Breakthrough Neutron Optics Discovery Revolutionizes Material Analysis
Researchers from the University of Lynchoping have made a groundbreaking discovery in the field of neutron optics, developing a mirror that greatly enhances the effectiveness of analyzing materials using neutrons. The findings, recently published in Science Advances, have the potential to transform studies across various disciplines, from physics to medicine.
The team of scientists improved neutron mirrors by coating a silicon plate with ultra-thin layers of iron and silicon, along with the addition of boron carbide. “Instead of increasing the neutron source’s power, which can be extremely costly, it is more beneficial to focus on enhancing optics,” explained Fredrick Ericksson, a researcher from the university’s thin films physics division.
Neutrons, found in atomic nuclei alongside protons, offer a detailed analytical method for materials. This technique, known as neutron scattering, is conducted in specialized laboratories such as the European Spallation Source (ESS) in Sweden, which was built with investments totaling 2 billion euros.
The newly developed mirrors exhibit improved reflective capabilities and the ability to polarize neutrons, a crucial factor for experiments. Anton Zubayer, the lead author of the study and a graduate student, stated, “Our mirrors effectively reflect neutrons, increasing their quantity reaching the target. Moreover, they can align neutrons with the same spin, creating opportunities for novel experiments.”
Ericksson stressed the value of each neutron and the significance of enhancing neutron optics for advancing experiments. “By increasing the neutron count and reflecting high-energy neutrons, we expand the possibilities for groundbreaking experiments and discoveries in fields like physics, chemistry, biology, and medicine,” he noted.
The innovative mirror technology, utilizing silicon as a base and a multi-layer film application via magnetron sputtering, promises to significantly reduce background noise in measurements and amplify the number of neutrons reaching their intended destination. This breakthrough not only enhances current materials analysis methods but also paves the way for new types of experiments, pushing the boundaries of scientific research.