The LED-based monitoring systems for calorimeters

Ecal LED/PIN-Diode system

EcalLED_Distribution.jpg

The global sketch of the Ecal LED distribution can be found here for the C-side and here for the A-side of Ecal. Note that two groups of LEDs have actually been cabled in a different manner than in the description provided by the previous links. The additional information about these two modifications can be found here and there, respectively.

The PIN -> LED -> EcalCells relations are summarized in the table below.
Each line of the table corresponds to a single PIN-diode (with 2 exceptions as explained below). Each PIN-diode is labelled with its PIN-ID, the box number, the connector index and the Ecal side (0=C-side, 1=A-side).
The readout of the PIN-diodes is described with the crate number,the FEB-slot,the adc-channel and the readout order .
The corresponding group of Ecal PMT channels is identified with the corresponding Ecal area (0=outer,1=middle,2=inner), first/last-row and first/last column.

For most of the PIN-diodes, the matching Ecal cells form a single rectangular NxM block. The group of corresponding LEDs is indicated with cLed and rLed which have to be understood as a (cLedxrLed) LED array, each LED of the group flashing a squared sub-block of the whole NxM block.
In most of the case th Ecal PIN-diodes are connected to a groups of 2x2 or 2x1 LEDs.

As usual there is exceptions to the generic description. Two groups of 4-LEDs have been cabled differently. The corresponding PIN-diodes match non-rectangular groups of cells with a 1x1 + 1x3 LED distribution as shown in the links above. Each of these two special LED distributions are described with two lines in the table below (PIN 3.02 and 3.06)

This table is used as a condition in the LHCb condDB (path = /Conditions/Ecal/ReadoutConf/).

