The lhcf detector at the cern large hadron collider

O. Adriani, L. Bonechi, M. Bongi, G. Castellini, R. D'Alessandro, D. A. Faus, K. Fukui, M. Grandi, M. Haguenauer, Y. Itow, K. Kasahara, D. Macina, T. Mase, K. Masuda, Y. Matsubara, H. Menjo, M. Mizuishi, Y. Muraki, P. Papini, A. L. Perrot & 12 others S. Ricciarini, T. Sako, Y. Shimizu, K. Taki, T. Tamura, Shoji Torii, A. Tricomi, W. C. Turner, J. Velasco, A. Viciani, H. Watanabe, K. Yoshida

    Research output: Contribution to journalArticle

    98 Citations (Scopus)

    Abstract

    LHCf is an experiment dedicated to the measurement of neutral particles emitted in the very forward region of LHC collisions. The physics goal is to provide data for calibrating the hadron interaction models that are used in the study of Extremely High-Energy Cosmic-Rays. This is possible since the laboratory equivalent collision energy of LHC is 1017 eV. Two LHCf detectors, consisting of imaging calorimeters made of tungsten plates, plastic scintillator and position sensitive sensors, are installed at zero degree collision angle ±140 m from an interaction point (IP). Although the lateral dimensions of these calorimeters are very compact, ranging from 20 mmx20 mm to 40 mmx40 mm, the energy resolution is expected to be better than 6% and the position resolution better than 0.2 mm for γ-rays with energy from 100 GeV to 7 TeV. This has been confirmed by test beam results at the CERN SPS. These calorimeters can measure particles emitted in the pseudo rapidity range n >8.4. Detectors, data acquisition and electronics are optimized to operate during the early phase of the LHC commissioning with luminosity below 10 30 cm-2s-1. LHCf is expected to obtain data to compare with the major hadron interaction models within a week or so of operation at luminosity ∼ 1029 cm-2s-1. After ∼10 days of operation at luminosity <∼-41029cm -2s-1, the light output of the plastic scintillators is expected to degrade by ∼10% due to radiation damage. This degradation will be monitored and corrected for using calibration pulses from a laser.

    Original languageEnglish
    Article numberS08006
    JournalJournal of Instrumentation
    Volume3
    Issue number8
    DOIs
    Publication statusPublished - 2008

    Fingerprint

    Calorimeter
    Colliding beam accelerators
    Calorimeters
    Luminance
    Scintillator
    Collision
    Detector
    Detectors
    calorimeters
    Phosphors
    Plastics
    detectors
    luminosity
    Energy
    scintillation counters
    collisions
    Radiation Damage
    Point Interactions
    Commissioning
    Cosmic rays

    Keywords

    • Analysis and statistical methods
    • Calorimeters
    • Data acquisition concepts
    • Detector alignment and calibration methods
    • Detector control systems
    • Front-end electronics for detector readout
    • Gamma detectors
    • Overall mechanics design
    • Particle detectors
    • Particle identification methods
    • Particle tracking detectors
    • Pattern recognition, cluster finding, calibration and fitting methods
    • Photon detectors for UV, visible and IR photons
    • Radiation damage to detector materials
    • Scintillators and scintillating fibers and light guides
    • Scintillators, scintillation and light emission processes
    • Simulation methods and programs
    • Solid state detectors
    • Trigger concepts and systems

    ASJC Scopus subject areas

    • Instrumentation
    • Mathematical Physics

    Cite this

    Adriani, O., Bonechi, L., Bongi, M., Castellini, G., D'Alessandro, R., Faus, D. A., ... Yoshida, K. (2008). The lhcf detector at the cern large hadron collider. Journal of Instrumentation, 3(8), [S08006]. https://doi.org/10.1088/1748-0221/3/08/S08006

    The lhcf detector at the cern large hadron collider. / Adriani, O.; Bonechi, L.; Bongi, M.; Castellini, G.; D'Alessandro, R.; Faus, D. A.; Fukui, K.; Grandi, M.; Haguenauer, M.; Itow, Y.; Kasahara, K.; Macina, D.; Mase, T.; Masuda, K.; Matsubara, Y.; Menjo, H.; Mizuishi, M.; Muraki, Y.; Papini, P.; Perrot, A. L.; Ricciarini, S.; Sako, T.; Shimizu, Y.; Taki, K.; Tamura, T.; Torii, Shoji; Tricomi, A.; Turner, W. C.; Velasco, J.; Viciani, A.; Watanabe, H.; Yoshida, K.

    In: Journal of Instrumentation, Vol. 3, No. 8, S08006, 2008.

