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Research Updates
No. Date Title
322 April 24, 2019 Making it possible to analyze light coming from the universe for approaching the origin of heavy ions: Computing atomic data of the highest precision
321 March 27, 2019 Predicting behaviors of fast ions: Comparative research of hybrid simulation with experiments
319 February 13, 2019 Generating powerful electromagnetic waves heating plasma electrons: Design developing research of gyrotron
318 January 16, 2019 Metal receiving heat from the sun of the ground:Developing the Dispersion Strengthening Copper carrying cooling function
317 December 12, 2018 Fast Particles Distort Electric Potential in the Plasma:High-Precision Particle Simulation Research
316 November 21, 2018 Operating Simulator of Large Superconducting Magnetic Cooling Device - Heading for the early establishment of an optimal design and an operating method –
315 November 1, 2018 Joint Project between National Institute for Fusion Science and Southwest Jiaotong University in the People’s Republic of China - Construction of the Quasi-axisymmetric stellarator(CFQS)
313 September 19, 2018 Exploring the Conditions for the Use of Superfluid Helium:Boiling Experiment under Exceedingly Minute Gravity
312 August 29, 2018 Asymmetry that Appears in Plasma: Comparison between Density Measurements Based upon the Heavy Ion Beam Probe and Theoretical Research
311 August 8, 2018 Constructing a Strong Wall That Will Not Be Damaged by Plasma:Accelerating Reactor Wall Research Development in Extreme Heat Load Test Devices
310 July 18, 2018 Research on Flows Born in Plasmas: Seeking to Clarify the Influence of the Flow upon Plasma Performance
309 June 27, 2018 Developing New Materials for the Fusion Reactor: Success in Developing Vanadium Alloys Strong at High Temperatures and Appropriate for Manufacturing and Welding
308 June 6, 2018 Improvement of Confinement Performance in Deuterium Experiments: Comparison of Energy Confinement Times
307 May 17, 2018

Visualization Research Utilizing an Immersive Virtual Reality Device: Constructing Helical DEMO Reactor in a Virtual Space

306 April 25, 2018 Mechanisms of Sudden Phenomenon Eruptions:New Discoveries for Immediate Prediction of Plasma Loss
305 March 28, 2018

Plasma E Researchxtending to the Fields of Energy, Medical Treatment, Industry, and Outer Space: Presentations Delivered at the National Institutes of Natural Sciences Research Symposium

304 March 14, 2018 Sending “Big Data” at the World’s Fastest Speed: Collaboration between the Research Center at Rokkasho and Other Institutes

February 21, 2018

Which Came First, the Chicken or the Egg?: Investigating the Law of Causality in the Generation and Suppression of Turbulence
302 January 31, 2018 A High-Precision Simulation of “Detached Plasma” that Mitigates Plasma Heat Load to the Divertor: Development of a Precise Calculation Program for Pursuing the Movement of Various Kinds of Particles
301 January 10, 2018 Visually Investigating Turbulent Flows by Using Liquid Crystal: Experimental Research on Transport by Convection
300 December 6, 2017 Realization of High-efficiency Pumping Using High-performance Cryo-adsorption Pumps: Evacuating Particles Collected at the Divertor in the Vacuum Chamber
299 November 15, 2017 Research on the Fuel Supply through Pellet Injection: Optimization through the Supercomputer
298 October 25, 2017 Producing Gentle Plasma for the Divertor: Many Magnetic Field Structures Seem Possible
297 October 4, 2017

Impurities Flowing Away from Plasma: Observations of Impurity Screening Effects by Spectroscopic Measurements


September 13, 2017

Measuring the Structure of Large Numbers of Turbulent Flows Using a Comb: Developing Diagnostics Using a Frequency Comb

295 August 23, 2017 Examining the Magnetic Island Generation Mechanism through Simulations: Large Deformations Induce New Instabilities
294 August 4, 2017 The Nineteenth Plasma Experimental Cycle Completed: The Deuterium Experiment Has Begun Smoothly
293 July 26, 2017

