The readout of the LHC beam luminosity monitor: Accurate shower energy measurements at a 40 MHz repetition rate

The LHC beam luminosity monitor is based on the following principle. The neutrals that originate in LHC at every PP interaction develop showers of minimum ionizing particles in the absorbers placed in front of the separation dipoles. The shower energy, measured by suitable detectors in the absorbers...

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Autores principales: Manfredi, P F, Ratti, L, Speziali, V, Traversi, G, Manghisoni, M, Re, V, Denes, P, Placidi, Massimo, Ratti, A, Turner, W C, Datte, P S, Millaud, J E
Lenguaje:eng
Publicado: 2004
Materias:
Particle Physics
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2003.11.069
http://cds.cern.ch/record/802342
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author Manfredi, P F
Ratti, L
Speziali, V
Traversi, G
Manghisoni, M
Re, V
Denes, P
Placidi, Massimo
Ratti, A
Turner, W C
Datte, P S
Millaud, J E
author_facet Manfredi, P F
Ratti, L
Speziali, V
Traversi, G
Manghisoni, M
Re, V
Denes, P
Placidi, Massimo
Ratti, A
Turner, W C
Datte, P S
Millaud, J E
author_sort Manfredi, P F
collection CERN
description The LHC beam luminosity monitor is based on the following principle. The neutrals that originate in LHC at every PP interaction develop showers of minimum ionizing particles in the absorbers placed in front of the separation dipoles. The shower energy, measured by suitable detectors in the absorbers is proportional to the number of neutral particles and, therefore, to the luminosity. The principle lends itself to a luminosity measurement on a bunch-by-bunch basis. However, to make such a measurement feasible, the system must comply with extremely stringent requirements. Its speed of operation must match the 40 MHz bunch repetition rate of LHC. Besides, the detector must stand extremely high radiation doses. This paper discusses the solutions adopted to comply with these requirements.
id cern-802342
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2004
record_format invenio
spelling cern-8023422019-09-30T06:29:59Zdoi:10.1016/j.nima.2003.11.069http://cds.cern.ch/record/802342engManfredi, P FRatti, LSpeziali, VTraversi, GManghisoni, MRe, VDenes, PPlacidi, MassimoRatti, ATurner, W CDatte, P SMillaud, J EThe readout of the LHC beam luminosity monitor: Accurate shower energy measurements at a 40 MHz repetition rateParticle PhysicsThe LHC beam luminosity monitor is based on the following principle. The neutrals that originate in LHC at every PP interaction develop showers of minimum ionizing particles in the absorbers placed in front of the separation dipoles. The shower energy, measured by suitable detectors in the absorbers is proportional to the number of neutral particles and, therefore, to the luminosity. The principle lends itself to a luminosity measurement on a bunch-by-bunch basis. However, to make such a measurement feasible, the system must comply with extremely stringent requirements. Its speed of operation must match the 40 MHz bunch repetition rate of LHC. Besides, the detector must stand extremely high radiation doses. This paper discusses the solutions adopted to comply with these requirements.oai:cds.cern.ch:8023422004
spellingShingle Particle Physics
Manfredi, P F
Ratti, L
Speziali, V
Traversi, G
Manghisoni, M
Re, V
Denes, P
Placidi, Massimo
Ratti, A
Turner, W C
Datte, P S
Millaud, J E
The readout of the LHC beam luminosity monitor: Accurate shower energy measurements at a 40 MHz repetition rate
title The readout of the LHC beam luminosity monitor: Accurate shower energy measurements at a 40 MHz repetition rate
title_full The readout of the LHC beam luminosity monitor: Accurate shower energy measurements at a 40 MHz repetition rate
title_fullStr The readout of the LHC beam luminosity monitor: Accurate shower energy measurements at a 40 MHz repetition rate
title_full_unstemmed The readout of the LHC beam luminosity monitor: Accurate shower energy measurements at a 40 MHz repetition rate
title_short The readout of the LHC beam luminosity monitor: Accurate shower energy measurements at a 40 MHz repetition rate
title_sort readout of the lhc beam luminosity monitor: accurate shower energy measurements at a 40 mhz repetition rate
topic Particle Physics
url https://dx.doi.org/10.1016/j.nima.2003.11.069
http://cds.cern.ch/record/802342
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