Results from the run 82456

1. General Information

RUN 82456 Sort
Events 13864
Detectors SPD - SDD - SSD
Duration 08:23:36

The overall information for this run can be found here.

The number of the SPD FastOR triggered events and the total number of golden clusters per layer are seen below:

FastOR Events Layer 5 Layer 6
3000 (analyzed) 1481 1359

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 82449. The plots below show the map of the bad channels:


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.

Cluster map

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. L0 timing adjustment

These are the distributions of the cluster charge grouped by DDL for this run where the timing was set to 80. To convert the moduleID to DDL I used a modified AliITSRawStreamSSD class by adding the GetDDLFromModuleId. The distributions were fitted with a Landau (black curve) and the results of each fit can be seen in the statistics box. For the cases where the fit was practically useless, we don't show it (low statistics - side half ladders).


-- PanosChristakoglou - 2009-08-31

Topic attachments
I Attachment History Action Size Date Who Comment
GIFgif Run82449-BadChannels.gif r1 manage 57.4 K 2009-08-31 - 10:33 PanosChristakoglou  
GIFgif Run82456-ClusterCharge-1.gif r1 manage 15.6 K 2009-08-31 - 10:34 PanosChristakoglou  
GIFgif Run82456-ClusterCharge-2.gif r1 manage 17.4 K 2009-08-31 - 10:34 PanosChristakoglou  
GIFgif Run82456-ClusterCharge-2D.gif r1 manage 19.7 K 2009-08-31 - 10:34 PanosChristakoglou  
GIFgif Run82456-ClusterMap.gif r1 manage 20.6 K 2009-08-31 - 10:34 PanosChristakoglou  
GIFgif Run82456-ClusterPerEvent.gif r1 manage 5.7 K 2009-08-31 - 10:38 PanosChristakoglou  
GIFgif Run82456-GlobalCoordinates.gif r1 manage 21.5 K 2009-08-31 - 10:35 PanosChristakoglou  
GIFgif Run82456-Landau.gif r1 manage 36.6 K 2009-08-31 - 10:33 PanosChristakoglou  
GIFgif Run82456-LocalCoordinates.gif r1 manage 19.2 K 2009-08-31 - 10:35 PanosChristakoglou  
GIFgif Run82456-ModuleId.gif r1 manage 11.1 K 2009-08-31 - 10:37 PanosChristakoglou  
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Topic revision: r1 - 2009-08-31 - PanosChristakoglou
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