The LHCf Si tracking system

Implementation and performances

S. Ricciarini, O. Adriani, L. Bonechi, M. Bongi, G. Castellini, R. D'Alessandro, K. Fukui, M. Haguenauer, Y. Itow, K. Kasahara, D. Macina, T. Mase, K. Masuda, Y. Matsubara, H. Menjo, M. Mizuishi, Y. Muraki, M. Nakai, P. Papini, A. L. Perrot & 9 others T. Sako, Y. Shimizu, K. Taki, T. Tamura, S. Torii, A. Tricomi, W. C. Turner, A. Viciani, K. Yoshida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The LHCf experiment is formed by two sampling EM calorimeters to study energy and transverse momenta of photons and π0 emitted from pp collisions at LHC (14 TeV center-of-mass energy) along both directions in the very-forward region; this measurement will give a precise calibration for hadron interaction models describing air showers initiated by very high energy cosmic-rays. The Si tracking system of LHCf is composed of 4 pairs of single-sided microstrip sensors (160 μm read-out pitch), integrated within one of the two calorimeters, interleaved with calorimeter layers (W absorber and scintillator planes); its purpose is to determine the shower transverse profile with uncertainty of few tens microns. The 3072 microstrips are read-out through highdynamic- range (400 MIP nominal) PACE3 chips, originally designed for the CMS Si Preshower detector; PACE3 output signals are digitized and processed by a set of fast dedicated ADC-FPGA electronics boards and transmitted to the LHCf storage system via optic fiber channels. The performances of the Si tracking system were measured at the CERN SPS H4 beam line in 2007, using 50-200 GeV electrons, 150-350 GeV protons and 100-150 GeV muons; the results of this beam test confirmed the spatial resolution expected from design and its energy dependence: for incident electrons in the energy range of interest (above 100 GeV) the resolution is better than 100 micron and improves with increasing energy.

Original languageEnglish
Title of host publication31st International Cosmic Ray Conference, ICRC 2009
PublisherUniversity of Lodz
Publication statusPublished - 2009
Event31st International Cosmic Ray Conference, ICRC 2009 - Lodz
Duration: 2009 Jul 72009 Jul 15

Other

Other31st International Cosmic Ray Conference, ICRC 2009
CityLodz
Period09/7/709/7/15

Fingerprint

calorimeters
energy
cosmic ray showers
showers
transverse momentum
scintillation counters
center of mass
muons
cosmic rays
fiber optics
absorbers
electrons
spatial resolution
kinetic energy
sampling
chips
collisions
protons
output
sensors

Keywords

  • Electromagnetic shower
  • LHC
  • Tracking system

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Ricciarini, S., Adriani, O., Bonechi, L., Bongi, M., Castellini, G., D'Alessandro, R., ... Yoshida, K. (2009). The LHCf Si tracking system: Implementation and performances. In 31st International Cosmic Ray Conference, ICRC 2009 University of Lodz.

The LHCf Si tracking system : Implementation and performances. / Ricciarini, S.; Adriani, O.; Bonechi, L.; Bongi, M.; Castellini, G.; D'Alessandro, R.; Fukui, K.; Haguenauer, M.; Itow, Y.; Kasahara, K.; Macina, D.; Mase, T.; Masuda, K.; Matsubara, Y.; Menjo, H.; Mizuishi, M.; Muraki, Y.; Nakai, M.; Papini, P.; Perrot, A. L.; Sako, T.; Shimizu, Y.; Taki, K.; Tamura, T.; Torii, S.; Tricomi, A.; Turner, W. C.; Viciani, A.; Yoshida, K.