PIN box index Ecal crate FEB adc readout cLed rLed cell block
id side slot channel order area fcol frow lcol lrow
1.04 1 1 0 11 0 0 0 2 2 0 0 50 7 57
1.03 2 1 0 11 0 1 8 2 2 0 8 50 15 57
2.03 3 1 0 11 0 2 16 2 2 1 8 44 15 51
3.15 4 1 0 11 0 3 24 2 2 2 26 20 31 25
2.05 3 2 0 11 0 4 01 2 2 1 8 36 15 43
2.07 3 3 0 11 0 5 09 2 2 1 8 28 15 35
2.11 4 2 0 11 0 6 17 2 2 1 24 12 31 19
3.16 4 3 0 11 0 7 25 2 2 2 20 20 25 25
1.09 1 2 0 11 0 8 02 2 2 0 0 42 7 49
1.13 1 3 0 11 0 9 10 2 2 0 0 34 7 41
1.08 2 2 0 11 0 10 18 2 2 0 8 42 15 49
1.12 2 3 0 11 0 11 26 2 2 0 8 34 15 41
1.15 1 4 0 11 0 12 03 2 1 0 0 30 7 33
1.17 1 5 0 11 0 13 11 2 2 0 0 22 7 29
1.14 2 4 0 11 0 14 19 2 1 0 8 30 15 33
1.16 2 5 0 11 0 15 25 2 2 0 8 22 15 29
1.21 1 6 0 11 0 16 04 2 2 0 0 14 7 21
1.20 2 6 0 11 0 17 12 2 2 0 8 14 15 21
2.08 3 14 0 11 0 18 20 2 2 1 0 28 7 35
2.10 3 15 0 11 0 19 28 2 2 1 0 20 7 27
1.27 1 7 0 11 0 20 05 2 2 0 0 6 7 13
1.26 2 7 0 11 0 21 13 2 2 0 8 6 15 13
2.14 3 16 0 11 0 22 21 2 2 1 0 12 7 19
1.02 3 6 0 11 0 24 06 2 2 0 16 50 23 57
2.04 3 7 0 11 0 25 14 2 2 1 0 44 7 51
2.06 3 8 0 11 0 26 22 2 2 1 0 36 7 43
2.09 3 9 0 11 0 27 30 2 2 1 8 20 15 27
2.13 3 10 0 11 0 28 07 2 2 1 8 12 15 19
1.25 3 11 0 11 0 29 15 2 2 0 16 6 23 13
1.19 3 12 0 11 0 30 23 2 1 0 16 18 23 21
1.23 3 13 0 11 0 31 31 2 1 0 16 14 23 17
1.11 3 4 0 11 1 0 0 2 1 0 16 42 23 45
1.07 3 5 0 11 1 1 8 2 1 0 16 46 23 49
3.12 4 4 0 11 1 2 16 2 2 2 20 26 23 31
1.18 4 5 0 11 1 3 24 2 1 0 24 18 31 21
2.12 4 6 0 11 1 4 01 2 2 1 16 12 23 19
3.13 4 7 0 11 1 5 09 2 2 2 14 26 19 31
3.14 4 8 0 11 1 6 17 2 2 2 8 26 13 31
3.19 4 9 0 11 1 7 25 2 2 2 26 14 31 19
3.20 4 10 0 11 1 8 02 2 2 2 20 14 25 19
3.17 4 11 0 11 1 9 10 2 2 2 14 20 19 25
1.22 4 12 0 11 1 10 18 2 1 0 24 14 31 17
1.24 4 13 0 11 1 11 25 2 2 0 24 6 31 13
3.21 4 14 0 11 1 12 03 2 2 2 14 14 19 19
3.18 4 15 0 11 1 13 11 2 2 2 8 20 13 25
3.22 4 16 0 11 1 14 19 2 2 2 8 14 13 19
3.01 5 1 0 11 1 16 04 2 2 2 26 44 31 49
3.02 5 2 0 11 1 17 12 2 2 1 20 47 25 49
3.02 5 2 0 11 1 17 12 2 1 2 23 41 25 46
3.07 5 3 0 11 1 18 20 2 2 2 14 38 19 43
1.05 5 5 0 11 1 19 28 2 2 0 24 50 31 57
1.06 5 4 0 11 1 20 05 2 1 0 24 46 31 49
3.03 5 6 0 11 1 21 13 2 2 2 14 44 19 49
3.08 5 7 0 11 1 22 21 2 2 2 8 38 13 43
3.04 5 8 0 11 1 23 29 2 2 2 8 44 13 49
3.05 5 9 0 11 1 24 06 2 2 2 26 38 31 43
3.06 5 11 0 11 1 25 14 2 1 1 20 38 25 40
3.06 5 11 0 11 1 25 14 1 2 1 20 41 22 46
3.09 5 12 0 11 1 26 22 2 2 2 20 32 23 37
1.10 5 13 0 11 1 27 30 2 1 0 24 42 31 45
2.01 5 10 0 11 1 28 07 2 2 1 24 44 31 51
2.02 5 14 0 11 1 29 15 2 2 1 16 44 23 51
3.10 5 15 0 11 1 30 23 2 2 2 14 32 19 37