Effectively Evacuating Hydrogen Gas from Inside the Vacuum Vessel:Development of the Cryogenic Adsorption Pump for Evacuating System

292 July 5, 2017 Measuring Temperature Accurately by Reducing Noise:Enhancing Thomson Scattering Diagnostics

291 June 14, 2017 Suppression of Turbulence and Heat Loss by Deuterium Plasma:Physical Mechanisms Solved by Supercomputers
290 May 24, 2017 Investigating the Anisotropy of Plasma: Polarization Spectroscopy Diagnostics
289 May 2, 2017 Expelling Impurities by Microwaves: A Method for Cleaning Plasma
288 April 12, 2017 Toward an Understanding of Edge Plasma: Comparing Experiment and Numerical Simulation
287 March 22, 2017 Detailed Measurements of Electron Temperature Fluctuations with Digital Spectroscopy: Electron Cyclotron Emission Measurement
286 March 1, 2017 Heating Ions through Heat from Electrons: Heating Experiments Using High-Power High-Frequency Electromagnetic Waves
285 February 8, 2017 The Nineteenth Experimental Cycle Started
284 February 1, 2017 Plasma-Material Interaction Investigated by Electron Microscope: The Discovery of the Effect of Crystal Orientation
283 January 11, 2017 Confirming the Improvement of Hydrogen Solubility through the Mixing of Metallic Particles: Anticipating Application to the Coolants in the Fusion Reactor
282 December 7, 2016 Clarifying Plasma Perturbations by High-energy Particles: Hybrid Simulations Using Particles and Fluids

November 16, 2016

The Ballooning (Balloon-Type) Instability Caused by the Steep Pressure Gradient: Acquiring Hints Regarding Improvement of High-density Plasma Performance


October 26, 2016

Investigating the Whereabouts of Waves inside a Plasma: The Development of an Observation Method Focusing on Cost-Performance


October 5, 2016

Observations of Fluctuations that Grow Together with Deceleration of Rotation: A Comparison of Helical and Tokamak Plasmas


September 14, 2016

Clarifying the Physics of the Confinement Improvement Phenomenon of High-temperature Plasmas: Results that Approach Questions over the Past Thirty Years

277 August 24, 2016

Imaging Diagnostics of LHD Plasma Using High-speed Cameras and a Simulation Analysis: The Movement of Dusts in Edge Plasmas


August 3, 2016

Discovery of a Method for Strongly Affixing Two Metals with Different Properties: Contributing to the High Performance of the Divertor’s Removal of the High Heat Load


July 13, 2016

Investigating the Growth and Rotation of Plasma Fluctuations through Calculations: Linear Analysis and Nonlinear Simulation of Instabilities

274 June 22, 2016

Aiming the Electron Beam and Investigating the Light Emission: Collecting Light Emission Data from Ceramics Materials for the Fusion Reactor

273 June 1, 2016 We Now Understand the Idea for Maintaining Fusion Plasma for an Extended Duration: Micro-sedimentary Accumulation Layer Controls Plasma Maintenance
272 May 11, 2016 Discovering a New Plasma Confinement Condition: Results from the Japan-United States Joint Research
271 April 20, 2016 Seeking to Predict Plasma Movement in a Fusion Reactor: Reproduction of Collision Phenomena among Multiple Ion Species on Computer
270 April 1, 2016 Optical Devices Made of Ceramics that Cause the Phenomenon that the Father of Electricity “Faraday” Discovered: Toward Accurate Measurements of Plasma

March 9, 2016

Discovery of a New Abrupt Phenomenon in High-temperature Plasma in the Large Helical Device: Abrupt Generation of Large Amplitude Waves and Clarification of the Mechanism
268 February 17, 2016 Predicting Plasma Turbulence and Energy Confinement:
Reproducing LHD Deuterium Plasma Using Leading Edge Supercomputers
267 January 27, 2016

Success in Extensive Coating of Oxidized Erbium Electrical Insulator:
Development of High-performance Coating Technology inside a Pipe for an Advanced Blanket


