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Title: Quench tests at the Large Hadron Collider with collimation losses at 3.5 Z TeV
Authors: Redaelli, Stefano
Assmann, Ralph W.
Bellodi, Giulia
Brodzinski, K.
Bruce, Roderik
Burkart, Florian
Cauchi, M.
Deboy, Daniel
Dehning, Bernd
Holzer, Eva Barbara
Jowett, John M.
Lari, Luisella
Nebot del Busto, E.
Pojer, Mirko
Priebe, A.
Rossi, Adriana
Schmidt, Ruediger
Sapinski, M.
Schaumann, M.
Solfaroli Camollocci, M.
Valentino, Gianluca
Versteegen, R.
Wenninger, Jorg
Wollmann, Daniel
Zerlauth, Markus
Keywords: Large Hadron Collider (France and Switzerland)
Colliders (Nuclear physics)
Particle accelerators
Principal components analysis
Proton beams -- Measurement
Issue Date: 2012
Publisher: JACoW
Citation: Redaelli, S., Assmann, R. W., Bellodi, G., Brodzinski, K., Bruce, R., Burkart, F., ... & Jowett, J. M. (2012). Quench tests at the Large Hadron Collider with collimation losses at 3.5 Z TeV. 52nd ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams, Beijing. 157-161.
Abstract: The Large Hadron Collider (LHC) has been operating since 2010 at 3.5 TeV and 4.0 TeV without experiencing quenches induced by losses from circulating beams. This situation might change at 7 TeV where the quench margins in the super-conducting magnets are reduced. The critical locations are the dispersion suppressors (DSs) at either side of the cleaning and experimental insertions, where dispersive losses are maximum. It is therefore crucial to understand the quench limits with beam loss distributions alike those occurring in standard operation. In order to address this aspect, quench tests were performed by inducing large beam losses on the primary collimators of the betatron cleaning insertion, for proton and lead ion beams of 3.5 Z TeV, to probe the quench limits of the DS magnets. Losses up to 500 kW were achieved without quenches. The measurement technique and the results obtained are presented, with observations of heat loads in the cryogenics system.
ISBN: 9783954501182
Appears in Collections:Scholarly Works - FacICTCCE

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