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ECAL Detector Control System : Status Report. G. Dissertori ETHZ 17.10.2002. ECAL Electronics, DCS. Outline News The M0’ experience Current activities Plans/Next Conclusions. ECAL Electronics, DCS. News. Specification document finally released (today) - PowerPoint PPT Presentation
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G. Dissertori ETHZ CMS Electronics 2002 1
ECAL Detector Control System : Status Report
G. Dissertori
ETHZ
17.10.2002
G. Dissertori ETHZ CMS Electronics 2002 2
ECAL Electronics, DCS
Outline
• News • The M0’ experience• Current activities• Plans/Next• Conclusions
G. Dissertori ETHZ CMS Electronics 2002 3
ECAL Electronics, DCS
• Specification document finally released (today) • collected comments from P. Bloch and from the members of the DCS group
• circulate now inside the collaboration
• Deputy project leader• would like to propose Serguei Zelepoukine from IHEP Protvino as Deputy Project
Leader
News
G. Dissertori ETHZ CMS Electronics 2002 4
ECAL Electronics, DCS
• Excellent work done by S. Zelepoukine and the Belgrade group
• Precision Temperature Monitoring• we can achieve the precision required
• The ATLAS ELMB is a viable backup solution for the readout system if placed not too close to the detector
• Safety system• A safety system with interlocks to the HV/LV has been built and operated
• discovered large sensitivity of the PLC to the environmental noise --> to be propagated to JCOP/ITCO
• PVSS on Windows: not yet as stable as we would like...
• no interface yet to the DAQ
The M0’ experience
G. Dissertori ETHZ CMS Electronics 2002 5
ECAL Electronics, DCS
• Sensor issues• Humidity sensors :
• together with Tracker DCS group a large number of possible sensor types is currently evaluated, tested, irradiated etc.
• Specifications (chosen sensor) hopefully by end of the year.
• Pressure/flow meters : • together with Tracker DCS group and Frank Glege we are elaborating a little requirements
document in order to start a discussion/collaboration with the cooling people.
• We would like that they choose and install the sensors, and that we take care of the read out and safety actions.
Current activities
G. Dissertori ETHZ CMS Electronics 2002 6
ECAL Electronics, DCS
• RBFE board
• Two technicians from Protvino together with the LHC-ACR group
• study and test of the RBFE (Resistance Bridge Front End) board
• for sensor excitation and signal conditioning before sending over long signal cable
• want to combine this with a MUX --> investigations of MUX candidates (issue : radiation hardness)
Current activities...
G. Dissertori ETHZ CMS Electronics 2002 7
ECAL Electronics, DCS
• Lab test of Keithley readout system
• Student from ETH together with W. Lustermann and S. Zelepoukine
Current activities...
• study of cascaded MUXing system
• analysis of switching time limits ---> current limit coming from the RBFE board
• analysis of signal precision over long cable (120m)
• test will be carried on by a further ETH PhD student
G. Dissertori ETHZ CMS Electronics 2002 8
ECAL Electronics, DCS
• Software• ETH student (Alison Lister) has started to work on software framework, as
well on first PVSS set-up for the temperature monitoring
• will also look into the communication with XDAQ and databases
• Cabling• Serguei has started to discuss with the CMS Integration group about the
cabling layout for DCS :
Current activities....
G. Dissertori ETHZ CMS Electronics 2002 9
ECAL Electronics, DCS
ECAL DCScabling andfront-end electronicslayout
Counting roomCMS
Barrel
Endcap
Barrel
Electronics
G. Dissertori ETHZ CMS Electronics 2002 10
ECAL Electronics, DCS
TMUX Keithleyx 10 x 45PC
45
TMUX Keithleyx 45
PC45
TMUX
50 m
45CANELMB
100 m
PC1
1
4
Detector Balcony Counting room
TMUX Keithleyx 10 x 45
PC45
28
3
CANELMB6 x 10
PC
G. Dissertori ETHZ CMS Electronics 2002 11
ECAL Electronics, DCS
• Irradiation tests • plan to go with a small group to PSI (end of Nov) in order to do irradation
tests of the RBFE board components
• SM0 integration test• we start ordering items
• bring some of the M0’ setups back to B27 to be used there for those tests
Plans/Next
G. Dissertori ETHZ CMS Electronics 2002 12
ECAL Electronics, DCS
• Overall good momentum• My worries
• will be difficult to keep this momentum over the winter months, since the main actors will not be at CERN or be overloaded with other duties
• have to well define the activities which can be carried out in the home labs
• DCS for Preshower : need urgently resources
• A question• has anybody in CMS in general thought about the issue of Galvanic
isolation (detector - counting house) for the DCS system??
Conclusions