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Title: LEIR Cooler Status

Abstract

The LHC program foresees lead-lead collisions in the spring of 2008 with luminosity up to 1027 cm-2s-1. To achieve this, the Low Energy Ion Ring (LEIR) has undergone a major upgrade in order to transform lead ion pulses from the LINAC3 into short high-brightness bunches using multi-turn injection, cooling and accumulation. The electron cooler plays an essential role in producing the required beam brightness by rapidly cooling down the newly injected beam and then dragging it to the stack. For the LEIR project, a new cooler has been constructed in collaboration with BINP Novosibirsk. It will deliver up to 600 mA of electron current at an energy of 2.3 keV (corresponding to the lead ion energy of 4.2 MeV/u) and has the advantage that the radius and density profile can be varied to match the characteristics of the injected and circulating lead ion beam. The device was delivered at the end of 2004 and is presently being commissioned. First results of lead ion cooling and stacking with a variable density electron beam are expected in September.

Authors:
 [1]
  1. AB Department, CERN, CH 1211 Geneva (Switzerland)
Publication Date:
OSTI Identifier:
20798450
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 821; Journal Issue: 1; Conference: COOL05: International workshop on beam cooling and related topics, Galena, IL (United States), 18-23 Sep 2005; Other Information: DOI: 10.1063/1.2190093; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BEAM COOLING; BEAM CURRENTS; BEAM INJECTION; BEAM LUMINOSITY; CERN LHC; ELECTRON BEAMS; ELECTRON DENSITY; ELECTRONS; ION BEAMS; ION RINGS; KEV RANGE; LEAD IONS; MEV RANGE; PULSES

Citation Formats

Tranquille, Gerard. LEIR Cooler Status. United States: N. p., 2006. Web. doi:10.1063/1.2190093.
Tranquille, Gerard. LEIR Cooler Status. United States. doi:10.1063/1.2190093.
Tranquille, Gerard. Mon . "LEIR Cooler Status". United States. doi:10.1063/1.2190093.
@article{osti_20798450,
title = {LEIR Cooler Status},
author = {Tranquille, Gerard},
abstractNote = {The LHC program foresees lead-lead collisions in the spring of 2008 with luminosity up to 1027 cm-2s-1. To achieve this, the Low Energy Ion Ring (LEIR) has undergone a major upgrade in order to transform lead ion pulses from the LINAC3 into short high-brightness bunches using multi-turn injection, cooling and accumulation. The electron cooler plays an essential role in producing the required beam brightness by rapidly cooling down the newly injected beam and then dragging it to the stack. For the LEIR project, a new cooler has been constructed in collaboration with BINP Novosibirsk. It will deliver up to 600 mA of electron current at an energy of 2.3 keV (corresponding to the lead ion energy of 4.2 MeV/u) and has the advantage that the radius and density profile can be varied to match the characteristics of the injected and circulating lead ion beam. The device was delivered at the end of 2004 and is presently being commissioned. First results of lead ion cooling and stacking with a variable density electron beam are expected in September.},
doi = {10.1063/1.2190093},
journal = {AIP Conference Proceedings},
number = 1,
volume = 821,
place = {United States},
year = {Mon Mar 20 00:00:00 EST 2006},
month = {Mon Mar 20 00:00:00 EST 2006}
}
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