3.11 5 16 0 11 1 31 31 2 2 2 8 32 13 37
3.04 6 1 1 17 14 0 0 2 2 2 50 44 55 49
3.08 6 2 1 17 14 1 8 2 2 2 50 38 55 43
3.03 6 3 1 17 14 2 16 2 2 2 44 44 49 49
1.06 6 5 1 17 14 3 24 2 1 0 32 46 39 49
1.05 6 4 1 17 14 4 01 2 2 0 32 50 39 57
3.07 6 6 1 17 14 5 09 2 2 2 44 38 49 43
3.02 6 7 1 17 14 6 17 2 2 2 38 44 43 49
3.01 6 8 1 17 14 7 25 2 2 2 32 44 37 49
3.11 6 9 1 17 14 8 02 2 2 2 50 32 55 37
2.02 6 11 1 17 14 9 10 2 2 1 40 44 47 51
1.10 6 12 1 17 14 10 18 2 1 0 32 42 39 45
3.09 6 13 1 17 14 11 26 2 2 2 40 32 43 37
3.10 6 10 1 17 14 12 03 2 2 2 44 32 49 37
3.06 6 14 1 17 14 13 11 2 2 2 38 38 43 43
2.01 6 15 1 17 14 14 19 2 2 1 32 44 39 51
3.05 6 16 1 17 14 15 27 2 2 2 32 38 37 43
1.07 8 4 1 17 14 16 04 2 1 0 40 46 47 49
1.11 8 5 1 17 14 17 12 2 1 0 40 42 47 45
1.18 7 4 1 17 14 18 20 2 1 0 32 18 39 21
2.12 7 5 1 17 14 19 28 2 2 1 40 12 47 19
3.16 7 6 1 17 14 20 05 2 2 2 38 20 43 25
2.11 7 7 1 17 14 21 13 2 2 1 32 12 39 19
3.15 7 8 1 17 14 22 21 2 2 2 32 20 37 25
3.22 7 9 1 17 14 23 29 2 2 2 50 14 55 19
3.18 7 10 1 17 14 24 06 2 2 2 50 20 55 25
3.21 7 11 1 17 14 25 14 2 2 2 44 14 49 19
1.28 7 12 1 17 14 26 22 2 2 0 32 6 39 13
1.22 7 13 1 17 14 27 30 2 1 0 32 14 39 17
3.17 7 14 1 17 14 28 07 2 2 2 44 20 49 25
3.20 7 15 1 17 14 29 15 2 2 2 38 14 43 19
3.19 7 16 1 17 14 30 23 2 2 2 32 14 37 19
1.27 10 1 1 17 15 0 00 2 2 0 56 6 63 13
1.26 9 1 1 17 15 1 08 2 2 0 48 6 55 13
2.06 8 1 1 17 15 2 16 2 2 1 56 36 63 43
3.14 7 1 1 17 15 3 24 2 2 2 50 26 55 31
2.04 8 2 1 17 15 4 01 2 2 1 56 44 63 51
3.13 7 2 1 17 15 5 09 2 2 2 44 26 49 31
1.02 8 3 1 17 15 6 17 2 2 0 40 50 47 57
3.12 7 3 1 17 15 7 25 2 2 2 40 26 43 31
1.21 10 2 1 17 15 8 02 2 2 0 56 14 63 21
1.20 9 2 1 17 15 9 10 2 2 0 48 14 55 21
1.17 10 3 1 17 15 10 18 2 2 0 56 22 63 29
1.16 9 3 1 17 15 11 25 2 2 0 48 22 55 29
1.15 10 4 1 17 15 12 03 2 1 0 56 30 63 33
1.14 9 4 1 17 15 13 11 2 1 0 48 30 55 33
1.13 10 5 1 17 15 14 19 2 2 0 56 34 63 41
1.12 9 5 1 17 15 15 27 2 2 0 48 34 55 41
1.09 10 6 1 17 15 16 04 2 2 0 56 42 63 49
1.08 9 6 1 17 15 17 12 2 2 0 48 42 55 49
1.25 8 14 1 17 15 18 20 2 2 0 40 6 47 13
2.13 8 15 1 17 15 19 28 2 2 1 48 12 55 19
1.04 10 7 1 17 15 20 05 2 2 0 56 50 63 57
1.03 9 7 1 17 15 21 13 2 2 0 48 50 55 57
2.09 8 16 1 17 15 22 21 2 2 1 48 20 55 27
2.07 8 6 1 17 15 24 06 2 2 1 48 28 55 35
2.05 8 7 1 17 15 25 14 2 2 1 48 36 55 43
2.03 8 8 1 17 15 26 22 2 2 1 48 44 55 51
2.14 8 9 1 17 15 27 30 2 2 1 56 12 63 19
2.10 8 10 1 17 15 28 07 2 2 1 56 20 63 27
2.08 8 11 1 17 15 29 15 2 2 1 56 28 63 35
1.23 8 12 1 17 15 30 23 2 1 0 40 14 47 17
1.19 8 13 1 17 15 31 31 2 1 0 40 18 47 21