    Research output: Contribution to journalArticle

    Adriani, O, Bonechi, L, Bongi, M, Castellini, G, D'Alessandro, R, Faus, DA, Fukui, K, Grandi, M, Haguenauer, M, Itow, Y, Kasahara, K, Macina, D, Mase, T, Masuda, K, Matsubara, Y, Menjo, H, Mizuishi, M, Muraki, Y, Papini, P, Perrot, AL, Ricciarini, S, Sako, T, Shimizu, Y, Taki, K, Tamura, T, Torii, S, Tricomi, A, Turner, WC, Velasco, J, Viciani, A, Watanabe, H & Yoshida, K 2008, 'The lhcf detector at the cern large hadron collider', Journal of Instrumentation, vol. 3, no. 8, S08006. https://doi.org/10.1088/1748-0221/3/08/S08006
    Adriani O, Bonechi L, Bongi M, Castellini G, D'Alessandro R, Faus DA et al. The lhcf detector at the cern large hadron collider. Journal of Instrumentation. 2008;3(8). S08006. https://doi.org/10.1088/1748-0221/3/08/S08006
    Adriani, O. ; Bonechi, L. ; Bongi, M. ; Castellini, G. ; D'Alessandro, R. ; Faus, D. A. ; Fukui, K. ; Grandi, M. ; Haguenauer, M. ; Itow, Y. ; Kasahara, K. ; Macina, D. ; Mase, T. ; Masuda, K. ; Matsubara, Y. ; Menjo, H. ; Mizuishi, M. ; Muraki, Y. ; Papini, P. ; Perrot, A. L. ; Ricciarini, S. ; Sako, T. ; Shimizu, Y. ; Taki, K. ; Tamura, T. ; Torii, Shoji ; Tricomi, A. ; Turner, W. C. ; Velasco, J. ; Viciani, A. ; Watanabe, H. ; Yoshida, K. / The lhcf detector at the cern large hadron collider. In: Journal of Instrumentation. 2008 ; Vol. 3, No. 8.
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    AU - Adriani, O.

    AU - Bonechi, L.

    AU - Bongi, M.

    AU - Castellini, G.

    AU - D'Alessandro, R.

    AU - Faus, D. A.

    AU - Fukui, K.

    AU - Grandi, M.

    AU - Haguenauer, M.

    AU - Itow, Y.

    AU - Kasahara, K.

    AU - Macina, D.

    AU - Mase, T.

    AU - Masuda, K.

    AU - Matsubara, Y.

    AU - Menjo, H.

    AU - Mizuishi, M.

    AU - Muraki, Y.

    AU - Papini, P.

    AU - Perrot, A. L.

    AU - Ricciarini, S.

    AU - Sako, T.

    AU - Shimizu, Y.

    AU - Taki, K.

    AU - Tamura, T.

    AU - Torii, Shoji

    AU - Tricomi, A.

    AU - Turner, W. C.

    AU - Velasco, J.

    AU - Viciani, A.

    AU - Watanabe, H.

    AU - Yoshida, K.

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    N2 - LHCf is an experiment dedicated to the measurement of neutral particles emitted in the very forward region of LHC collisions. The physics goal is to provide data for calibrating the hadron interaction models that are used in the study of Extremely High-Energy Cosmic-Rays. This is possible since the laboratory equivalent collision energy of LHC is 1017 eV. Two LHCf detectors, consisting of imaging calorimeters made of tungsten plates, plastic scintillator and position sensitive sensors, are installed at zero degree collision angle ±140 m from an interaction point (IP). Although the lateral dimensions of these calorimeters are very compact, ranging from 20 mmx20 mm to 40 mmx40 mm, the energy resolution is expected to be better than 6% and the position resolution better than 0.2 mm for γ-rays with energy from 100 GeV to 7 TeV. This has been confirmed by test beam results at the CERN SPS. These calorimeters can measure particles emitted in the pseudo rapidity range n >8.4. Detectors, data acquisition and electronics are optimized to operate during the early phase of the LHC commissioning with luminosity below 10 30 cm-2s-1. LHCf is expected to obtain data to compare with the major hadron interaction models within a week or so of operation at luminosity ∼ 1029 cm-2s-1. After ∼10 days of operation at luminosity <∼-41029cm -2s-1, the light output of the plastic scintillators is expected to degrade by ∼10% due to radiation damage. This degradation will be monitored and corrected for using calibration pulses from a laser.

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    KW - Calorimeters

    KW - Data acquisition concepts

    KW - Detector alignment and calibration methods

    KW - Detector control systems

    KW - Front-end electronics for detector readout

    KW - Gamma detectors

    KW - Overall mechanics design

    KW - Particle detectors

    KW - Particle identification methods

    KW - Particle tracking detectors

    KW - Pattern recognition, cluster finding, calibration and fitting methods

    KW - Photon detectors for UV, visible and IR photons

    KW - Radiation damage to detector materials

    KW - Scintillators and scintillating fibers and light guides

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    KW - Trigger concepts and systems

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