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Physik an Hadronen- Beschleunigern

FSM. Front-end electronics. The ATLAS MDT Control System. SUSY-Suchen mit b-Jets. Graduiertenkolleg. G. Bobbink, H. Boterenbrood, R. Hart , NIKHEF, Amsterdam, Netherlands S. Zimmermann, Physics Institute, Freiburg University, Germany. Stefan Winkelmann (Abteilung Jakobs).

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Physik an Hadronen- Beschleunigern

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  1. FSM Front-end electronics The ATLAS MDT Control System SUSY-Suchen mit b-Jets Graduiertenkolleg G. Bobbink, H. Boterenbrood, R. Hart, NIKHEF, Amsterdam, Netherlands S. Zimmermann, Physics Institute, Freiburg University, Germany Stefan Winkelmann (Abteilung Jakobs) Physik an Hadronen- Beschleunigern ICALEPCS 2009, Kobe, Japan Magnetic-Field MDT Sub-Detector • B-sensors: 1773 • Precision 10-4 • Max. field 1.4 [Tesla] • Calibrated • Unique ID • stability < 0.5 Gauss • Hall-sensor(x,y,z) + T • Monitored Drift Tubes • 1200Chambers (various shapes/sizes) • Barrel & Endcap: 3 layers (Inner, Middle, Outer) • number of tubes: ± 400,000 BOL–chamber under construction MDT-chamber: Read-out (RO) side Mezzanines: physics readout CSM (Chamber Service Module) JTAG expert panel CSM-ADC DCS – CAN-bus based CSM • Max. 18 Mezzanines/chamber • Monitoring: V & T • MDT: 14,236 Mezzanines • MDM (MDT-DCS-Module) • Based on ELMB • CAN field-bus • 64 channel 16bit ADC • 24 digital I/O • Sub-systems covered: • T: Temperature • B: Magnetic-field • FE: Front-end electronics: • CSM-ADC (V,T) • JTAG PVSS Datapoint structure Not covered: LV, HV, gas, alignment • PVSS-Project / PC • 12 CAN-buses • ± 150 MDT chambers • ± 100,000 datapoint elements • ± 4,000 _address configs OPC Hardware Configuration MDT-Chamber JTAG Magnetic-field CSM-ADC Temperature Node • 8 PCs + 1 super-visor + 1 spare • 96 CANbuses (90 in use) • 6 power crates * 16 PSUs General State/Status display & Browser USA15 Temperature T-sensors: 12,236 Example: JTAG endcap side-A Temperature Overview • FSM-concepts: • Setup/Maintain MDT ready for physics • Tree structure: commands ↓ , states ↑ • Abstract model: summary information Daily report References [1] ELMB Documentation; https://twiki.cern.ch/twiki/bin/view/Atlas/DcsElmb [2] H.Boterenbrood, “MDT-DCS CANopen Module”; http:/www.nikhef.nl/pub/departments/ct/po/html/MDT/MDT-DCS-CANnode.pdf

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