Hcal LED/PIN-Diode system

HcalLED_Distribution.jpg

The Hcal LED/PIN-diodes distribution is different than Ecal :

  • each PIN-diode read-out a single LED (2 or 4 for Ecal)
  • each HCal PMT channel can be flashed by two different LEDs (a single one for Ecal)
  • a single LED flashes a whole Hcal module, some of them merging inner and outer channels.

The PIN -> LED -> HcalCells relations are summarized in the table below.
Each line of the table corresponds to a PIN-diode labelled with the Hcal module, the LED-index (0 or 1) and the Hcal side (0=C-side, 1=A-side).
The readout of the PIN-diodes is described with the crate number,the FEB-slot, the adc-channel and the readout order.
The corresponding group(s) of Hcal PMT channels is identified with the Hcal area(s) (0=outer, 1=inner), first/last-row(s) and first/last column(s).

This table is used as a condition in the LHCb condDB (path = /Conditions/Hcal/ReadoutConf/).

module LED Hcal crate FEB adc readout cell block (1st region) cell block (2nd region)
index side slot channel order area fcol frow lcol lrow area fcol frow lcol lrow
03 0 0 22 13 00 00 0 0 3 15 3
04 0 0 22 13 01 08 0 0 4 15 4
05 0 0 22 13 02 16 0 0 5 15 5
06 0 0 22 13 03 24 0 0 6 15 6
07 0 0 22 13 04 01 0 0 7 15 7
08 0 0 22 13 05 09 0 0 8 15 8
09 0 0 22 13 06 17 0 0 9 7 9 1 0 2 15 3
10 0 0 22 13 07 25 0 0 10 7 10 1 0 4 15 5
11 0 0 22 13 08 02 0 0 11 7 11 1 0 6 15 7
12 0 0 22 13 09 10 0 0 12 7 12 1 0 8 15 9
13 0 0 22 13 10 18 0 0 13 7 13 1 0 10 15 11
14 0 0 22 13 11 26 0 0 14 7 14 1 0 12 15 13
15 0 0 22 13 12 03 0 0 15 7 15 1 0 14 13 15
16 0 0 22 13 13 11 0 0 16 7 16 1 0 16 13 17
17 0 0 22 13 14 19 0 0 17 7 17 1 0 18 15 19
18 0 0 22 13 15 27 0 0 18 7 18 1 0 20 15 21
19 0 0 22 13 16 04 0 0 19 7 19 1 0 22 15 23
20 0 0 22 13 17 12 0 0 20 7 20 1 0 24 15 25
21 0 0 22 13 18 20 0 0 21 7 21 1 0 26 15 27
22 0 0 22 13 19 28 0 0 22 7 22 1 0 28 15 29
23 0 0 22 13 20 05 0 0 23 15 23
24 0 0 22 13 21 13 0 0 24 15 24
25 0 0 22 13 22 21 0 0 25 15 25
26 0 0 22 13 23 29 0 0 26 15 26
27 0 0 22 13 24 06 0 0 27 15 27
28 0 0 22 13 25 14 0 0 28 15 28
03 0 1 25 13 00 00 0 16 3 31 3
04 0 1 25 13 01 08 0 16 4 31 4
05 0 1 25 13 02 16 0 16 5 31 5
06 0 1 25 13 03 24 0 16 6 31 6
07 0 1 25 13 04 01 0 16 7 31 7
08 0 1 25 13 05 09 0 16 8 31 8
09 0 1 25 13 06 17 0 16 9 31 9 1 16 2 31 3
10 0 1 25 13 07 25 0 24 10 31 10 1 16 4 31 5
11 0 1 25 13 08 02 0 24 11 31 11 1 16 6 31 7
12 0 1 25 13 09 10 0 24 12 31 12 1 16 8 31 9
13 0 1 25 13 10 18 0 24 13 31 13 1 16 10 31 11
14 0 1 25 13 11 26 0 24 14 31 14 1 16 12 31 13
15 0 1 25 13 12 03 0 24 15 31 15 1 18 14 31 15
16 0 1 25 13 13 11 0 24 16 31 16 1 18 16 31 17
17 0 1 25 13 14 19 0 24 17 31 17 1 16 18 31 19
18 0 1 25 13 15 27 0 24 18 31 18 1 16 20 31 21
19 0 1 25 13 16 04 0 24 19 31 19 1 16 22 31 23
20 0 1 25 13 17 12 0 24 20 31 20 1 16 24 31 25
21 0 1 25 13 18 20 0 24 21 31 21 1 16 26 31 27
22 0 1 25 13 19 28 0 24 22 31 22 1 16 28 31 29
23 0 1 25 13 20 05 0 16 23 31 23
24 0 1 25 13 21 13 0 16 24 31 24
25 0 1 25 13 22 21 0 16 25 31 25
26 0 1 25 13 23 29 0 16 26 31 26
27 0 1 25 13 24 06 0 16 27 31 27
28 0 1 25 13 25 14 0 16 28 31 28
03 1 0 22 15 00 00 0 0 3 15 3
04 1 0 22 15 01 08 0 0 4 15 4
05 1 0 22 15 02 16 0 0 5 15 5
06 1 0 22 15 03 24 0 0 6 15 6
07 1 0 22 15 04 01 0 0 7 15 7
08 1 0 22 15 05 09 0 0 8 15 8
09 1 0 22 15 06 17 0 0 9 7 9 1 0 2 15 3
10 1 0 22 15 07 25 0 0 10 7 10 1 0 4 15 5
11 1 0 22 15 08 02 0 0 11 7 11 1 0 6 15 7
12 1 0 22 15 09 10 0 0 12 7 12 1 0 8 15 9
13 1 0 22 15 10 18 0 0 13 7 13 1 0 10 15 11
14 1 0 22 15 11 26 0 0 14 7 14 1 0 12 15 13
15 1 0 22 15 12 03 0 0 15 7 15 1 0 14 13 15
16 1 0 22 15 13 11 0 0 16 7 16 1 0 16 13 17
17 1 0 22 15 14 19 0 0 17 7 17 1 0 18 15 19
18 1 0 22 15 15 27 0 0 18 7 18 1 0 20 15 21
19 1 0 22 15 16 04 0 0 19 7 19 1 0 22 15 23
20 1 0 22 15 17 12 0 0 20 7 20 1 0 24 15 25
21 1 0 22 15 18 20 0 0 21 7 21 1 0 26 15 27
22 1 0 22 15 19 28 0 0 22 7 22 1 0 28 15 29
23 1 0 22 15 20 05 0 0 23 15 23
24 1 0 22 15 21 13 0 0 24 15 24
25 1 0 22 15 22 21 0 0 25 15 25
26 1 0 22 15 23 29 0 0 26 15 26
27 1 0 22 15 24 06 0 0 27 15 27
28 1 0 22 15 25 14 0 0 28 15 28
03 1 1 25 14 00 00 0 16 3 31 3
04 1 1 25 14 01 08 0 16 4 31 4
05 1 1 25 14 02 16 0 16 5 31 5
06 1 1 25 14 03 24 0 16 6 31 6
07 1 1 25 14 04 01 0 16 7 31 7
08 1 1 25 14 05 09 0 16 8 31 8
09 1 1 25 14 06 17 0 16 9 31 9 1 16 2 31 3
10 1 1 25 14 07 25 0 24 10 31 10 1 16 4 31 5
11 1 1 25 14 08 02 0 24 11 31 11 1 16 6 31 7
12 1 1 25 14 09 10 0 24 12 31 12 1 16 8 31 9
13 1 1 25 14 10 18 0 24 13 31 13 1 16 10 31 11
14 1 1 25 14 11 26 0 24 14 31 14 1 16 12 31 13
15 1 1 25 14 12 03 0 24 15 31 15 1 18 14 31 15
16 1 1 25 14 13 11 0 24 16 31 16 1 18 16 31 17
17 1 1 25 14 14 19 0 24 17 31 17 1 16 18 31 19
18 1 1 25 14 15 27 0 24 18 31 18 1 16 20 31 21
19 1 1 25 14 16 04 0 24 19 31 19 1 16 22 31 23
20 1 1 25 14 17 12 0 24 20 31 20 1 16 24 31 25
21 1 1 25 14 18 20 0 24 21 31 21 1 16 26 31 27
22 1 1 25 14 19 28 0 24 22 31 22 1 16 28 31 29
23 1 1 25 14 20 05 0 16 23 31 23
24 1 1 25 14 21 13 0 16 24 31 24
25 1 1 25 14 22 21 0 16 25 31 25
26 1 1 25 14 23 29 0 16 26 31 26
27 1 1 25 14 24 06 0 16 27 31 27
28 1 1 25 14 25 14 0 16 28 31 28

