ALTIROC1, a 20 ps time-resolution ASIC prototype for the ATLAS High Granularity Timing Detector (HGTD) - Archive ouverte HAL Access content directly
Conference Papers Year : 2018

ALTIROC1, a 20 ps time-resolution ASIC prototype for the ATLAS High Granularity Timing Detector (HGTD)

B. Markovic
  • Function : Author
P. Caragiulo
  • Function : Author
A. Dragone
  • Function : Author
K. Koua
  • Function : Author
A.G. Schwartzman
  • Function : Author
D. Su
  • Function : Author
D. Gong
  • Function : Author
Q. Sun
  • Function : Author
J. Ye
W. Zhou
  • Function : Author
R. Casanova
  • Function : Author

Abstract

THE high-luminosity phase of CERN’s Large Hadron Collider (HL-LHC) is foreseen to start in 2026 [1] . The expected increase of the pile-up due to the 200 interactions per bunch crossing will have a severe impact on the physics. A High Granularity Timing Detector (HGTD) is proposed in front of the Liquid Argon End-Cap calorimeters for pile-up mitigation at Level-0 trigger level and in the offline reconstruction. Four layers of very thin (50 µm) Low Gain Avalanche Diodes (LGAD), with a transverse size of 1.3 x 1.3 mm 2 , are foreseen to provide precise timing information for charged and neutral particles with a time resolution of about 30 pico-seconds per MIP.
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Dates and versions

hal-02383737 , version 1 (27-11-2019)

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B. Markovic, S. Conforti, C. de La Taille, G. Martin-Chassard, N. Seguin-Moreau, et al.. ALTIROC1, a 20 ps time-resolution ASIC prototype for the ATLAS High Granularity Timing Detector (HGTD). 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov 2018, Sydney, Australia. pp.8824723, ⟨10.1109/NSSMIC.2018.8824723⟩. ⟨hal-02383737⟩
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