PoS - Proceedings of Science
Volume 382 - The Eighth Annual Conference on Large Hadron Collider Physics (LHCP2020) - Poster session
Development of the ATLAS Liquid Argon Calorimeter Readout Electronics for the HL-LHC
P.K. Devanshu
Full text: pdf
Pre-published on: December 10, 2020
Published on: January 11, 2021
The ATLAS Liquid Argon (LAr) Calorimeter readout electronics will be upgraded to meet the new trigger and data-acquisition (TDAQ) buffering requirements and to withstand the high expected radiation doses at the high-luminosity LHC. The triangular calorimeter signals are amplified and shaped by analog electronics over a dynamic range of 16 bits, with low noise and excellent linearity. Development of low-power preamplifiers and shapers to meet these requirements in130nm CMOS technology are ongoing. Development of a radiation-hard, low-power, 14-bitpipeline+SAR analog-to-digital converter (ADC) to digitize the analog signals in 65nm CMOS technology is ongoing. Characterization of the prototypes of the front-end components show good promise to fulfill all the requirements. The signals will be sent at 40 MHz to the off-detector electronics, where FPGAs connected through high-speed links will perform energy and time reconstruction through the application of corrections and digital filtering. Reduced data are sent with low latency to the first-level trigger, while the full data are buffered until the reception of trigger accept signals. The data-processing, control and timing functions will be realized by dedicated boards connected through ATCA crates. Results of tests of prototypes of front-end components will be presented, along with design studies on the performance of the off-detector readout system.
DOI: https://doi.org/10.22323/1.382.0233
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.