Welcome!

Welcome to the website of the Collinear Resonance Ionization Spectroscopy (CRIS) experiment, located at the ISOLDE facility, CERN.

Find out more: CRIS uses lasers to study the energy levels of atomic electrons to pin down fundamental properties of the nucleus.

Meet the CRIS team: The CRIS Collaboration comprises of 25 physicists from 9 institutions in 9 different countries.

Read all about it: The most recent articles, papers, proceedings and newsletters from the CRIS experiment.

Discover: Read about the main physics aims and achievements of the CRIS experiment in detail.