Low Energy Ion Ring

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CERN's accelerator complex
List of the current
particle accelerators at CERN
Linac 2 Accelerates protons
Linac 3 Accelerates ions
Linac 4 Accelerates negative hydrogen ions
AD Brakes antiprotons
LHC Collides protons or heavy ions
LEIR Accelerates lead ions
PSB Accelerates protons or ions
PS Mainly accelerates protons
PLC Accelerates protons, among other things
Low Energy Ion Ring (LEIR)

The Low Energy Ion Ring ( LEIR ) is since 2006 operated particle accelerator for lead - ions at CERN , with a circumference of 78.5 meters. With it, of be linear accelerator 3 LINAC with 4.2  MeV lead ions provided to packets ( bunches ) combined and further accelerated to an energy of 72 MeV. These are then fed into the pre-accelerator chain of the Large Hadron Collider (LHC) via the Proton Synchrotron (PS) , further accelerated and brought to a collision in the LHC. The Low Energy Ion Ring emerged from the Low Energy Antiproton Ring (LEAR), which was used from 1982 to 1996 for experiments with antimatter and with which, among other things, it was possible for the first time to generate a few atoms of anti-hydrogen . The tasks of LEAR have been taken over by the Antiproton Decelerator (AD) since 2000 .

literature

  • Michael Benedikt (Ed.) U. a .: LHC design report. Volume III: The Injector Chain. CERN, Geneva 2004, ISBN 92-9083-239-8 ( online ; PDF).
Commons : Low Energy Ion Ring  - Collection of Images, Videos and Audio Files

Individual evidence

  1. ↑ Michael Benedikt (ed.) U. a .: LHC design report. Volume III: The Injector Chain. CERN, Geneva 2004, p. 326.
  2. ^ Christian Carli, Michel Chanel, Dieter Möhl: The Low-Energy Antiproton and Ion Rings LEAR and LEIR. In: S. Gilardoni, D. Manglunki (Eds.): Fifty years of the CERN Proton Synchrotron. Volume II, CERN, Geneva 2013, ISSN  0007-8328 , pp. 33-45 ( online ; PDF).
  3. ↑ Michel Chanel: LEIR: the low energy ion ring at CERN. ( Memento of March 4, 2016 in the Internet Archive ) (PDF; 2.0 MB) In: Nuclear Instruments and Methods in Physics Research A. Vol. 532, No. 1–2, 2004, pp. 137–143, doi : 10.1016 / j.nima.2004.06.040 .