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Phase-I Trigger Readout Electronics Upgrade for the ATLAS Liquid-Argon Calorimeters

Journal Article · · Springer Proceedings in Physics
 [1]
  1. Univ. degli Studi di Milano (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Milano (Italy); ATLAS Liquid Argon Calorimeter Group, et. al
The Phase-I trigger readout electronics upgrade of the ATLAS Liquid Argon calorimeters enhances the physics reach of the experiment during the upcoming operation at increasing Large Hadron Collider luminosities. The new system, installed during the second Large Hadron Collider Long Shutdown, increases the trigger readout granularity by up to a factor of ten as well as its precision and range. Consequently, the background rejection at trigger level is improved through enhanced filtering algorithms utilizing the additional information for topological discrimination of electromagnetic and hadronic shower shapes. Therefore, this paper presents the final designs of the new electronic elements, their custom electronic devices, the procedures used to validate their proper functioning, and the performance achieved during the commissioning of this system.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
ATLAS Liquid Argon Calorimeter Group
Grant/Contract Number:
SC0012704
OSTI ID:
1856768
Report Number(s):
BNL-222884-2022-JAAM
Journal Information:
Springer Proceedings in Physics, Journal Name: Springer Proceedings in Physics Vol. 212; ISSN 0930-8989
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

References (4)

LOCx2, a low-latency, low-overhead, 2 × 5.12-Gbps transmitter ASIC for the ATLAS Liquid Argon Calorimeter trigger upgrade journal February 2016
Radiation qualification of the front-end electronics for the readout of the ATLAS liquid argon calorimeters journal October 2008
The design of 8-Gbps VCSEL drivers for ATLAS liquid Argon calorimeter upgrade journal January 2013
Development of the trigger readout system for the phase-I upgrade of the ATLAS Liquid Argon calorimeters conference October 2015

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