinement Study by Neutron Emission Rate Measurement after Short Pulse NB Injection in the Large Helical Device
  28. Study of toroidal flow generation by ion cyclotron range of frequency minority heating in the Alcator C-Mod plasma
  29. Comparison of Ion Internal Transport Barrier Formation between Hydrogen and Helium Dominated Plasmas
  30. Estimations of Beam-Beam Fusion Reaction Rates in the Deuterium Plasma Experiment on LHD
  31. NBI Beam Ion Distributions in the Presence of Magnetic Islands in Helical Plasmas
  32. Simulation Study of Toroidal Flow Generation of Minority Ions by Local ICRF Heating
  33. Integrated discharge scenario for high-temperature helical plasma in LHD
  34. Effect of the RF wall conditioning on the high performance plasmas in the Large Helical Device
  35. Overview of transport and MHD stability study: focusing on the impact of magnetic field topology in the Large Helical Device
  36. Integrated transport simulations of high ion temperature plasmas of LHD
  37. Development of Momentum Conserving Monte Carlo Simulation Code for ECCD Study in Helical Plasmas
  38. Development of the Heating Scenarios to Achieve High-Ion Temperature Plasma in the Large Helical Device<sup> </sup>
  39. Integrated Particle Transport Simulation of NBI Plasmas in LHD
  40. Simulation Study of Energetic Triton Confinement in the D-D Experiment on LHD
  41. Impact of carbon impurities on the confinement of high-ion-temperature discharges in the Large Helical Device
  42. Extension of highTeregime with upgraded electron cyclotron resonance heating system in the Large Helical Device
  43. Physics analyses on the core plasma properties in the helical fusion DEMO reactor FFHR-d1
  44. Extension of high Te regime with upgraded ECRH system in the LHD
  45. Effect of Impurity Ions on NBI Heating in LHD Plasmas
  46. High Ion Temperature Plasmas using an ICRF Wall-Conditioning Technique in the Large Helical Device
  47. Integrated Heat Transport Simulation of Multi-Ion-Species Plasma in LHD
  48. Integration of Large-Scale Simulations and Numerical Modelling Tools in Close Link with the LHD Experiment
  49. Technical challenges in the construction of the steady-state stellarator Wendelstein 7-X
  50. Extension of operation regimes and investigation of three-dimensional currentless plasmas in the Large Helical Device
  51. Study ofα-particle confinement in an LHD-type heliotron reactor
  52. Extension of the operational regime in high-temperature plasmas and the dynamic-transport characteristics in the LHD
  53. Inter-machine validation study of neoclassical transport modelling in medium- to high-density stellarator-heliotron plasmas
  54. 3-D effects on viscosity and generation of toroidal and poloidal flows in LHD
  55. Effect of magnetic field configuration on parallel plasma flow during neutral beam injection in Heliotron J
  56. Formation of Electron-Root Radial Electric Field and its Effect on Thermal Transport in LHD High Te Plasma
  57. Development of Integrated Transport Analysis Suite for LHD Plasmas Towards Transport Model Validation and Increased Predictability
  58. Development of Transport Model in Reactor Plasmas based on LHD Experiment Scaling
  59. Development of a Nonlinear Collision Operator for GNET Code
  60. NBI Heating Analysis of Time-Development Plasma in LHD
  61. Simulation Study of ECCD by GNET with Momentum Conserving Collisional Operator
  62. Formularization of the confinement enhancement factor as a function of the heating profile for FFHR-d1 core plasma design
  63. Density fluctuation measurements using beam emission spectroscopy on Heliotron J
  64. Development of Integrated Transport Code, TASK3D, and Its Applications to LHD Experiment
  65. Measurement of Ion Temperature and Toroidal Rotation Velocity Using Charge Exchange Recombination Spectroscopy in Heliotron J
  66. Heat and momentum transport of ion internal transport barrier plasmas on the Large Helical Device
  67. Benchmarking of the mono-energetic transport coefficients—results from the International Collaboration on Neoclassical Transport in Stellarators (ICNTS)
  68. Erratum: “A convergence study for the Laguerre expansion in the moment equation method for neoclassical transport in general toroidal plasmas” [Phys. Plasmas 17, 082510 (2010)]
  69. Neoclassical electron transport calculation by using δf Monte Carlo method
  70. Neoclassical transport simulations for stellarators
  71. Study of α Particle Confinement in Helical Type Reactor by GNET Code
  72. Toroidal Flow Generation by the ICRF Minority Heating and RF Wave Field Profile Dependence
  73. Evaluation of Monte Carlo Calculation Accuracy for α Particle Confinement Analysis in Heliotron Reactors
  74. Simulation Study of ECCD in Helical Plasmas
  75. Study of Radial Diffusion of Energetic Ions by High-m Magnetic Perturbations Using DCOM Code
  76. Transport Study of LHD High-Beta Plasmas Based on Power Balance Analysis with TASK3D Code Module