January 6, 2016

Building a Wall that Withstands High Temperatures Using Liquid Metal:
The Development of the Tin Shower Divertor


December 7, 2015

Transmitting Electromagnetic Waves for Plasma Heating with High Efficiency and High Quality: Numerical Simulation of Electromagnetic Wave Propagation in Waveguides

November 16, 2015

Investigating Plasma’s “Thread-like” Behavior by Computer Simulation: Microscopic Effects in Edge Plasma

263 October 27, 2015 Enhancing the High Efficiency of Electron Cyclotron Resonance Heating: Estimating How Electromagnetic Waves Curve
262 October 5, 2015 LHD Plasma in Which Impurities Naturally Decrease: Research on Impurity Transport in Edge Plasma
261 September 14, 2015 Analyzing Big Data at High Speed!: Developing a High-speed Plasma Analysis System
260 August 24, 2015 Microwave Imaging: New Image Diagnostic Techniques Born of Fusion Research
259 August 3, 2015 Data Analysis of Waves Inside a Plasma: Cooperating with Basic Plasma Experiments
258 July 13, 2015 Measuring the Electric Field Structure in a Plasma: Two-Dimensional Electric Potential Diagnostics through the Heavy Ion Beam Probe Method
257 June 22, 2015 Seeking Materials Stronger at Higher Temperatures: The Development of Oxide Dispersion-Strengthened Metals
256 June 1, 2015 Long-Term Prediction of the Temperature and Density of Plasma Made Possible: Computer Simulation Research Focusing on the Butterfly Effect
255 May 14, 2015 Electron Density Diagnostics with a Harmonic Interferometer: Joint Research toward Plasma Applications in Environmental and Medical Fields
254 April 20, 2015 Observing the Emission Spectrum of the “Water Window” Region: Joint Research Aimed toward the Development of New Microscopes for Viewing Living Cells
253 April 6, 2015 Using a Coolant Containing Lithium to Remove Heat from Plasma: Developing a Coolant Circulation Loop that Simulates the Fusion Power Generation System
252 March 23, 2015 Clarifying the Particle Acceleration Mechanism through Shock Waves in a Plasma: Introducing Research Utilizing the Plasma Simulator
251 March 11, 2015 Measuring Negative Hydrogen Ion Density in Plasma: Seeking to Enhance High Performance Negative Ion Sources
250 February 23, 2015 Controlling Convection: Numerical Simulation Using Supercomputers
249 February 9, 2015 The 18th Plasma Experiment Cycle Concluded: Advances in High-Performance Plasma
248 February 2, 2015 High-speed Photography of Changes in Plasma: High-speed Soft X-ray Camera Measurements
247 January 19, 2015 New Developments in Research on Steady State Plasma: Maintaining High-performance Plasma for an Extended Period
246 January 5, 2015 Investigating Periphery Plasma by Inserting a Needle: The Electrostatic Probe Diagnostic
245 December 15, 2014 Destroy the Symmetry Slightly and Skillfully Confine the Plasma
244 December 1, 2014 Maintaining Plasma for Extended Duration: Enhancing the Performance of Steady-state Plasma through Increased Heating<
243 November 17, 2014 Natural Radioactive Sources which Use Materials in Our Daily Lives: Developing Practical Radiation Education Methods
242 November 6, 2014 The 18th Cycle of Plasma Experiments Has Begun
241 October 20, 2014 Investigating the Light from Tungsten: The Condition of Tungsten in a High-Temperature Plasma
240 October 6, 2014 Intertwined in a Complicated Manner, Dispersing Heat: Control of the Peripheral Area through the Structure of the Magnetic Field Lines
239 September 22, 2014 Changing the Orbit by Collison: The Transport of Particles and Heat Caused by Collisions of Charged Particles
238 September 8, 2014 Measuring Ion Temperature from the Movement of Electrons: The Microwave Collective Thomson Scattering Method
237 August 25, 2014 Efficiently Confining High-pressure Plasma: Research on the Amount of Plasma Leakage
