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Measurements of hea...
Abstract
Ämnesord
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- The collimation efficiency for Pb-208(82+) ion beams in the LHC is predicted to be lower than requirements Nuclear fragmentation and electromagnetic dissociation in the primary collimators create fragments with a wide range of Z/A ratios, which are not intercepted by the secondary collimators but lost where the dispersion has grown sufficiently large. In this article we present measurements and simulations of loss patterns generated by a prototype LHC collimator in the CERN SPS. Measurements were performed at two different energies and angles of the collimator. We also compare with proton loss maps and find a qualitative difference between Pb-208(82+) ions and protons, with the maximum loss rate observed at different places in the ring. This behavior was predicted by simulations and provides a valuable benchmark of our understanding of ion beam losses caused by collimation.
Ämnesord
- NATURVETENSKAP -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)
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Bruce, Roderik
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Assmann, R. W.
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Bellodi, G.
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Bracco, C.
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Braun, H. H.
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Gilardoni, S.
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visa fler...
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Holzer, E. B.
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Jowett, J. M.
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Redaelli, S.
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Weiler, T.
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