ATLAS Canada Alberta Carleton McGill Montréal Simon Fraser Toronto TRIUMF UBC Victoria York 33 University/Lab.physicists Over 88 people, including Engineers, Technicians, Students Includes 3 IPP Research Scientists Educational Role 20 UG Summer Students 21 Graduate Students 13 Post Docs Focus on Liquid Argon Calorimetry 4 NSERC Funded Construction Projects Endcap Hadronic Calorimeter Forward Hadronic Calorimeter Front-End-Board Electronics Endcap Signal Cryogenics Feedthroughs Construction completed last year End of Installation this year Commissioning in 2006 Ongoing/Future Activities Analysis of Beam Tests Calorimeter Calibration Preparation for Physics Event Filter Algorithms/Ops Computing - soft/hard Beam Condition Monitors 11/18/2018

Why Is It Called a Calorimeter? Liquid Argon/Metal Charged Particle Kinetic Energy of Particle Converted to Ionization Of Liquid Argon Electrical Signal Proportional to Incoming Energy Why Is It Called a Calorimeter? Readout Electronics 11/18/2018

Calorimeters as Physics Tools Forward Jet Identification

University of Victoria Cryogenic Signal Feedthroughs Over 180k signal channels in the LAr calorimeter High density and reliability required: 1920 pins per feedthrough unit University of Victoria TRIUMF 11/18/2018

Hadronic Endcap Calorimeter Front Wheel 2 Front and Rear Modules Rear Wheel Wheel Assembly Composed of 2 wheels per end Front wheel:67 t 25 mm Cu plates Back wheel:90 t 50 mm Cu plates TRIUMF, Alberta 11/18/2018

HEC 2 A-wheel on the insertion stand, Aug. 2004 11/18/2018

Tungsten-Copper Internal Structure Forward Calorimeter Four Modules Each 0.9 m Diam, 0.45 m long Total 20 Tonnes Tungsten Carleton, Toronto FCAL1 FCAL3 FCAL2 Plug3 Completed Module Tungsten-Copper Internal Structure 11/18/2018

LAr Forward Calorimeters FCAL Carleton, Toronto 11/18/2018

EndCap A Last HEC wheel inserted Oct 04, FCal insertion early 2005 11/18/2018

EndCap C … Final Integration Closed Aug 04, cold tested in B180, now at Point 1 11/18/2018

Trigger, DAQ and Detector Control Calo MuTrCh Other detectors 40 MHz 40 MHz 75 kHz ~2 kHz ~ 200 Hz LV L1 D E T R/O Read-Out Drivers FE Pipelines Read-Out Sub-systems Read-Out Buffers Read-Out Links 2.5 ms LVL2 ~ 10 ms ROIB L2P L2SV L2N RoI RoI data = 1-2% requests Lvl1 acc = 75 kHz ROD ROD ROD 120 GB/s ~ 300 MB/s ~2+4 GB/s ROS 120 GB/s ROB H L T D A T F L O W RoI Builder L2 Supervisor L2 N/work L2 Proc Unit EB SFI EBN DFM Lvl2 acc = ~2 kHz Event Building N/work Dataflow Manager Sub-Farm Input Event Builder EFN SFO Event Filter EFP ~ sec ~4 GB/s EFacc = ~0.2 kHz Event Filter N/work Sub-Farm Output Event Filter Processors 11/18/2018

High Level Trigger Principal focus Combined Testbeam LVL2 muon slice fully integrated in H8 combined testbeam Fast LVL2 m reconstruction, and detector description infrastructure integrated TrigMoore EF m reconstruction integrated Steering of TrigMoore from LVL2 result implemented These integration tests are the first demonstration of a complete HLT chain with algorithms in an online setup, reading out directly detectors ID LVL2 tracking algorithms integrated and run in the testbeam CaloRec in EF Timing algorithm & data preparation timing studies Extensive testing of the event selection steering component Online histogramming 11/18/2018

TDAQ Setup in Combined Test Beam LVL1 DFM gateway in bdg.513 SFI Tracker Calo Muon det. LVL1 calo ROS RPC TGC CSC LVL1 mu Tile TRT SCT Pixel LAr MDT monitoring run control pROS data network (GbE) MAGNI farm in bdg. 513 SFO remote farms storage CASTOR (IT) LVL2 farm in H8 EF farm Compared to ATLAS ~10% of DAQ ~2% of HLT just counting PCs… 11/18/2018

LAr Front End Electronics Development and fabrication on track for most components, boards Issues: - Still have a delay in the rad-hard ST negative voltage regulators. - Rad-tolerant low voltage power supplies finally in fabrication - Problem encountered with a special timing circuit (QPLL) FE board production is currently stopped Rad-tolerant FE board (1524 boards, each 128 channels) Power supply Front-end crate electronics 11/18/2018

Front-End Board Schedule Switched Capacitor Array Light Blue is schedule before Delay at Bottom 2003 October: full 14 board test. 2004 March: start of front-end board production 2004 November: begin front-end board installation (1.25 days/crate) Stopped late summer due to QPLL problems Solution found – mezzanine board Resume Production Feb 2005 Six Month Delay No Final Schedule at present for Installation Not affected by production delay Jan 05 – Aug 05: Phase 1 – EM barrel at truck Aug 05 – Sep 05 : Phase 2 – EM Barrel at IP Dec 05 – Jul 06: Endcap C Feb 06 – Aug 06: Endcap A SCA Controller 11/18/2018

Calorimeter Front-End-Board Electronics Radiation Hard Logic to Control Calorimeter Signal Readout Design, Testing, Implementation Alberta 11/18/2018