detector daq issues

MICE CM26 March '10 Jean-Sebastien Graulich Slide 1

Detector DAQ IssuesDetector DAQ Issues

o Achievements Since CM25

o DAQ System Upgrade

o Luminosity Monitors

o Sequels of the CAMAC crate incident

o Event Building

o Schedule Milestones

o Summary

Jean-Sebastien Graulich, Geneva


Achievements since Achievements since CM24CM24

DAQ system upgrade is readyDAQ system upgrade is ready Luminosity monitors integrated Luminosity monitors integrated Trigger system cabling optimizedTrigger system cabling optimized DAQ and Trigger System ConsolidationDAQ and Trigger System Consolidation Cabling documentation in progressCabling documentation in progress Progress in EMR front-end electronicsProgress in EMR front-end electronics

DAQ System UpgradeDAQ System Upgrade

Upgrade was needed forUpgrade was needed for Standard Operating System on all Online PC

Stable Software Behaviour Controlled Installation/Replacement Procedure User Friendly

DATE Software update Better Memory management allowing larger

buffers-> Increase the number of events per spill

Delicate operationDelicate operation No service interruption allowed Need rapid back up procedure in case of

problem

Detailed documentation mandatoryDetailed documentation mandatory


DAQ System UpgradeDAQ System Upgrade

Plan of actionPlan of action Backup a disk image of the working PCs Develop the upgrade procedure on a mirror

system Develop scripts for automatic OS and Software

installation Test the DAQ on the mirror system Apply the installation procedure to the working

PCs

StatusStatus New system tested successfully Detailed installation documentation available Waiting for the next shutdown for the final

migration


DAQ System DAQ System ConsolidationConsolidation

A common Online software repository has A common Online software repository has been Set-up (James Leaver)been Set-up (James Leaver)

Using Bazaar All the DAQ software is now securely backed up and

properly versioned The online monitoring code will follow soon

A stable Installation procedure for DATE and A stable Installation procedure for DATE and DAQ code is now available and documentedDAQ code is now available and documented

Strong basis for coming developmentStrong basis for coming development Tracker DAQ !!!


MICE CM26 March '10 Jean-Sebastien Graulich

Luminosity Monitor Luminosity Monitor CountersCounters

3 LMC Signals recorded in the VME 3 LMC Signals recorded in the VME scalerscaler

1-2 Coincidence 3-4 Coincidence 1-2-3-4 coincidence

Required a reorganization of the Required a reorganization of the Trigger NIM electronicsTrigger NIM electronics

No time is recorded !No time is recorded ! Also shown on the Also shown on the

TV monitorTV monitor(new channel mapping)(new channel mapping)

Slide 6

Soler’s Signals

ECL Conversion before VME Scaler

The CAMAC Crate The CAMAC Crate IncidentIncident

The IncidentThe Incident In December 2009, after TOF2 installation, the

power supply for the CAMAC crate holding TOF Discriminator failed (over current)

The diagnostic of the failure was not simple

After unsuccessful replacement of thePower supply and the fan tray, it wasdecided to replace the full crate

=> Re-cabling of all the boards !

Slide 7MICE CM26 March '10 Jean-Sebastien Graulich

The CAMAC Crate The CAMAC Crate IncidentIncident

The ConsequenceThe Consequence Half of the ECL cables re-plugged in

reverse polarity Christmas Run cancelled

The Sequels The Sequels All boards and cables properly labeled New cables prepared to avoid single

pair connections A new CAMAC board has been

designed and produced to simplify the layout and reduce the current

Detailed layout and cabling drawing under way


New CAMAC moduleNew CAMAC module

FunctionFunction Distribute the Part. Trigger and the

Part. Trg. Request signal to all the TDCs (Synchronization reference)

WasWas A combination of

NIM Fan out NIM to ECL converter

IssueIssue Messy cabling Current consumption

Will beWill be A single CAMAC board made in UNIGE After shutdown (will modify timing ->

Calibration)



Event BuildingEvent Building

The synchronization problem between The synchronization problem between the two crates persiststhe two crates persists

We incriminate the PCI/VME interface It couldn’t be replaced because

all the spares used for the mirror DAQ system Massive failure of boards: 4 out of 10 boards had to

be send for repair

In the meanwhileIn the meanwhile Online monitoring histogram allow to spot the

problem A VME and PC power cycle solve it temporarily Shifter’s attention is required


Schedule Schedule MilestonesMilestones

From CM25From CM25 CAM data in Online Data StreamCAM data in Online Data Stream Nov 09Nov 09 -> Mai -> Mai

1010 Tracker integrated in DAQ and OLMTracker integrated in DAQ and OLM Jan 10Jan 10 -> July 10 -> July 10 TOF TDC Clock SynchronizationTOF TDC Clock Synchronization March 10March 10 -> Aug 10 -> Aug 10

More complicated than first thought. Need a dedicated board Burst Gate Signal in the Trigger SystemBurst Gate Signal in the Trigger SystemNeed support here

--------------------------------------------------------------------------

The priority has been set to the DAQ and Trigger system The priority has been set to the DAQ and Trigger system upgrade and consolidationupgrade and consolidation

DAQ System upgradeDAQ System upgrade Mai 10Mai 10 Production of SW/EMR Front End ElectronicsProduction of SW/EMR Front End Electronics Jan 10 Jan 10 -> -> StartedStarted

SummarySummary

DAQ System upgrade readyDAQ System upgrade ready Migration scheduled for the next shutdown

Luminosity monitor Counters Luminosity monitor Counters integrated into the DAQintegrated into the DAQ

Significant effort in consolidation and Significant effort in consolidation and documentationdocumentation

Next stepsNext steps Interface with CAM Tracker readout


detector daq issues

Documents

jeansebastien graulichslide

daq software

cm24daq system upgrade

daq code

working pcsstatusnew

upgrade procedure

final migrationmice

software installationtest