  77. Application of beam emission spectroscopy to NBI plasmas of Heliotron J
  78. Fast ion charge exchange spectroscopy adapted for tangential viewing geometry in LHD
  79. Observation of Reversed-Shear Alfvén Eigenmodes Excited by Energetic Ions in a Helical Plasma
  80. A convergence study for the Laguerre expansion in the moment equation method for neoclassical transport in general toroidal plasmas
  81. Development of the Neoclassical Transport Module for the Integrated Simulation Code in Helical Plasmas
  82. Fast-Ion Response to Energetic-Particle-Driven MHD Activity in Heliotron J
  83. Optimization Study of ICRF Heating in the LHD and HSX Configurations
  84. Simulation Study of the MHD Stability Beta Limit in LHD by TASK3D
  85. Spontaneous toroidal rotation driven by the off-diagonal term of momentum and heat transport in the plasma with the ion internal transport barrier in LHD
  86. Effect of Halo Neutrals on Fast-Ion Charge Exchange Spectroscopy Measurements in LHD
  87. Evaluation of Fast-Ion Confinement Using a Radially Injected Neutral Beam in the LHD
  88. Physics of Heliotron J Confinement
  89. Turbulence Response in the High Ti Discharge of the LHD
  90. Development of net-current free heliotron plasmas in the Large Helical Device
  91. Shape effect of the outermost flux surface on effective helical ripple and zonal flow response in anL= 2 heliotron
  92. Simulation Study of Toroidal Shear Flow Generation by a Local ICRF Heating
  93. Fast ion charge exchange spectroscopy measurement using a radially injected neutral beam on the large helical device
  94. Web interface for plasma analysis codes
  95. Configuration Effects on Local Transport in High-Beta LHD Plasmas
  96. Density limit study focusing on the edge plasma parameters in LHD
  97. Development of a Hierarchy-Integrated Simulation Code for Toroidal Helical Plasmas, TASK3D
  98. Discriminating Acquisition of 15-MeV Protons from D-3He Fusion Reaction in LHD
  99. Effect of Ellipticity on Thermal Transport in ECH Plasmas in LHD
  100. Effect of Rotational Transform and Magnetic Shear on Confinement of Stellarators
  101. Electrostatic Potential Measurement by Using 6-MeV Heavy Ion Beam Probe on LHD
  102. Measurements of Micro-Turbulence in High Beta and High Density Regimes of LHD and Comparison with Resistive G-Mode Scaling
  103. Neoclassical Transport Properties in High-Ion-Temperature Hydrogen Plasmas in the Large Helical Device (LHD)
  104. Particle Transport and Fluctuation Characteristics around the Neoclassically Optimized Configuration in LHD
  105. Simulation Study of ICRF Wave Propagation and Absorption in 3-D Magnetic Configurations
  106. Study of Neoclassical Transport in LHD Plasmas by Applying the DCOM/NNW Neoclassical Transport Database
  107. Study on Poloidal and Toroidal Electric Field Generations by Electron Cyclotron Heating in a Helical Plasma
  108. Extended steady-state and high-beta regimes of net-current free heliotron plasmas in the Large Helical Device
  109. Core electron-root confinement (CERC) in helical plasmas
  110. Physical model assessment of the energy confinement time scaling in stellarators
  111. Steady-state operation and high energy particle production of MeV energy in the Large Helical Device
  112. Construction of Neoclassical Transport Database for Large Helical Device Plasma Applying Neural Network Method
  113. Development of Web Interfaces for Analysis Codes
  114. Impurity Transport Studies on LHD
  115. Stellarator Impurity STRAHL Code Development in NIFS
  116. Simulational study on losses of neutral beam-injected energetic ions via collisional ripple transport in the low aspect ratio helical system CHS
  117. Horizontal, vertical, and radial high-energy particle distribution measurement system in Large Helical Device
  118. Studies of fast-ion transport induced by energetic particle modes using fast-particle diagnostics with high time resolution in CHS
  119. A global simulation study of ICRF heating in the LHD
  120. Self-sustained detachment in the Large Helical Device
  121. Global confinement scaling for high-density plasmas in the Large Helical Device
  122. Density Regimes of Complete Detachment and Serpens Mode in LHD
  123. Experimental study of particle transport and density fluctuations in LHD
  124. Characterization of energy confinement in net-current free plasmas using the extended International Stellarator Database
  125. H-mode confinement of Heliotron J
  126. Effects of global MHD instability on operational high beta-regime in LHD
  127. Overview of confinement and MHD stability in the Large Helical Device
  128. High-ion temperature experiments with negative-ion-based neutral beam injection heating in Large Helical Device
  129. Temperature dependence of the thermal diffusivity in high-collisionality regimes in the large helical device
  130. Experimental studies of energetic-ion-driven MHD instabilities in Large Helical Device plasmas
  131. Extension and characteristics of an ECRH plasma in LHD
