R&D studies of the ATLAS LAr calorimeter readout electronics for super-LHC

Journal Article · Mon Nov 01 04:00:00 EDT 2010 · Nuclear Instruments and Methods in Physics Research, Section A

DOI:https://doi.org/10.1016/j.nima.2010.02.215· OSTI ID:1019446

Chen, H

The ATLAS Liquid Argon (LAr) calorimeters are high precision, high sensitivity and high granularity detectors. A total of 182,468 signals are digitized and processed real-time on detector, to provide energy and time deposited in each detector element at every occurrence of the L1-trigger. The current readout electronics will need to be upgraded to sustain the higher radiation levels expected with the increase of a factor 10 in luminosity at the LHC in the years {approx}2017. A completely innovative readout scheme is being developed. The front-end readout will send out data continuously at each bunch crossing through high speed radiation resistant optical links, the data will be processed real-time with the possibility of implementing trigger algorithms. This article is an overview of the R&D activities and architectural studies the ATLAS LAr Calorimeter Group is developing: front-end analog and mixed-signal ASIC design, radiation resistance optical-links in SOS, high-speed back-end processing units based on FPGA architectures and power supply distribution schemes.

• Research Organization: BROOKHAVEN NATIONAL LABORATORY (BNL)
• Sponsoring Organization: DOE - OFFICE OF SCIENCE
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 1019446
• Report Number(s): BNL--94684-2011-JA; KA11-01-021
• Journal Information: Nuclear Instruments and Methods in Physics Research, Section A, Journal Name: Nuclear Instruments and Methods in Physics Research, Section A Journal Issue: 1 Vol. 623; ISSN NIMAER; ISSN 0168-9002
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCURACY
ALGORITHMS
ARGON
AVAILABILITY
CALORIMETERS
DESIGN
DISTRIBUTION
HARDNESS
LUMINOSITY
Liquid argon calorimeter
PHYSICS
PROCESSING
RADIATIONS
Radiation hardness
Readout driver
Readout electronics
SENSITIVITY
VELOCITY