Realization of the Kilogram at NMIJ

Learn about the realization of the kilogram at the National Metrology Institute of Japan (NMIJ) with the X-ray crystal density method. This is a great opportunity to learn about this topic from Dr. Naoki Kuramoto, who significantly contributed to the determination of the Planck constant in the new definition of the kilogram by measuring the volume of 28Si-enriched spheres.

Program

• Details of the X-ray crystal density method for the realization of the kilogram

• Information on 28Si-enriched spheres and the International Avogadro Coordination

• An example of the realization experiment: measurement results for a key comparison of kilogram realizations

Speaker: Dr. Naoki Kuramoto (National Metrology Institute of Japan NMIJ)

Prime Senior Researcher, Leader of Mass Standards Group