| Paper |
Title |
Page |
| TUPAN102 |
Numerical Study of the Very Forward Background from the Proton-Proton Collisions in the Experimental Insertions of the LHC
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1619 |
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- V. Talanov, H. Burkhardt, D. Macina, E. Tsesmelis
CERN, Geneva
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The results from the numerical DPMJET-FLUKA simulation of the background in the experimental IR's of the LHC are presented. DPMJET3 is used for the generation and analysis of the products from the p-p collision leaving the interaction point in the very forward region. A multi-particle transport code FLUKA is used for the simulation of the resulting secondary cascades in the structure of the LHC long straight sections. The background formation is estimated and analyzed in the LSS's at the locations of the TAN absorber, Roman Pot stations and Beam Loss Monitors, for the purposes of the machine protection and planning of the operation of the detectors.
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| FRPMN067 |
Collision Rate Monitors for LHC
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4171 |
| |
- E. Bravin, S. Burger, C. Dutriat, T. Lefevre, V. Talanov
CERN, Geneva
- A. Brambilla, M. Jolliot, S. Renet
CEA, Grenoble
- J. M. Byrd, K. Chow, H. S. Matis, M. T. Monroy, A. Ratti, W. C. Turner
LBNL, Berkeley, California
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Collision rate monitors are essential in bringing particle beams into collision and optimizing the performances of a collider. In the case of LHC the relative luminosity will be monitored by measuring the flux of small angle neutral particles produced in the collisions. Due to the very different luminosity levels at the four interaction regions (IR) of LHC two different types of monitors have been developed. At the high luminosity IR (ATLAS and CMS) fast ionization chambers will be installed while at the other two (ALICE and LHC-b) solid state polycrystalline Cadmium Telluride (CdTe) detectors will be used. The ionization chambers are being developed by Lawrence Berkeley National Lab (Berkeley CA, USA) while the CdTe monitors are being developed by CERN and CEA-LETI (Grenoble, FR) This paper describes the system with particular emphasis on the monitors based on CdTe detectors, detailed description of the ionisation chambers being available in separate papers.
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