Low Energy Ion Ring
| Current particle and nuclear facilities | |
|---|---|
| LHC | Accelerates protons and heavy ions | 
| LEIR | Accelerates ions | 
| SPS | Accelerates protons and ions | 
| PSB | Accelerates protons | 
| PS | Accelerates protons or ions | 
| Linac 3 | Injects heavy ions into LEIR | 
| Linac4 | Accelerates ions | 
| AD | Decelerates antiprotons | 
| ELENA | Decelerates antiprotons | 
| ISOLDE | Produces radioactive ion beams | 
| MEDICIS | Produces isotopes for medical purposes | 
The Low Energy Ion Ring (LEIR) is a particle accelerator at CERN used to accelerate ions from the LINAC 3 to the Proton Synchrotron (PS) to provide ions for collisions within the Large Hadron Collider (LHC).