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ATLAS Tile Calorimeter Link Daughterboard
Stockholm University, Faculty of Science, Department of Physics.ORCID iD: 0000-0001-9931-2896
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics.
2019 (English)In: Topical Workshop on Electronics for Particle Physics, Trieste: SISSA, the International School for Advanced Studies , 2019Conference paper, Published paper (Refereed)
Abstract [en]

We have developed an updated Daughterboard design for control and readout of the upgraded ATLAS Hadronic Tile Calorimeter electronics for HL-LHC. In the new design, four SFP+ modules handle: 4×9.6 Gbps uplinks operated by two Kintex Ultrascale+ FPGAs, and 2×4.8 Gbps downlinks operated by two GBTxs. The uplink sends continuous high-speed readout of digitized PMT samples, while the downlink receives control, configuration and LHC timing. Triple Mode Redundancy (TMR), Forward Error Correction (FEC) and CRC (Cyclic Redundancy Check) strategies, plus a double redundant design with radiation tolerant components, minimize single failure points and improves resistance to single-event upsets caused by hadronic radiation. Preliminary TID and NIEL tests were performed following the ATLAS policy on radiation tolerant electronics and those specified in the European Space Components Coordination specification 22900 (ESCC22900).

Place, publisher, year, edition, pages
Trieste: SISSA, the International School for Advanced Studies , 2019.
Series
PoS - Proceedings of Science, E-ISSN 1824-8039 ; 343
Keywords [en]
HL LHC, ATLAS, TileCal, Daughterboard, Radiation Tolerant, TID, NIEL, Kintex Ultrascale+, GBTx, Upgrade
National Category
Accelerator Physics and Instrumentation
Research subject
Physics
Identifiers
URN: urn:nbn:se:su:diva-175230DOI: 10.22323/1.343.0024OAI: oai:DiVA.org:su-175230DiVA, id: diva2:1361451
Conference
Topical Workshop on Electronics for Particle Physics (TWEPP2018), Antwerp, Belgium, 17-21 September, 2018
Available from: 2019-10-16 Created: 2019-10-16 Last updated: 2019-10-23
In thesis
1. Development of the read-out link and control board for the ATLAS Tile Calorimeter Upgrade
Open this publication in new window or tab >>Development of the read-out link and control board for the ATLAS Tile Calorimeter Upgrade
2019 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The Phase-II upgrade plan for the ATLAS Hadronic Tile Calorimeter facing the High-Luminosity LHC (HL-LHC) era includes approximately 1000 radiation tolerant read-out link and control boards (Daughterboards) that will provide full-granularity digital data to a fully-digital trigger system off-detector through multi-Gbps optic fibres. Different Daughterboard (DB) revisions have been developed, each successively aiming to meet the demanding HL-LHC requirements. The DB communicates with the off-detector systems via four 9.6 Gbps uplinks and two 4.8 Gbps downlinks. The DB performs high-speed read-out of digitized Photomultiplier (PMT) samples, while receiving and distributing configuration, control and LHC-synchronous timing to the front-end system. The design aims to minimize radiation-induced errors and enhance data reliability by embracing a fully double redundant design using CERN radiation hard GBTx ASICs and Xilinx FPGAs, implementing Triple Mode Redundancy (TMR), adopting Soft Error Mitigation (SEM) to correct for configuration memory Single Event Upsets (SEU), and employing Cyclic Redundancy Check (CRC) and Forward Error Correction (FEC) in the data format of the uplink and downlink, respectively. Total Ionizing Dose (TID), Non-Ionizing Energy Losses (NIEL) and Single Event Effects (SEE) radiation tests have been performed in order to assess the radiation tolerance strategies followed in the design and to qualify the DB for the HL-LHC requirements according to the ATLAS policy on radiation tolerant electronics. This thesis presents the author's contribution to the development of the DB through the different revisions, the integration of the DB to the Demonstrator and the radiation tests performed aiming to demonstrate the readiness of the DB to withstand the radiation requirements imposed by the HL-LHC. Resulting of this document, the author proposes strategies to be used in the new DB design moving forward the final design to be produced and inserted in ATLAS during the 2024-2026 period.

Place, publisher, year, edition, pages
Stockholm: Department of Physics, Stockholm University, 2019. p. 97
Keywords
HL-LHC, ATLAS, Tile Calorimeter, TileCal, Demonstrator, Daughterboard, Read-out, Digital electronics, Data acquisition, Radiation tolerant, GBTx, TID, NIEL, SEU, SEL, FPGA, Kintex 7, Ultrascale, Ultrascale+, Optic Links
National Category
Accelerator Physics and Instrumentation
Research subject
Physics
Identifiers
urn:nbn:se:su:diva-175246 (URN)978-91-7797-895-4 (ISBN)978-91-7797-896-1 (ISBN)
Public defence
2019-12-10, sal FB54, AlbaNova universitetscentrum, Roslagstullsbacken 21, Stockholm, 09:00 (English)
Opponent
Supervisors
Available from: 2019-11-15 Created: 2019-10-22 Last updated: 2019-11-12Bibliographically approved

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