100 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. Real-time control of electron cyclotron wave polarization in the LHD
6. Multi-hole coupling power monitor with tapered sub-waveguide for dual-frequency high-power gyrotron.
7. 10 years of engineering and physics achievements by the Large Helical Device project
8. First observation and interpretation of spontaneous collective radiation from fusion-born ions in a stellarator plasma.
9. Control of a steady-state operation using ICRF heating in the large helical device
10. Control system for electron cyclotron resonance heating in the large helical device
11. 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.
12. Long-pulse Plasma Discharges by Upgraded ECH System in the LHD
13. Experimental characterization of plasma start-up using ECRH in preparation of W7-X operation
14. Development of a Millimeter-Wave Beam Position and Profile Monitor for Transmission Efficiency Improvement in an ECRH System
15. Homodyne interferometry using a phase rotator for calibration of sine–cosine phase detection of a 70 GHz probe beam through a plasma.
16. Density dependence of ion cyclotron emission from deuterium plasmas in the large helical device.
17. Progress of ECRH by EBW in over-dense plasmas and controlling the confinement regime by ECCD with high power launching in LHD
18. Influence of high energy electrons on ECRH in LHD
19. Improved performance of electron cyclotron resonance heating by perpendicular injection in the Large Helical Device.
20. Correcting for non-periodic behaviour in perturbative experiments: application to heat pulse propagation and modulated gas-puff experiments.
21. Isotope effect in transient electron thermal transport property and its impact on the electron internal transport barrier formation in LHD.
22. Extended investigations of isotope effects on ECRH plasma in LHD.
23. 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.
24. 2D spatial profile measurements of potential fluctuation with heavy ion beam probe on the Large Helical Device.
25. Reconstruction of high temporal resolution Thomson scattering data during a modulated electron cyclotron resonance heating using conditional averaging.
26. Design of polarizers for a mega-watt long-pulse millimeter-wave transmission line on the large helical device.
27. Excitation of electrostatic waves in the electron cyclotron frequency range during magnetic reconnection in laboratory overdense plasmas.
28. LHD accomplishments/plans in support of fusion next-steps.
29. Extension of high Te regime with upgraded electron cyclotron resonance heating system in the Large Helical Device.
30. Development of steady-state operation using ion cyclotron heating in the Large Helical Device.
31. Electron Bernstein wave heating by electron cyclotron wave injection from the high-field side in LHD.
32. Steady-state operation using a dipole mode ion cyclotron heating antenna and 77 GHz electron cyclotron heating in the Large Helical Device.
33. Development of multi-purpose MW gyrotrons for fusion devices.
34. High Density Plasma Heating by EC-Waves Injected from the High-Field Side for Mode Conversion to Electron Bernstein Waves in LHD.
35. Collective Thomson scattering of a high power electron cyclotron resonance heating beam in LHD (invited).
36. Collective Thomson Scattering of 77 GHz High-Power ECRH Beam in LHD.
37. Production and Electron Heating of Over-Dense Plasmas by 2.45 GHz Electron Bernstein Waves on CHS.
38. The observation of nonlinear ion cyclotron wave excitation during high-harmonic fast wave heating in the large helical device.
39. Thirty-minute plasma sustainment by real-time magnetic-axis swing for effective divertor-load-dispersion in the Large Helical Device.
40. ICRF Heated Long-Pulse Plasma Discharges in LHD.
41. Observation of sawtooth crashes by a multi-toroidally positioned soft x-ray computer tomography system in the WT-3 tokamak.
42. Electron cyclotron beam measurement system in the Large Helical Device.
43. Development of fast steering mirror control system for plasma heating and diagnostics.
44. Power and polarization monitor development for high power millimeter-wave.
45. Electron Bernstein wave Emission diagnostics using phased-array antenna system in QUEST.
46. Improvements of data quality of the LHD Thomson scattering diagnostics in high-temperature plasma experiments.
47. Collective Thomson scattering with 77, 154, and 300 GHz sources in LHD.
48. Searching for O-X-B mode-conversion window with monitoring of stray microwave radiation in LHD.
49. Optimization of high power and high efficiency operation of 77GHz gyrotrons for ECRH in the large helical device.
50. Progress of a multi-megawatt gyrotron system for Electron Cyclotron heating on the Large Helical Device.
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