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2017-03 Tracker summary » History » Version 8

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George, Melissa, 08 February 2018 18:12


2017-03 Tracker summary

The tracker group have looked at the reconstruction from digits to tracks for several runs from each configuration and found that the tracker reconstruction is working well. There are some unexplained features which we are looking into but the data looks good and we have seen nothing to suggest new data must be taken so far. A subset of these runs are shown below with explanations of the plots.

https://indico.cern.ch/event/691779/contributions/2839280/attachments/1581579/2499443/VC_TrackerDataQualityJan2018.pdf

Digits

After the summer warm up a significant proportions of channels in the were lost. Since there are a number of unused connections hardware changes could be made to reduce the impact of the losses. This resulted in a significant amount of work trying to minimise the spacepoint loss. This sometimes meant increasing the number of dead channels seen in the data in order to group them into certain planes. In the end 9 waveguide swaps were made 5 US and 4 DS and the spacepoint loss was reduced to ~1% and significant recalibration work was also required and successfully completed. However, the effect can be seen in the digits so this should be taken into account when looking at the following plots. What we do see however is that the digits are stable across many runs of different types which shows that the digit level data is good.

A selection of three runs for different cooling channel settings are shown below.

Run 9728 LH2 Empty 10-140+M3-Test4




Run 10420 LiH Empty 6-240+M3-Test1




Run 10567 Wedge 6-240+M3-Test1




Clusters

Run 10108 LH2 Empty 10-140+M3-Test4

Run 10420 LiH Empty 6-240+M3-Test1

Run 10567 Wedge 6-240+M3-Test1

Kuno Plot

Run 9728 LH2 Empty 10-140+M3-Test4

Run 10420 LiH Empty 6-240+M3-Test1

Spacepoints

Spacepoint Beam profiles

Run 9728 LH2 Empty 10-140+M3-Test4




Run 10420 LiH Empty 6-240+M3-Test1




Spacepoint Summary plots

Run 10108 LH2 Empty 10-140+M3-Test4


Run 10420 LiH Empty 6-240+M3-Test1



Tracks

Run 9728 LH2 Empty 10-140+M3-Test4

Run 10420 LiH Empty 6-240+M3-Test1

Run 10567 Wedge 6-240+M3-Test1

Digits_Down_1.png (27.9 KB) George, Melissa, 05 February 2018 16:03

Digits_Down_2.png (24.5 KB) George, Melissa, 05 February 2018 16:03

Digits_Up_1.png (28.4 KB) George, Melissa, 05 February 2018 16:03

Digits_Up_2.png (23.9 KB) George, Melissa, 05 February 2018 16:03

Digits_Down_1_10420.png (34.3 KB) George, Melissa, 05 February 2018 17:14

Digits_Down_2_10420.png (21.3 KB) George, Melissa, 05 February 2018 17:14

Digits_Up_1_10420.png (35.9 KB) George, Melissa, 05 February 2018 17:14

Digits_Up_2_10420.png (23.6 KB) George, Melissa, 05 February 2018 17:14

Digits_Down_2_10567.png (23 KB) George, Melissa, 05 February 2018 17:14

Digits_Down_1_10567.png (27.4 KB) George, Melissa, 05 February 2018 17:14

Digits_Up_2_10567.png (24 KB) George, Melissa, 05 February 2018 17:14

Digits_Up_1_10567.png (27.9 KB) George, Melissa, 05 February 2018 17:14

Clusters_10567.png (35.7 KB) George, Melissa, 05 February 2018 17:17

Clusters.png (40.9 KB) George, Melissa, 05 February 2018 17:18

Clusters_10420.png (40.5 KB) George, Melissa, 05 February 2018 17:18

Kuno_10420.png (14.9 KB) George, Melissa, 05 February 2018 17:20

Kuno.png (14 KB) George, Melissa, 05 February 2018 17:21

Spacepoint_Doublets_Up.png (30 KB) George, Melissa, 05 February 2018 17:28

Spacepoint_Doublets_Down.png (28.7 KB) George, Melissa, 05 February 2018 17:28

Spacepoint_tripets_Down.png (27.4 KB) George, Melissa, 05 February 2018 17:28

Spacepoint_tripets_Up.png (28.8 KB) George, Melissa, 05 February 2018 17:28

TrackCanv.png (24.3 KB) George, Melissa, 05 February 2018 17:28

Spacepoint_Doublets_Up_10420.png (28.2 KB) George, Melissa, 05 February 2018 17:30

Spacepoint_Doublets_Down_10420.png (27 KB) George, Melissa, 05 February 2018 17:30

Spacepoint_tripets_Down_10420.png (27.7 KB) George, Melissa, 05 February 2018 17:30

Spacepoint_tripets_Up_10420.png (25.4 KB) George, Melissa, 05 February 2018 17:30

Spacepoint_Types_in_Stations_10420.png (17.4 KB) George, Melissa, 05 February 2018 17:30

TrackCanv_10567.png (24.9 KB) George, Melissa, 05 February 2018 17:32

SPSummary.png (31.8 KB) George, Melissa, 05 February 2018 17:32

Spacepoint_Types_in_Stations.png (17.9 KB) George, Melissa, 05 February 2018 17:32

TrackCanv_10420.png (25.8 KB) George, Melissa, 05 February 2018 17:32

Efficiency.png (75.2 KB) George, Melissa, 08 February 2018 19:14