This is an old revision of the document!

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To change the layer length in the BPix you want to change the number of modules per half rod in the “Barrel PXB” section of PixelTechnicalProposal2014.cfg:

Barrel PXB {
  numLayers 4
  numModules 4   <---------------- this what you want to change
  innerRadius 29
  outerRadius 161
  width 22   <------------ this is the module length along z
  length 71 <-------------- this is the module length along x
  
  .....
  
  }