We are surrounded by a wide variety of materials that have their own physical properties, and the goal of materials science is to control the physical properties at will. Then, what information is necessary to control physical properties? One of them is the structure of atoms and molecules that make up materials. It is known that the structure of atoms and molecules at the nanometer scale has a great influence on the physical properties of materials. Our laboratory aims to contribute to society through the development of apparatuses that can accurately measure such nanoscale structures.