  132. Electron Pressure Profiles in High-Density Neutral Beam Heated Plasmas in the Large Helical Device
  133. Evaluation of energetic particle confinement using CXNPA with NB-blip experiments on Large Helical Device
  134. Two-dimensional scanning high-energy particle diagnostic system in Large Helical Device
  135. Energetic ion driven Alfvén eigenmodes in Large Helical Device plasmas with three-dimensional magnetic structure and their impact on energetic ion transport
  136. Observations of edge radial electric field transition in LHD plasmas
  137. Characteristics of transport in electron internal transport barriers and in the vicinity of rational surfaces in the Large Helical Device
  138. Formation of neoclassical internal transport barriers under various operational regimes on compact helical system
  139. Observation of pellet ablation behaviour on the large helical device
  140. Comparison of electron internal transport barriers in the large helical device and JT-60U plasmas
  141. Characteristics of sawtooth oscillations observed in the compact helical system
  142. Confinement characteristics of the quasi-axisymmetric stellarator CHS-qa
  143. Study of ripple-trapped proton behaviour in LHD by two line-of-sight measurements of fast neutrals
  144. Increased understanding of neoclassical internal transport barriers in CHS
  145. MHD instabilities and their effects on plasma confinement in Large Helical Device plasmas
  146. Radial electric field and transport near the rational surface and the magnetic island in LHD
  147. Observation of Helicity-Induced Alfvén Eigenmodes in Large-Helical-Device Plasmas Heated by Neutral-Beam Injection
  148. Recent advances in the LHD experiment
  149. Impurity transport model for the normal confinement and high density H-mode discharges in Wendelstein 7-AS
  150. Experimental study on ion temperature behaviours in ECH, ICRF and NBI H2, He and Ne discharges of the Large Helical Device
  151. Characteristics of Electron Heat Transport of Plasma with an Electron Internal-Transport Barrier in the Large Helical Device
  152. Impact of heat deposition profile on global confinement of NBI heated plasmas in the LHD
  153. Ion cyclotron range of frequencies heating and high-energy particle production in the Large Helical Device
  154. Effective radial Liapunov exponent for the radial diffusion of test electrons
  155. Formation of electron internal transport barriers by highly localized electron cyclotron resonance heating in the large helical device
  156. Confinement characteristics of high-energy ions produced by ICRF heating in the large helical device
  157. Sawtooth Oscillation in Current-Carrying Plasma in the Large Helical Device
  158. Formation of electron internal transport barrier and achievement of high ion temperature in Large Helical Device
  159. Statistical properties of the radial transport in the magnetic field with radially bounded stochastic region
  160. Recent results from the Large Helical Device
  161. Plasma performance and impurity behaviour in long pulse discharges on LHD
  162. Fueling efficiency of gas puffing on large helical device
  163. Neutralization loss of high energy particles in the plasma boundary of LHD
  164. Spatial resolved high-energy particle diagnostic system using time-of-flight neutral particle analyzer in large helical device
  165. Spatially resolved measurements of energetic neutral particle distributions in the Large Helical Device
  166. Analysis of Radial Electric Field Bifurcation in LHD Based on Neoclassical Transport Theory
  167. Neoclassical transport optimization of LHD
  168. Behaviour of ion temperature in electron and ion heating regimes observed with ECH, NBI and ICRF discharges of LHD
  169. Microinstability studies for the large helical device
  170. Optimization of ICRF heating in terms of confining magnetic field parameters in the LHD*
  171. Study of acceleration and confinement of high-energy protons during ICRF and NBI heating in LHD using a natural diamond detector
  172. Compatibility between high energy particle confinement and magnetohydrodynamic stability in the inward-shifted plasmas of the Large Helical Device
  173. Characterization of edge pressure in the Large Helical Device
  174. Bootstrap current analysis for neoclassical internal transport barrier discharge of CHS
  175. Favourable effect of methane discharges observed in LHD pellet shots
  176. Improvement of neoclassical ion thermal transport near the plasma edge in the electron root regime on LHD
  177. Transport of the plasma with neoclassical internal transport barrier on CHS
  178. Observation of flow reversal in plasmas with a neoclassical internal transport barrier in CHS
  179. Island Dynamics in the Large-Helical-Device Plasmas
  180. Achievement of 10 keV Central Electron Temperatures by ECH in LHD.
  181. Electron Heat Transport Analysis of Low-Collisionality Plasmas in the Neoclassical-Transport-Optimized Configuration of LHD.
