HANDLING OF PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR

**Definition:** This place covers:

Arrangements for handling particles or ionising radiation, e.g. focusing or moderating;

Ionising radiation filters, e.g. X-ray filters;

Conversion screens for the conversion of the spatial distribution of particles or ionising radiation into visible images, e.g. fluoroscopic screens;

Irradiation devices;

Gamma ray or X-ray microscopes.

**Glossary:** - ionising radiation: 'ionising radiation' consists of particles or electromagnetic waves that are sufficiently energetic to detach electrons from atoms or molecules, thus ionising them - particle: 'particle' means a molecular, atomic or subatomic particle