ブックメーカーで勝ちやすいスポーツ(2024年最新) 低リスク ...

Fields Medical Life Sciences Information Communication Environment Nanotechnology / Materials Energy Manufacturing Technology Social Infrastructure Frontier Liberal Arts Themes Researchers JP Top Nanotechnology / Materials Quantitative analysis of microstructure in nuclear materials by week-beam scanning transmission electron microscopy Quantitative analysis of microstructure in nuclear materials by week-beam scanning transmission electron microscopy JAPANESEINQUIRY update：2024/01/29 NEXT PREV Overview of Technology We have developed a technique for quantitative analysis of microstructures (e.g., dislocations and irradiation defect aggregates) of activated and nuclear-burned specimens in the context of the Week Beam Scanning Transmission Electron Microscope (WB-STEM) method, which boasts extremely high measurement accuracy as a quantitative analysis method for lattice defects.In combination with a dedicated heated sample holder with fully automated temperature measurement and current control in a cartridge-type heating furnace, changes in dislocation microstructure can be dynamically measured in-situ along with a highly reliable temperature history. Comparison with Conventional Technology Conventional TEM methods require expertise in reciprocal space and dislocation theory, but our WB-STEM method is equipped with automatic analysis software for film thickness measurement and dislocation loop feature extraction, making it possible to analyze irradiation defects easily and precisely. Features and Uniqueness Since its design, the WB-STEM method has been developed for implementation and on-site repair in radiation controlled areas where nuclear materials are handled, with special aperture and diffraction disc selection equipment, control and analysis software. WB-STEM accepts irradiation defect analysis of activated specimens from all over the world, including RPV monitoring specimens from European reactors and neutron-irradiated materials from US research reactors. It is also used to analyze the properties of iron-containing nuclear fuel simulated debris in decommissioning projects. Practical Application We support research organizations that currently use transmission electron microscopy to observe microstructures to introduce the WB-STEM method by special modification. We will instruct researchers who have no experience using transmission electron microscopy in the procedure for dislocation analysis. Keywords Electron microscopy Dislocation in-situ defects Nuclear materials Fuel Researchers Institute for Materials Research Kenta Yoshida, Associate ProfessorMSｃ.（Engineering）(Nagoya Univ.)/Ph. D.（Engineering）(Nagoya Univ.) Laboratory Website researchmap Laboratory Website researchmap Browsing History Research Profiles ©TOHOKU UNIVERSITY How to Use FAQ For Researchers Site Policy [jp] ©TOHOKU UNIVERSITY Fields Medical Life Sciences Information Communication Environment Nanotechnology / Materials Energy Manufacturing Technology Social Infrastructure Frontier Liberal Arts Fields Themes Researchers 日本語 ENGLISH Close