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ZDC DCS Status Report

ZDC DCS Status Report. Francesca Poggio Università degli Studi di Torino INFN, sezione di Torino. ZDC detectors. ZP. ZN. two sets of calorimeters on both sides of the I.P. (side A, side C) 2 hadronic “spaghetti calorimeters” 1 for spectator neutrons ( ZN ) 1 for spectator protons ( ZP )

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ZDC DCS Status Report

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  1. ZDC DCS Status Report Francesca Poggio Università degli Studi di Torino INFN, sezione di Torino

  2. ZDC detectors ZP ZN two sets of calorimeters on both sides of the I.P. (side A, side C) • 2 hadronic “spaghetti calorimeters” • 1 for spectator neutrons (ZN) 1 for spectator protons (ZP) • placed at 116 m from the I.P. Beam pipes • a forward electromagnetic calorimeter (ZEM), placed at 7.5 m from the interaction point • all ZDC are “spaghetti calorimeters” read by means of photomultipliers

  3. ZDC 3 2 2 • the system should supply, indipendently, HV to • 36 channels: • 5 PM/ZDCg 5x4 = 20 channels • (Hamamatsu R 329) • 1 PM/ZEMg 1x2 = 2 channels • (Hamamatsu R 329) • 2 reference PMs g 2 channels • 2 PM/ZP for calibrationg 2x2 = 4 channels • 4 PM/ZN for calibrationg 4x2 = 8 channels 36 1 13/03/06 [FSM?] Database(s) PVSS II PVSS II PVSS II Control room (ACR) OPCclient DIMclient User interface Ethernet CR3 CR3 PVSS II PVSS II Control of the ZDCs position: ZDCs must be lowered during beam injection crucial importance g LHC interlock OPC client OPC client Wiener OPCserver CAEN OPCserver E PCI-CAN C CR4-X04/05 ACC VME CR4-X04/05 NIM UA23/UA27 SY1527 HV LHC Tunnel Detector High Voltage Crate Control

  4. FSM proposal: detector oriented infra side A-C side A power PLC ZDCs ZP ZEM calib HV PS [1-2] Legend hv 9 (max 9) pos CU LU 6 DU 43 HV[1-5] reference HV[1-6] HV[1-2] ZDC_DCS

  5. DCS Standard Diagram State Diagram STANDBY STBY_CONFIGURED READY READY_LOCKED GO_OFF CONFIGURE (run_mode) OFF GO_STANDBY run_mode Cosmic raysHeavy ionPpCalibration… GO_STANDBY CONFIGURE (run_mode) GO_BEAM_TUN GO_READY DOWNLOADING CONFIGURE (run_mode) CALIBRATE GO_STBY_CONF GO_READY MOVING_BEAM_TUN MOVING_STBY_CONF BEAM_TUNING DOWNLOADING CALIBRATING MOVING_BEAM_TUN MOVING_READY DOWNLOADING CALIBRATING GO_STBY_CONF GO_BEAM_TUN CALIBRATE CONFIGURE LOCK UNLOCK

  6. Beam injection vs beam tuning • all ZDCs must be lowered before the beam injection procedure starts • when the ZDCs are in “safe position”, the injection can start • all ZDCs must be placed back at the nominal position after the beam injection procedure has finished • during the beam tuning, the ZDCs signals can be useful to optimize the tuning itself for ZDCs: beam injection gSAFE State ~ STBY_CONFIGURED beam tuning g READY State

  7. CU ZDC_DCS State Diagram STANDBY STBY_CONFIGURED BEAM_INJECTION? READY GO_OFF CONFIGURE (run_mode) OFF GO_STANDBY run_mode Cosmic raysHeavy ionPpCalibration… GO_STANDBY CONFIGURE (run_mode) GO_BEAM_TUN GO_READY DOWNLOADING CONFIGURE (run_mode) CALIBRATE GO_STBY_CONF GO_READY MOVING_BEAM_TUN MOVING_STBY_CONF DOWNLOADING CALIBRATING MOVING_BEAM_TUN MOVING_READY DOWNLOADING CALIBRATING GO_STBY_CONF GO_BEAM_TUN CALIBRATE CONFIGURE

  8. FSM proposal: detector oriented Legend 9 (max 9) CU LU 6 DU ZDC_DCS infra side A-C side A power PLC ZDCs ZP ZEM calib HV PS [1-2] hv pos 43 HV[1-5] reference HV[1-6] HV[1-2]

  9. Device Unit State Diagram: position STANDBY READY • the ZDCs position is controlled with a PLC: • - main circuit breaker incl. emergency stop implemented; • - control part for the endswitches implemented.; • - LVDT with signal conditioner implemented; • - control part for closed loop control for the positioning implemented on the servo controller; • communication over profibus implemented. • (August 2006, Thorsten Gallmeister) GO_NO_CONTROL GO_READY NO_CONTROL GO_STANDBY STOP GO_READY MOVING_UP MOVING_DOWN STOP GO_STANDBY GO_STANDBY ERROR RECOVER • At present: • Thorsten Gallmeister: starting the programming of the PLC to establish the communication interface to PVSS • Francesca Poggio: defining the DPT structure + creating synoptic table with the PLC and PVSS variables

  10. Device Unit State Diagram: HV channel SWITCH_ON SWITCH_ON OFF RAMPING_UP RAMPING_DOWN SWITCH_OFF SWITCH_OFF ERROR SWITCH_ON TRIPPED SWITCH_ON ON

  11. FSM control: HV channel connection to real hardware

  12. FSM control

  13. Summary and planning installation: february 2007

  14. Grazie dell’attenzione! THANKS

  15. Backup slide!

  16. 2 SY1527, 2 boards A1833N per crate ZN to Q1,…,QC ZP to T1,…,TC check quarz fibers stability + PMs stability referenceA: check the stability of the laser laser ZN calibration: scintillator set to select cosmic rays g energy of the single photoelectron g energy calibration reference : ZP ZEM quarz fibers set

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