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XCAL LED – HV control Status
News
LV control.
• The OPC server on PC cadcs01w has been upgraded to latest version
(v.3.0.679.0 ) and tested for all Wiener power supplies.
• DEFAULT recipes have been created for all DCS calorimeter projects. Now it
allows to control power supplies with different as PHYSICS recipe names.
• Wiener low voltage power supply active monitoring was implemented for CALO
supplies (see next slide).
HV control.
• Additional panel for HV channels masking has been developed. This job was
pushed by a work during the TED run.
TED run.
• HV values and FE delay settings distributions prepared for TED run.
Planning
1
CALO meeting 22.06.2009
Anatoli Konoplyannikov [ITEP / LAPP]
Status of LV power supply control
We have strong recommendation from Eric Thomas (GLIMOS - Exp LHCb) to
implement an active monitoring of the calorimeter low voltage power supplies.
For calorimeter sub-detectors a Wiener low voltage power supply active
monitoring was implemented few weeks ago after upgrading the Wiener
OPC server (project CADCSLV). There are two levels of ECS alert:
1. WARNING alert produces message to Alert Screen when a power supply
current more than 10 % of nominal value.
2. ERROR alert produces message to Alert Screen, changes FSM state to
ERROR state and switches off an over current channel, when a power
supply current more than 30 % of nominal value.
For the correct settings of the alarm levels the nominal voltages and currents
of the LV power supplies were measured when HV was set with COSMICS
recipe.
2
CALO meeting 22.06.2009
Anatoli Konoplyannikov [ITEP / LAPP]
ECAL/HCAL HV channel masking Panel
For improving the calorimeter
hot channels masking on the
level of HV system the
dedicated panel has been
developed.
There are five different
addresses describing an
individual detector cell:
1. Official detector naming
area=O,M,I; X=0 – 64; Y=0 – 64;
2. Cell X, Y coordinate in mm;
3. Cell DAQ encoding
detID<<14+area<<12+Y<<6+X;
4. FE channel address
10000*crate+100*slot+ ch;
5. HV board address 1000*
board+channel;
Not implemented yet
ECAL one side HV top level panel.
CALO meeting 22.06.2009
Anatoli Konoplyannikov [ITEP / LAPP]
3
ECAL HV and FE delay distributions used in TED run
Middle
Outer
Inner
Gain for regions:
Maximum delay
spread < 5 ns
Inner – 20 k;
Middle – 10 k;
Outer – 2,5 k;
4
CALO meeting 22.06.2009
Anatoli Konoplyannikov [ITEP / LAPP]
HCAL HV and FE delay distributions used in TED run
Outer
Inner
Gain for regions:
Maximum delay
spread < 4 ns
Inner – 20 k;
Outer – 5 k;
5
CALO meeting 22.06.2009
Anatoli Konoplyannikov [ITEP / LAPP]
XCAL LED – HV control Status
Planning
Finalize the channel masking panel development.
6
CALO meeting 22.06.2009
Anatoli Konoplyannikov [ITEP / LAPP]