RunVI pedestal analysis

Figure 1 : mean pedestal per chip	Figure 2 : mean noise per chip

• X axis : Ladder Id
  • 1<-->20 : side P
  • 21<-->40 : side N
• Y axis : chip Id : 1<-->96

• P side : ladder 5, 7 where the pedestals and noise are 0 ; ladder 11 have low level of pedestals : it was mentionned by Jerome : here
  
• N Side : ladder 5, 13, 14 are noisy and the last three ladders (18,19 and 20) have a high level of occupancy (pedestals at 255 ADC)

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The next plots are for each ladder where :
• blue : side P
• red : side N
• top : pedestal
• bottom : noise

pedestal and noise : - Ladder 1
pedestal and noise : - Ladder 2
pedestal and noise : - Ladder 3
pedestal and noise : - Ladder 4
pedestal and noise : - Ladder 5
pedestal and noise : - Ladder 6
pedestal and noise : - Ladder 7
pedestal and noise : - Ladder 8
pedestal and noise : - Ladder 9
pedestal and noise : - Ladder 10
pedestal and noise : - Ladder 11
pedestal and noise : - Ladder 12
pedestal and noise : - Ladder 13
pedestal and noise : - Ladder 14
pedestal and noise : - Ladder 15
pedestal and noise : - Ladder 16
pedestal and noise : - Ladder 17
pedestal and noise : - Ladder 18
pedestal and noise : - Ladder 19
pedestal and noise : - Ladder 20

As expected, we have for this run a better noise level than at the run V (around 50 ADC) but I don't look at the others pedestal runs .
This run was the only available until now in HPSS
For the next physics run related to this pedestal run : here are the pedestals and noise values for the 10 first strips of the wafer 7812


RunVI physics run analysis

run is : st_physics_7083081_raw_1030001.daq (200 events)
Clusters Size on both sides : - Ladder 1
Clusters Size on both sides : - Ladder 2
Clusters Size on both sides : - Ladder 3
Clusters Size on both sides : - Ladder 4
Clusters Size on both sides : - Ladder 5
Clusters Size on both sides : - Ladder 6
Clusters Size on both sides : - Ladder 7
Clusters Size on both sides : - Ladder 8
Clusters Size on both sides : - Ladder 9
Clusters Size on both sides : - Ladder 10
Clusters Size on both sides : - Ladder 11
Clusters Size on both sides : - Ladder 12
Clusters Size on both sides : - Ladder 13
Clusters Size on both sides : - Ladder 14
Clusters Size on both sides : - Ladder 15
Clusters Size on both sides : - Ladder 16
Clusters Size on both sides : - Ladder 17
Clusters Size on both sides : - Ladder 18
Clusters Size on both sides : - Ladder 19
Clusters Size on both sides : - Ladder 20

Kind of package and Charge Matching : - Ladder 1
Kind of package and Charge Matching : - Ladder 2
Kind of package and Charge Matching : - Ladder 3
Kind of package and Charge Matching : - Ladder 4
Kind of package and Charge Matching : - Ladder 5
Kind of package and Charge Matching : - Ladder 6
Kind of package and Charge Matching : - Ladder 7
Kind of package and Charge Matching : - Ladder 8
Kind of package and Charge Matching : - Ladder 9
Kind of package and Charge Matching : - Ladder 10
Kind of package and Charge Matching : - Ladder 11
Kind of package and Charge Matching : - Ladder 12
Kind of package and Charge Matching : - Ladder 13
Kind of package and Charge Matching : - Ladder 14
Kind of package and Charge Matching : - Ladder 15
Kind of package and Charge Matching : - Ladder 16
Kind of package and Charge Matching : - Ladder 17
Kind of package and Charge Matching : - Ladder 18
Kind of package and Charge Matching : - Ladder 19
Kind of package and Charge Matching : - Ladder 20



New pedestal and physics runs after maintenance (June 15th)

Figure 1 : mean pedestal per chip	Figure 2 : mean noise per chip

• X axis : Ladder Id
  • 1<-->20 : side P
  • 21<-->40 : side N
• Y axis : chip Id : 1<-->96

We find almost the same situation before our long off period ,that is to said :
1. on the P side : ladder 5 and 7 where the pedestals and noise are 0 (same at the beginning of run VI)
2. on the N side : ladder 5 is still noisy
The new things are :
• for the P side :
  1. ladder 15 has low pedestals and ladders 13 and 16 are off
  2. the noise seems correct for the ladders which are on and theirs levels in agreement with the run of march. But some wafers appears very noisy compare to the others of the same ladder ( for example : ladder 9 P wafer 2 and wafer 11)
• for the N side :
  1. Ladders 18,19,20 recover good pedestal levels but 2 news ladders (6 and 16) have their pedestals at 255



Pedestal & noise for both sides

The ladders are labelled as follow :

1	2	11	12
3	4	13	14
6	5	15	16
7	8	17	18
9	10	19	20

Pedestal

Side P

Figure 3 : ladder 1 - 10 side P	Figure 4 : ladder 11 - 20 side P




Side N

Figure 5 : ladder 1 - 10 side N	Figure 6 : ladder 11 - 20 side N




Noise

Side P

Figure 7 : ladder 1 - 10 side P	Figure 8 : ladder 11 - 20 side P




Side N

Figure 9 : ladder 1 - 10 side N	Figure 10 : ladder 11 - 20 side N




Clusters size and charge matching

These next plots are just to show the behaviour of ladders which work well ,ie which have correct/expected noise and pedestal levels.

Figure 11 : size of the clusters on the P side	Figure 12 : size of the clusters on the Nside	Figure 13 : Charge matching between wafers

Per ladders

Charge Matching

Figure 14 : ladder 1 - 10	Figure 15 : ladder 11 - 20




Package

Figure 16 : ladder 1 - 10	Figure 17 : ladder 11 - 20



Jonathan Bouchet
Last modified: Sat Jun 17 17:31:44 EDT 2006