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LetterAllowed valuesMeaning
A1-20: TOP, 1:BOTTOM
B1-30: sensor translation, 1: sensor rotation, 2: support plate rotation
C1-3if B=0 or 1 => 1: sensor measurement ("u") direction, 2: sensor unmeasurement ("v") direction, 3: normal to sensor plane direction ("w")
if B==2 only 1 is allowed => 1:
DE01-10Sensor id.

Running Track-based Alignment

Here is an overview of the steps needed. Each step is described in more detail below.

  1. Production a Millepede input binaryRun track reconstruction and produce Millepede input binary file: e.g.mille.bin
  2. Run millepede using mille.bin creating a resulting file with correction to the constants, e.g. millepede.res
  3. Create a new compact detector description with the new corrections, e.g. compact_new.xml
    1. java -cp hps-distribution-3.0.4-SNAPSHOT-bin.jar org/hps/svt/alignment/BuildMillepedeCompact -c compact.xml millepede.res -o compact_new.xml
        
    2. Use option "-r" to replace instead of adding to existing constants in the compact.xml
  4. Create a new detector with this new compact_new.xml file.
Production a Millepede input binary
Running Millepede
Create a new compact based on Millepede corrections
Create a new detector based on a new compact.xml file