A5045871242- Fusion materials and technologies
- Nuclear Materials and Properties
- Magnetic confinement fusion research
- Metal and Thin Film Mechanics
- Semiconductor materials and devices
- Advanced materials and composites
- Silicon and Solar Cell Technologies
- Plasma Diagnostics and Applications
- Ion-surface interactions and analysis
- Copper Interconnects and Reliability
- Atmospheric chemistry and aerosols
- Soil and Water Nutrient Dynamics
- Industrial Gas Emission Control
- Muon and positron interactions and applications
- Particle accelerators and beam dynamics
- Vehicle emissions and performance
- Nuclear Physics and Applications
Shizuoka University
2016-2017
Effects of annealing after/under iron (Fe) ion irradiation on deuterium (D) retention behavior in tungsten (W) were studied. The D2 TDS spectra as a function heating temperature for 0.1 dpa damaged W showed that the D was clearly decreased increased. In particular, desorption trapped by voids largely reduced at 1173 K. TEM observation indicated size dislocation loops grown, and its density above 573 After K, almost all recovered. results positron annihilation spectroscopy suggested...
Effect of carbon based mixed-material deposition layer formation on hydrogen isotope retention was studied. The tungsten (W) samples were placed at four different positions, namely PI (sputtering erosion dominated area), DP (deposition HL (higher heat load and ER (erosion area) during 2013 plasma experimental campaign in Large Helical Device (LHD) National Institute for Fusion Science (NIFS), Japan exposed to ∼ 4000 shots a campaign. Most the sample surface except covered by formed campaign,...
All the hydrogen isotope (H, D, T) simultaneous TDS (Thermal desorption spectroscopy) measurement system (HI-TDS system) was newly designed to evaluate all behavior in materials. The present HI-TDS operated under Ar purge gas and H D desorptions were observed by a quadruple mass spectrometer equipped with an enclosed ion source, although T evaluated ionization chamber or proportional counters. Most of same spectra for derived optimizing heating rate 0.5 K s−1 flow 13.3 sccm.Using this...
One of the most outstanding problems in multilevel interconnect technology is filling and planarization metals deep vias trenches. Due to shadowing effect, metal via with large aspect ratio using conventional deposition techniques known be very difficult. A directional technique, as partially ionized beam (PIB) shows that oxide trenches an 3 can filled wall Al or Al–Cu alloy. Unlike techniques, films deposited by PIB technique grow layer do not develop usual overhang structure at top corner...