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Glossary

This glossary aims to be a useful tool for visitors to our website. It is a compilation of ILL and neutron science-related words and acronyms - and is permanently under construction! Contributions and suggestions welcome at: communication(at)ill(dot)fr.

Becquerel

The unit of measurement of radioactivity: the number of radioactive atoms that disintegrate (decay) per unit of time (1 Bq = 1 disintegration per second). Multiples of Bq are generally used: 1MBq = 1 million Bq, 1GBq = 1 billion Bq, 1 TBq = 1000 billion Bq.