236 August 11, 2014 Measuring the Energy of Light Emitted from Plasma: Bolometer Diagnostics
235 July 28, 2014 The Heating Region Expanded by Frequencies Two or Three Times Greater: Electromagnetic Wave Heating Using Higher Harmonic Waves
234 July 14, 2014 Confining High-energy Particles: Detecting Lost Ions
233 June 30, 2014 Challenging Big Data: Fusion Experiments Supported by Leading Edge Japanese Information Technology
232 June 16, 2014 Making Beautiful Hydrogen Ice: The Application of Extreme Low-temperature Technology to Laser Fusion
231 June 2, 2014 Let’s Try to Destroy a Plasma: Stable Confinement of High-pressure Plasma
230 May 12, 2014 Solving the Multi-Layer Phenomena of Plasma through Computer Simulation
229 April 21, 2014 Producing a Negative Hydrogen Ion: A Negative Ion-type Neutral Particle Injection Heating Device
228 April 7, 2014 Measuring Electron Temperature above 200,000,000 Degrees: Using the Thompson Scattering Measurement Instrument
227 March 24, 2014 Injecting Impurities by Pinpoint: Tracer Encapsulated Solid Pellet
226 March 10, 2014 The “Flare of My Dreams” in My Mind: Integrated Simulation Research
225 February 24, 2014 Composing the Full Image of the Fusion Power Generation Plant: System Design Research
224 February 10, 2014 A Cooling Design for the Superconducting Coils in the Helical Fusion Reactor
223 January 27, 2014 Injecting Hydrogen Ice into Plasma: Supplying Particles through Solid Hydrogen Pellets
222 January 14, 2014 Clarifying the Circulation Process of Plasma Particles: Simulations of Plasma at the Periphery
221 December 27, 2013 The Seventeenth Cycle of Experiments Has Ended: The Performance of Plasma Has Improved Further
220 December 24, 2013 Catching “Dust”: A Real-Time Dust Detector
219 December 9, 2013 Stronger, Lighter, Smarter: The Construction Design for the Fusion Reactor
218 November 25, 2013 Evaluating in Detail Heating Efficiency through High-Energy Ions: Preparing an Experiment Analysis Code
217 November 11, 2013 Viewing Plasma through an Infrared Pinhole Camera: Developing a Method for Measuring Radiation Three-dimensionally
216 October 28, 2013 Observing an Open Seam in the Magnetic Field Container: An Experiment in the Transport of Heat
215 October 15, 2013 The Design for the Fusion Reactor’s Superconducting Coils Power Supply: If Made to Flow Slowly, The Power Supply Decreases
214 October 2, 2013 The Seventeenth Cycle of Plasma Experiments Has Begun
213 September 30, 2013 High Performance Diagnostics in the Hybrid Era: The Doppler Reflectometry
212 September 17, 2013 Viewing Atoms in a Plasma’s Core: Extreme Spectroscopy
211 September 2, 2013 Seeking Long Sustainment of High-performance Plasma: Ion Cyclotron Resonance Heating
210 August 19, 2013 A Torn Seam Magnetic Field Container that Exceeds Perfection: The Perturbed Magnetic Field Effect
209 August 5, 2013 Research in the Design of a Future-Oriented Fusion Reactor: The Simultaneous Production of Energy and Hydrogen Fuel
208 July 22, 2013 Measuring the Electric Field in Plasma: Heavy Ion Beam Probing
207 July 8, 2013 Investigating the Light from Highly-charged Ions: Basic Research in Highly-charged Ions Using CoBIT
206 June 24, 2013 Joining Remote Experiments that Use a Network: Joint Experiments in the IT Age
205 June 10, 2013 Further Increases in Ion Temperature and Electron Temperature: Expanding the Area of High-temperature Plasma
204 May 27, 2013 The Mysteries of LHD Plasma Seen through a High-Speed Camera: Measuring Plasma through Images
203 May 13, 2013 Accelerating the Negative Ion Beam: Aiming toward Heightened Performance of the Beam Injection Heating Device
202 April 30, 2013 Searching for Intermittent Phenomena in Plasma: Fundamental Plasma Research Using the HYPER-I