98 results on '"Nagashima, Y."'
Search Results
2. Positronium emission from GaN(0001) and AlN(0001) surfaces
3. Correlation-estimated conditional average method and its application on solitary oscillation in PANTA
4. Positronium formation at 4H SiC(0001) surfaces
5. Electron heating of over-dense plasma with dual-frequency electron cyclotron waves in fully non-inductive plasma ramp-up on the QUEST spherical tokamak
6. Particle balance investigation with the combination of the hydrogen barrier model and rate equations of hydrogen state in long duration discharges on an all-metal plasma facing wall in QUEST
7. Positronium formation at 4H SiC(0001) surfaces.
8. Effect of magnetic shear on edge turbulence in SOL-like open field line configuration in QUEST
9. Experimental and computational studies of positron-stimulated ion desorption from TiO2(1 1 0) surface
10. Investigation of hydrogen recycling in long-duration discharges and its modification with a hot wall in the spherical tokamak QUEST
11. Fully non-inductive second harmonic electron cyclotron plasma ramp-up in the QUEST spherical tokamak
12. Hysteresis and fast timescales in transport relations of toroidal plasmas
13. Model validation for radial electric field excitation during L–H transition in JFT-2M tokamak
14. High-dose boron and silver ion implantation into PMMA probed by slow positrons: Effects of carbonization and formation of metal nanoparticles
15. Research progress at the Slow Positron Facility in the Institute of Materials Structure Science, KEK
16. Structure of nitride layer formed on titanium alloy surface by N2-gas exposure at high temperatures
17. Power Balance Estimation in Long Duration Discharges on QUEST
18. Emission of low-energy positronium from alkali-metal coated single-crystal tungsten surfaces
19. Response of the far scrape-off layer plasma to strong gas puffing in the high poloidal beta configuration of the QUEST spherical tokamak
20. Adaptive-array Electron Cyclotron Emission diagnostics using data streaming in a Software Defined Radio system
21. Multiple wall-reflection effect in adaptive-array differential-phase reflectometry on QUEST
22. Tomography as a promising diagnostic tool for plasma turbulence
23. Thomson scattering measurements in low-density plasmas in the TST-2 spherical tokamak
24. Development of an energy-tunable positronium beam apparatus using the photodetachment of the positronium negative ion
25. Non-inductive plasma start-up experiments on the TST-2 spherical tokamak using waves in the lower-hybrid frequency range
26. Edge plasma dynamics during L-H transition in the JFT-2M tokamak
27. End plate biasing experiments in linear magnetized plasmas
28. Plasma current start-up experiments using a dielectric-loaded waveguide array antenna in the TST-2 spherical tokamak
29. Dynamics of edge limit cycle oscillation in the JFT-2M Tokamak
30. Positronium and positronium negative ion emission from alkali-metal coated tungsten surfaces
31. L-shell x-ray production cross sections of Ag, In and Sn by positron impact
32. Role of energetic electrons during current ramp-up and production of high poloidal beta plasma in non-inductive current drive on QUEST
33. New experiment stations at KEK Slow Positron Facility
34. Efficient emission of positronium atoms from an Na-coated polycrystalline tungsten surface
35. Non-inductive plasma initiation and plasma current ramp-up on the TST-2 spherical tokamak
36. On turbulence-correlation analysis based on correlation reflectometry
37. Magnetic field-free measurements of the total cross sections for positron–neon and positron–argon scattering
38. Dynamic interaction between a solitary drift wave structure and zonal flows in a linear cylindrical device
39. Bifurcation of the plasma turbulence on LMD-U
40. Positron accumulation and manipulation for antihydrogen synthesis
41. Ps−emission from Cs coated surfaces
42. Developments of the cusp trap to synthesize antihydrogen atoms for high precision spectroscopy of ground state hyperfine splitting
43. Physics at a future Neutrino Factory and super-beam facility
44. Observations of abrupt changes in the fluctuation spectrum on LMD-U
45. Parametric decay instability during high harmonic fast wave heating experiments on the TST-2 spherical tokamak
46. Boundary of the geodesic acoustic eigenmode in the vicinity of the magnetic separatrix
47. Non-inductive plasma current start-up by EC and RF power in the TST-2 spherical tokamak
48. Investigation of competitive oscillations between drift mode and flute mode in linear cylindrical ECR plasma
49. Experimental progress on zonal flow physics in toroidal plasmas
50. In search of zonal flows by using direct density fluctuation measurements
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