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.
green controlled radiation areas
from 7,5 to 25 µSv per hour
Ground acceleration in seismology
g: The movement of the ground (“ground motion”) in the event of an earthquake is characterised in particular by its displacement, its velocity, its acceleration, its frequency and its duration.
To quantify ground acceleration in seismology, the unit of acceleration under the force of gravity, known as the “g”, is used. 1 g corresponds to 9.81m/sec2.