Design and Evaluation of the LAr Trigger Digitizer Board in the ATLAS Phase-I Upgrade

Besin, Dominique; Chen, Hucheng; Chen, Kai; Citterio, Mauro; Deschamps, Herve; Grabas, Aude; Lanni, Francesco; Latorre, Stefano; Lazzaroni, Massimo; Liu, Hongbin; Pleier, Marc-Andre; Schwemling, Phillippe; Simion, Stefan; Tang, Shaochun; Xu, Hao; Zhu, Heling

doi:10.1109/TNS.2019.2924795

Title: Design and Evaluation of the LAr Trigger Digitizer Board in the ATLAS Phase-I Upgrade

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Abstract

The Phase-I upgrade of the trigger readout electronics for the ATLAS Liquid Argon (LAr) calorimeters will be installed during the second long shutdown of the Large Hadron Collider (LHC) in 2019-2020 which will enable enhanced instantaneous luminosities during LHC Run 3 from 2021 through 2023. In this trigger upgrade, so-called supercells are introduced to provide higher granularity, higher resolution and longitudinal shower shape information from the LAr calorimeters to the Level-1 trigger processors. A new LAr Trigger Digitizer Board (LTDB) will process and digitize up to 320 channels of supercell signals, and transmit them via 40 fiber optical links to the back end where the data are further processed and transmitted to the trigger processors. Five pairs of bidirectional GBT links are used for slow control and monitoring between LTDB and the Front-End LInk eXchange (FELIX) in the ATLAS Trigger and Data Acquisition (TDAQ) system. Here, the LTDB also outputs 64 summed analog legacy signals to the current Tower Builder Board via a new baseplane. A test system for the production of 124 LTDBs has been developed, supporting configuration and calibration of all ASICs

Authors:

Besin, Dominique ^[1];

^[2];

^[2]; Citterio, Mauro ^[3]; Deschamps, Herve ^[1]; Grabas, Aude ^[1]; Lanni, Francesco ^[2]; Latorre, Stefano ^[3];

^[3]; Liu, Hongbin ^[2];

^[2]; Schwemling, Phillippe ^[1]; Simion, Stefan ^[4];

^[2]; Xu, Hao ^[2]; Zhu, Heling ^[5]

CEA-Saclay, Paris (France)
Brookhaven National Lab. (BNL), Upton, NY (United States)
INFN Milano, Milan (Italy)
LAL, Orsay (France)
Univ. of Science and Technology of China, Hefei (China)

Publication Date:: Mon Jun 24 00:00:00 EDT 2019

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

OSTI Identifier:: 1566862

Report Number(s):: BNL-212116-2019-JAAM
Journal ID: ISSN 0018-9499; TRN: US2001002

Grant/Contract Number:: SC0012704

Resource Type:: Accepted Manuscript

Journal Name:: IEEE Transactions on Nuclear Science

Additional Journal Information:: Journal Volume: 66; Journal Issue: 8; Journal ID: ISSN 0018-9499

Publisher:: IEEE

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ATLAS; Liquid Argon Calorimeters; LTDB; Trigger Electronics

Citation Formats


                    Besin, Dominique, Chen, Hucheng, Chen, Kai, Citterio, Mauro, Deschamps, Herve, Grabas, Aude, Lanni, Francesco, Latorre, Stefano, Lazzaroni, Massimo, Liu, Hongbin, Pleier, Marc-Andre, Schwemling, Phillippe, Simion, Stefan, Tang, Shaochun, Xu, Hao, and Zhu, Heling. Design and Evaluation of the LAr Trigger Digitizer Board in the ATLAS Phase-I Upgrade.  United States: N. p., 2019. 
Web.  doi:10.1109/TNS.2019.2924795.

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                    Besin, Dominique, Chen, Hucheng, Chen, Kai, Citterio, Mauro, Deschamps, Herve, Grabas, Aude, Lanni, Francesco, Latorre, Stefano, Lazzaroni, Massimo, Liu, Hongbin, Pleier, Marc-Andre, Schwemling, Phillippe, Simion, Stefan, Tang, Shaochun, Xu, Hao, & Zhu, Heling. Design and Evaluation of the LAr Trigger Digitizer Board in the ATLAS Phase-I Upgrade.  United States.  https://doi.org/10.1109/TNS.2019.2924795

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                    Besin, Dominique, Chen, Hucheng, Chen, Kai, Citterio, Mauro, Deschamps, Herve, Grabas, Aude, Lanni, Francesco, Latorre, Stefano, Lazzaroni, Massimo, Liu, Hongbin, Pleier, Marc-Andre, Schwemling, Phillippe, Simion, Stefan, Tang, Shaochun, Xu, Hao, and Zhu, Heling. Mon .  
"Design and Evaluation of the LAr Trigger Digitizer Board in the ATLAS Phase-I Upgrade".  United States.  https://doi.org/10.1109/TNS.2019.2924795.  https://www.osti.gov/servlets/purl/1566862.

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@article{osti_1566862,

  title        = {Design and Evaluation of the LAr Trigger Digitizer Board in the ATLAS Phase-I Upgrade},

  author       = {Besin, Dominique and Chen, Hucheng and Chen, Kai and Citterio, Mauro and Deschamps, Herve and Grabas, Aude and Lanni, Francesco and Latorre, Stefano and Lazzaroni, Massimo and Liu, Hongbin and Pleier, Marc-Andre and Schwemling, Phillippe and Simion, Stefan and Tang, Shaochun and Xu, Hao and Zhu, Heling},

  abstractNote = {The Phase-I upgrade of the trigger readout electronics for the ATLAS Liquid Argon (LAr) calorimeters will be installed during the second long shutdown of the Large Hadron Collider (LHC) in 2019-2020 which will enable enhanced instantaneous luminosities during LHC Run 3 from 2021 through 2023. In this trigger upgrade, so-called supercells are introduced to provide higher granularity, higher resolution and longitudinal shower shape information from the LAr calorimeters to the Level-1 trigger processors. A new LAr Trigger Digitizer Board (LTDB) will process and digitize up to 320 channels of supercell signals, and transmit them via 40 fiber optical links to the back end where the data are further processed and transmitted to the trigger processors. Five pairs of bidirectional GBT links are used for slow control and monitoring between LTDB and the Front-End LInk eXchange (FELIX) in the ATLAS Trigger and Data Acquisition (TDAQ) system. Here, the LTDB also outputs 64 summed analog legacy signals to the current Tower Builder Board via a new baseplane. A test system for the production of 124 LTDBs has been developed, supporting configuration and calibration of all ASICs},

  doi          = {10.1109/TNS.2019.2924795},

  journal      = {IEEE Transactions on Nuclear Science},

  number       = 8,

  volume       = 66,

  place        = {United States},

  year         = {Mon Jun 24 00:00:00 EDT 2019},

  month        = {Mon Jun 24 00:00:00 EDT 2019}

}

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