ATLAS Canada Alberta 33 UniversityLab physicists Over Carleton

ATLAS Canada Alberta 33 University/Lab. physicists Over Carleton 88 people, including Engineers, Mc. Gill Technicians, Students Montréal Simon Fraser Includes 3 IPP Research Scientists Toronto TRIUMF Educational Role UBC 20 UG Summer Students Victoria 21 Graduate Students York 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 6/18/2021 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

Why Is It Called a Calorimeter? Charged Particle Liquid Argon/Metal Kinetic Energy of Particle Converted to Ionization Of Liquid Argon 6/18/2021 Electrical Signal Proportional to Incoming Energy Readout Electronics

Calorimeters as Physics Tools Forward Jet Identification

Cryogenic Signal Feedthroughs Over 180 k signal channels in the LAr calorimeter High density and reliability required: 1920 pins per feedthrough unit University of Victoria TRIUMF 6/18/2021

Hadronic Endcap Calorimeter Front Wheel 2 Front and Rear Modules Rear 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 6/18/2021

HEC 2 A-wheel on the insertion stand, Aug. 2004 6/18/2021

Four Modules Forward Calorimeter Each 0. 9 m Diam, 0. 45 m long Total 20 Tonnes Tungsten Carleton, Toronto Completed Module 6/18/2021 FCAL 3 FCAL 2 Plug 3 Tungsten-Copper Internal Structure

LAr Forward Calorimeters • FCAL Carleton, Toronto 6/18/2021

End. Cap A Will see cold test in B 180 HEC in Cryostat FCAL 6/18/2021

End. Cap C … Final Integration Already cold tested in B 180. Will see at Point 1 6/18/2021

Calorimeter Readout Electronics Switched Capacitor Array SCA Controller 6/18/2021 Microelectronics development and testing at ALBERTA

Trigger, DAQ and Detector Control Trigger DAQ Calo Mu. Tr. Ch Other detectors 40 MHz 2. 5 ms LV L 1 Ro. I ~2 k. Hz ~ 200 Hz 6/18/2021 Ro. I data = 1 -2% ROIB H ROD 120 Ro. I requests ~ 10 ms LVL 2 ROB Read-Out Buffers ROB L 2 SV L ROS Lvl 2 acc = ~2 k. Hz EFP EFP ~ sec DFM EB EBN SFI D A T A F L O W Read-Out Sub-systems ~2+4 GB/s Dataflow Manager Event Building N/work Sub-Farm Input Event Builder EFN Event Filter N/work SFO Sub-Farm Output EFacc = ~0. 2 k. Hz Alberta, Mc. Gill 120 GB/s Read-Out Links GB/s L 2 N L 2 P T Event Filter Processors ROD ~4 GB/s L 2 N/work L 2 Proc Unit ROB Lvl 1 acc = 75 k. Hz Ro. I Builder L 2 Supervisor ROD D FE Pipelines E T R/O Read-Out Drivers ~ 300 MB/s

LVL 1 calo Tracker Calo Muon det. LVL 1 mu RPC TGC CSC MDT Tile LAr TRT SCT Pixel ROS ROS Compared to ATLAS • ~10% of DAQ • ~2% of HLT just counting PCs… LVL 2 farm in H 8 data network (Gb. E) LVL 1 TDAQ Setup in Combined Test Beam p. ROS monitoring run control MAGNI farm in bdg. 513 DFM ALBERTA ROS storage ROS CASTOR (IT) ROS SFI EF farm SFO ROS 6/18/2021 gateway in bdg. 513 remote farms