Glossary
This glossary aims at being a useful tool for the visitors of our website. It gathers ILL and neutron science related words and acronyms - and is permanently under construction! Contributions and suggestions welcome to communication(at)ill(dot)fr.
heavy water
Heavy water (deuterium oxide, 2H2O, D2O) is a form of water whose hydrogen atoms are all deuterium (2H or D), also known as heavy hydrogen) rather than the common hydrogen-1 isotope (1H or H, also called protium) that makes up most of the hydrogen in normal water.