| Paper |
Title |
Page |
| TUZAC03 |
LHC Machine Protection
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878 |
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- R. Schmidt, R. W. Assmann, E. Carlier, B. Dehning, R. Denz, B. Goddard, E. B. Holzer, V. Kain, B. Puccio, B. Todd, J. A. Uythoven, J. Wenninger, M. Zerlauth
CERN, Geneva
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This paper addresses the imposing challenges of the LHC Machine Protection System.
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Slides
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| TUPAN096 |
High Intensity Commissioning of the SPS LSS4 Extraction for CNGS
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1604 |
| |
- V. Kain, E. Carlier, E. H.R. Gaxiola, B. Goddard, M. Gourber-Pace, E. Gschwendtner, M. Meddahi, H. Vincke, H. Vincke, J. Wenninger
CERN, Geneva
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The fast extraction in SPS LSS4 serves both the anti-clockwise ring of the LHC and the CERN Gran Sasso Neutrino facility (CNGS). The latter requires 2 fast extractions of 10.5 microsecond long batches per cycle, 50 milliseconds apart. Each batch will consist of 2.4·10+13 protons at 400 GeV, a factor of 10 in energy density above the equipment damage limit in case of beam loss. Active and passive protection systems are in place to guarantee safe operation and to respect the radiation limits close to the extraction region. In summer 2006 CNGS was commissioned including extraction with high intensity. A thorough setting-up of the extraction was performed as part of the CNGS commissioning, including aperture and beam loss measurements, and defining and checking of interlock thresholds for the extraction trajectory, magnet currents, kicker voltage and beam loss monitors. The various systems and the associated risks are discussed, the commissioning results are summarised and a comparison is made with predictions from simulations.
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| TUPAN097 |
Studies of Beam Losses from Failures of SPS Beam Dump Kickers
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1607 |
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- T. Kramer, G. Arduini, O. E. Berrig, E. Carlier, L. Ducimetiere, B. Goddard, A. Koschik, J. A. Uythoven
CERN, Geneva
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The SPS beam dump extraction process was studied in detail to investigate the possibility of operation with reduced kicker voltage and to fully understand the trajectory and loss pattern of the mis-kicked beams. This paper briefly describes the SPS beam dump process, and presents the tracking studies carried out for failure cases. The simulation results are compared to the results of measurements made with low intensity beams.
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