276 results on '"Igami, H."'
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2. Development of a 56 GHz ECH system for deuterium plasma experiments of a low magnetic field in LHD
3. Real-time control of the deposition location of ECRH in the LHD
4. Measurement of stray millimeter-wave radiation from a 70-GHz ECH/ECCD system in Heliotron J
5. Multi-hole coupling power monitor with tapered sub-waveguide for dual-frequency high-power gyrotron
6. Real-time control of electron cyclotron wave polarization in the LHD
7. Direct observation of the non-locality of non-diffusive counter-gradient electron thermal transport during the formation of hollow electron-temperature profiles in the Large Helical Device
8. Homodyne interferometry using a phase rotator for calibration of sine–cosine phase detection of a 70 GHz probe beam through a plasma
9. Isotope effects on transport in LHD
10. 10 years of engineering and physics achievements by the Large Helical Device project
11. Electron Temperature Measurement Using Electron Bernstein Emission in Heliotron J
12. First observation and interpretation of spontaneous collective radiation from fusion-born ions in a stellarator plasma.
13. Density dependence of ion cyclotron emission from deuterium plasmas in the large helical device
14. Control of a steady-state operation using ICRF heating in the large helical device
15. Control system for electron cyclotron resonance heating in the large helical device
16. Improved performance of electron cyclotron resonance heating by perpendicular injection in the Large Helical Device
17. Long-pulse Plasma Discharges by Upgraded ECH System in the LHD
18. Experimental characterization of plasma start-up using ECRH in preparation of W7-X operation
19. Development of a Millimeter-Wave Beam Position and Profile Monitor for Transmission Efficiency Improvement in an ECRH System
20. Isotope effect in transient electron thermal transport property and its impact on the electron internal transport barrier formation in LHD
21. Collective Thomson scattering with 77, 154, and 300 GHz sources in LHD
22. Isotope effects on energy, particle transport and turbulence in electron cyclotron resonant heating plasma of the Large Helical Device
23. Determining the electron transport mechanisms from direct heat flux reconstructions
24. Correcting for non-periodic behaviour in perturbative experiments: application to heat pulse propagation and modulated gas-puff experiments
25. Progress of ECRH by EBW in over-dense plasmas and controlling the confinement regime by ECCD with high power launching in LHD
26. Influence of high energy electrons on ECRH in LHD
27. Determining the electron transport mechanisms from direct heat flux reconstructions
28. Interpreting observations of ion cyclotron emission from large helical device plasmas with beam-injected ion populations
29. New evidence and impact of electron transport non-linearities based on new perturbative inter-modulation analysis
30. Improved performance of electron cyclotron resonance heating by perpendicular injection in the Large Helical Device.
31. Extended investigations of isotope effects on ECRH plasma in LHD.
32. Proposal and verification numerical simulation for a microwave forward scattering technique at upper hybrid resonance for the measurement of electron gyroscale density fluctuations in the electron cyclotron frequency range in magnetized plasmas
33. Extension of the operational regime of the LHD towards a deuterium experiment
34. Analysis of higher harmonics on bidirectional heat pulse propagation experiment in helical and tokamak plasmas
35. 2D spatial profile measurements of potential fluctuation with heavy ion beam probe on the Large Helical Device
36. Flow damping due to stochastization of the magnetic field
37. Scattering volume in the collective Thomson scattering measurement using high power gyrotron in the LHD
38. Reconstruction of high temporal resolution Thomson scattering data during a modulated electron cyclotron resonance heating using conditional averaging
39. Progress of long pulse discharges by ECH in LHD
40. Development and application of a ray-tracing code integrating with 3D equilibrium mapping in LHD ECH experiments
41. Integrated discharge scenario for high-temperature helical plasma in LHD
42. Development of gyrotrons for fusion with power exceeding 1 MW over a wide frequency range
43. Design of polarizers for a mega-watt long-pulse millimeter-wave transmission line on the large helical device
44. Plasma interface of the EC waves to the LHD peripheral region
45. Development of fast steering mirror control system for plasma heating and diagnostics
46. Electron cyclotron beam measurement system in the Large Helical Device
47. Excitation of electrostatic waves in the electron cyclotron frequency range during magnetic reconnection in laboratory overdense plasmas
48. High-power and Steady-state Operation of ICRF Heating in the Large Helical Device.
49. Overview of transport and MHD stability study: focusing on the impact of magnetic field topology in the Large Helical Device
50. Recent progress in Large Helical Device experiments
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