31st International Cosmic Ray Conference, ICRC 2009. University of Lodz, 2009.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ricciarini, S, Adriani, O, Bonechi, L, Bongi, M, Castellini, G, D'Alessandro, R, Fukui, K, Haguenauer, M, Itow, Y, Kasahara, K, Macina, D, Mase, T, Masuda, K, Matsubara, Y, Menjo, H, Mizuishi, M, Muraki, Y, Nakai, M, Papini, P, Perrot, AL, Sako, T, Shimizu, Y, Taki, K, Tamura, T, Torii, S, Tricomi, A, Turner, WC, Viciani, A & Yoshida, K 2009, The LHCf Si tracking system: Implementation and performances. in 31st International Cosmic Ray Conference, ICRC 2009. University of Lodz, 31st International Cosmic Ray Conference, ICRC 2009, Lodz, 09/7/7.
Ricciarini S, Adriani O, Bonechi L, Bongi M, Castellini G, D'Alessandro R et al. The LHCf Si tracking system: Implementation and performances. In 31st International Cosmic Ray Conference, ICRC 2009. University of Lodz. 2009
Ricciarini, S. ; Adriani, O. ; Bonechi, L. ; Bongi, M. ; Castellini, G. ; D'Alessandro, R. ; Fukui, K. ; Haguenauer, M. ; Itow, Y. ; Kasahara, K. ; Macina, D. ; Mase, T. ; Masuda, K. ; Matsubara, Y. ; Menjo, H. ; Mizuishi, M. ; Muraki, Y. ; Nakai, M. ; Papini, P. ; Perrot, A. L. ; Sako, T. ; Shimizu, Y. ; Taki, K. ; Tamura, T. ; Torii, S. ; Tricomi, A. ; Turner, W. C. ; Viciani, A. ; Yoshida, K. / The LHCf Si tracking system : Implementation and performances. 31st International Cosmic Ray Conference, ICRC 2009. University of Lodz, 2009.
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AU - Ricciarini, S.

AU - Adriani, O.

AU - Bonechi, L.

AU - Bongi, M.

AU - Castellini, G.

AU - D'Alessandro, R.

AU - Fukui, K.

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 - Nakai, M.

AU - Papini, P.

AU - Perrot, A. L.

AU - Sako, T.

AU - Shimizu, Y.

AU - Taki, K.

AU - Tamura, T.

AU - Torii, S.

AU - Tricomi, A.

AU - Turner, W. C.

AU - Viciani, A.

AU - Yoshida, K.

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N2 - The LHCf experiment is formed by two sampling EM calorimeters to study energy and transverse momenta of photons and π0 emitted from pp collisions at LHC (14 TeV center-of-mass energy) along both directions in the very-forward region; this measurement will give a precise calibration for hadron interaction models describing air showers initiated by very high energy cosmic-rays. The Si tracking system of LHCf is composed of 4 pairs of single-sided microstrip sensors (160 μm read-out pitch), integrated within one of the two calorimeters, interleaved with calorimeter layers (W absorber and scintillator planes); its purpose is to determine the shower transverse profile with uncertainty of few tens microns. The 3072 microstrips are read-out through highdynamic- range (400 MIP nominal) PACE3 chips, originally designed for the CMS Si Preshower detector; PACE3 output signals are digitized and processed by a set of fast dedicated ADC-FPGA electronics boards and transmitted to the LHCf storage system via optic fiber channels. The performances of the Si tracking system were measured at the CERN SPS H4 beam line in 2007, using 50-200 GeV electrons, 150-350 GeV protons and 100-150 GeV muons; the results of this beam test confirmed the spatial resolution expected from design and its energy dependence: for incident electrons in the energy range of interest (above 100 GeV) the resolution is better than 100 micron and improves with increasing energy.

AB - The LHCf experiment is formed by two sampling EM calorimeters to study energy and transverse momenta of photons and π0 emitted from pp collisions at LHC (14 TeV center-of-mass energy) along both directions in the very-forward region; this measurement will give a precise calibration for hadron interaction models describing air showers initiated by very high energy cosmic-rays. The Si tracking system of LHCf is composed of 4 pairs of single-sided microstrip sensors (160 μm read-out pitch), integrated within one of the two calorimeters, interleaved with calorimeter layers (W absorber and scintillator planes); its purpose is to determine the shower transverse profile with uncertainty of few tens microns. The 3072 microstrips are read-out through highdynamic- range (400 MIP nominal) PACE3 chips, originally designed for the CMS Si Preshower detector; PACE3 output signals are digitized and processed by a set of fast dedicated ADC-FPGA electronics boards and transmitted to the LHCf storage system via optic fiber channels. The performances of the Si tracking system were measured at the CERN SPS H4 beam line in 2007, using 50-200 GeV electrons, 150-350 GeV protons and 100-150 GeV muons; the results of this beam test confirmed the spatial resolution expected from design and its energy dependence: for incident electrons in the energy range of interest (above 100 GeV) the resolution is better than 100 micron and improves with increasing energy.

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KW - LHC

KW - Tracking system

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M3 - Conference contribution

BT - 31st International Cosmic Ray Conference, ICRC 2009

PB - University of Lodz

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