Prs/Spd LED system

The Prs/Spd monitoring system is much simpler :
  • each PMT channel is flashed with a single LED.
  • each LED flashes a group of 128 PMT channels.
  • there is no PIN-diode monitoring the LED.

As there is no PIN-diode readout channel there is no specific description for the Prs/Spd monitoring system in the LHCb condDB.

PIN-diode software readout

The PIN-diode readout scheme is implemented in the LHCB condition DataBase.
The condDB is accessed and parsed in the DetectorElement (DeCalorimeter). The software PIN-diode readout has then the same structure as PMT-channels. In particular a 'virtual' CaloCellID (with area=3) is defined for each PIN-diode as explained in the readout page.

-- OlivierDeschamps - 07 Nov 2007

Topic attachments
I AttachmentSorted ascending History Action Size Date Who Comment
JPEGjpg ecal_leds_l.jpg r1 manage 329.4 K 2007-11-08 - 00:03 OlivierDeschamps  
JPEGjpg ecal_leds_r.jpg r1 manage 458.3 K 2007-11-08 - 00:06 OlivierDeschamps  
JPEGjpg EcalLED_Distribution.jpg r1 manage 105.0 K 2007-11-07 - 23:51 OlivierDeschamps  
JPEGjpg group3.02.JPG r1 manage 115.2 K 2007-11-08 - 00:10 OlivierDeschamps  
JPEGjpg group3.06.JPG r1 manage 98.8 K 2007-11-08 - 00:10 OlivierDeschamps  
JPEGjpg HcalLED_Distribution.jpg r1 manage 104.9 K 2007-12-11 - 20:46 OlivierDeschamps  

This topic: LHCb > LHCbCalo > LHCbCaloLEDMonitoring
Topic revision: r4 - 2008-02-04 - OlivierDeschamps
 
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