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Message ID: 30     Entry time: Sun Jun 1 18:23:38 2008
Author: Markus Friedl 
Project: SiLC 
Subject: Very simple tracking 
Run Number: run2719 
Events: 100000 
Very simple alignment (manual linear x direction shifting only, no rotation, assuming equal z spacing) and tracking.
Reference plane = Module 3 (~center)
Deviation calculated from track prediction using the other layers.
Simple Center-of-gravity algorithm (as of APVDAQ_Analysis), no eta applied.
Using only events which have exactly 1 hit per plane (~80% of all events).

 Residual RMS = 4.99 um (REFERENCE against neighbor layers 2+4 only)
 Residual RMS = 6.35 um (REFERENCE against all 7 other layers) -> needs more sophisticated alignment
Attachment 1: silc_verysimple_res_2REF4.png  72 kB  Uploaded Sun Jun 1 19:33:50 2008  | Hide | Hide all
Attachment 2: silc_verysimple_res_012REF4567.png  71 kB  Uploaded Sun Jun 1 19:35:10 2008  | Hide | Hide all
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