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cable_chamber

Installation and commissioning of cable chamber

Geometry

Four FEBs intsalled from external to middle:

  • TDC 5, First serie, strip 1-12
  • TDC 8, Second serie, strip 13-24,
  • TDC 6, second serie, strip 25-36
  • TDC 7, second serie, strip 37-48

Each of it is reading 12 strips both side. The mapping of the 12 strips is the following:

Strip TDC channel High Radius TDC channel Low Radius
1 10 14
2 6 11
3 2 7
4 0 3
5 4 1
6 8 5
7 12 9
8 16 13
9 18 15
10 20 17
11 22 19
12 missing (23) 21

The channel 23 is not connected to a lemo in the current version of firmware. Upgrade version of firmware with the correct connection will require a new calibration of Petirocs DAC

Pedestals

DAQ user 2018/04/02 11:03

Run 739605,606 and 607 were done to align all pedestal to VThTime @ 480

The settings for starting a run are:

# 4 FEBS aligned 491+15
daqcontrol --daq-download --dbstate=FE1_24CH_29
daqcontrol --daq-setvth --vth=506
daqcontrol --daq-configure
daqcontrol --trig-spillof --clock=10000
daqcontrol --trig-spillon --clock=100000
# 499 for TDC5 and 494 for TDC8 in DB
#daqcontrol --daq-setvth --vth=500
daqcontrol --trig-spillreg --value=4
cable_chamber.txt · Dernière modification: 2018/04/18 11:08 par DAQ user