  182. Triggering Instability of Sawtooth Crash in NBI-Heated Plasmas of CHS Heliotron/Torsatron.
  183. Quasi-Symmetry in Stellarator Research. 5. Status of Physics Design of Quasi-Axisymmetric Stellarators. 5.2. Physics and Engineering Design of CHS-qa.
  184. A study of high-energy ions produced by ICRF heating in LHD
  185. Physics and engineering design of the low aspect ratio quasi-axisymmetric stellarator CHS-qa
  186. Configuration flexibility and extended regimes in Large Helical Device
  187. Overview of LHD experiments
  188. Observation of the “Self-Healing” of an Error Field Island in the Large Helical Device
  189. MHD characteristics in the high beta regime of the Large Helical Device
  190. Experimental investigation of the ripple induced losses of perpendicularly injected beam ions in the low aspect ratio helical system CHS
  191. Statistical properties of the neoclassical radial diffusion in a tokamak equilibrium
  192. Derivation of energy confinement time and ICRF absorption in LHD by power modulation
  193. Ion and electron heating in ICRF heating experiments on LHD
  194. Energy confinement and thermal transport characteristics of net current free plasmas in the Large Helical Device
  195. Reduction of Ion Thermal Diffusivity Associated with the Transition of the Radial Electric Field in Neutral-Beam-Heated Plasmas in the Large Helical Device
  196. Experimental studies towards long pulse steady state operation in LHD
  197. Improved plasma performance on Large Helical Device
  198. Ion cyclotron range of frequency heating experiments on the large helical device and high energy ion behavior
  199. Role of core radiation during slow oscillations in LHD
  200. Impact of pellet injection on extension of the operational region in LHD
  201. The performance of ICRF heated plasmas in LHD
  202. α-particle confinement optimization in quasi-axisymmetric configurations
  203. Charge exchange neutral particle analysis with natural diamond detectors on LHD heliotron
  204. Electron cyclotron heating scenario and experimental results in LHD
  205. In situcalibration of neutral beam port-through power and estimation of neutral beam deposition on LHD
  206. Drift mode calculations for the Large Helical Device
  207. Experimental studies on NBI and ICRF heated plasmas in the large helical device
  208. Ion Heating and High-Energy-Particle Production by Ion-Cyclotron Heating in the Large Helical Device
  209. Overview of the Large Helical Device
  210. Overview of long pulse operation in the Large Helical Device
  211. Thermal transport barrier in heliotron-type devices (Large Helical Device and Compact Helical System)
  212. 5-D simulation study of suprathermal electron transport in non-axisymmetric plasmas
  213. The first ICRF heating experiment in the large helical device
  214. Energy Confinement Time and Heat Transport in Initial Neutral Beam Heated Plasmas on the Large Helical Device
  215. Edge Thermal Transport Barrier In LHD Discharges
  216. The neoclassical “Electron Root” feature in the Wendelstein-7-AS stellarator
  217. Experiments on NBI plasmas in LHD
  218. Plasma confinement studies in LHD
  219. Confinement physics study in a small low aspect ratio helical device: CHS
  220. Effect of energetic ion loss on ICRF heating efficiency and energy confinement time in heliotrons
  221. Overview of the Large Helical Device project
  222. A new bdeltafmethod for neoclassical transport studies
  223. Initial physics achievements of large helical device experiments
  224. Escaping fast ion diagnostics in compact helical system heliotron/torsatron
  225. Physics issues in the LHD plasma
  226. Electromagnetic Effects on Rippling Instability and Tokamak Edge Fluctuations
  227. Nonlinear collisional monte carlo simulations for high-temperature SOL plasma
  228. Cooling effect of secondary electrons in high temperature divertor operation
  229. Strong electron heating in CHS ICRF heating experiments
  230. A Monte Carlo model for velocity space effects in low recycling scrape-off layer plasmas
  231. Vector Implementation of Nonlinear Monte Carlo Coulomb Collisions
  232. Large Helical Device (LHD) program
  233. Orbital aspects of reachable beta value in NBI heated heliotron/torsatrons
  234. Possibility of simulation experiments for fast particle physics in the Large Helical Device (LHD)
  235. Finite β Effects on the ICRF and NBI Heating in the Large Helical Device
  236. Efficiencies of the ion cyclotron range of frequency minority heating in the compact helical system and large helical device plasmas
  237. Monte Carlo simulation study of ICRF minority heating in the Large Helical Device
  238. Macroscale Particle Simulation of Externally Driven Magnetic Reconnection
  239. Nonadiabatic behavior of the magnetic moment of a charged particle in a dipole magnetic field
  240. Development of stochastic webs in a wave-driven linear oscillator