Results from the run 44045

1. General Information

The overall information for this run can be found here.

2. OCDB files

The OCDB files that were used for the reconstruction of this run were produced by the SSD DA during the pedestal run with the number 44022. The plots below show the map of the bad channels:

The gain calibration file used was the proper one, but still from the LHC08b period of the machine (the AliEn OCDB was not synchronized with the DAQ logbook).

3. Analysis of clusters

Here are some histograms obtained with the official offline QA for the SSD clusters. In all plots we see the accumulated statistics from all the events of this run. There was a selection on the golden clusters.

Number of clusters per event per layer

Module number with clusters

Local coordinates x-y-z

Global coordinates x-y-z

Cluster type - Charge ratio - Cluster charge

Cluster charge (P-Side) - Cluster charge (N-Side) - qN/qP

Cluster charge map - Cluster charge correlation

4. Visualization

For the reconstruction of these data, we used v4-13-Release and the official AliEn OCDB entries.

Event 40 - xy	Event 40 - yz

5. Global QA

Below you can find the residuals for both SSD layers calculated within the Global QA. The results in the statistics' box come from a Gaussian fit which is not drawn.

Residuals: Layer 5

Residuals: Layer 6

-- PanosChristakoglou - 13 Jul 2008