Speaker
Description
Krystian Prusik, PhD, Assoc. Prof.
Direct observation of the structure of materials allows us to understand its influence on their properties. It is possible thanks to the use of transmission and scanning electron microscopy. The use of an electron beam instead of visible light allows to increase the resolving power and the range of obtained magnifications even up to 20 million or more times. Such a magnification span allows for observation of matter at any scale: macro, micro or nano. Electrons are also one type of ionizing radiation that is able to remove bound electrons from electron shells, transferring some of its energy to individual atoms in the sample. One of the advantages of using ionizing radiation is that it produces a wide range of additional signals that provide us with information about the chemical composition and many other details about the materials under study. All this has resulted in electron microscopy being hailed as a complete material research tool of the last millennium.