Run13 detprob

From RHIC Spin Group

Run 13 detector instabilities

  • Summary of observations: Ibias and gain variations, gain vs. Vbias; slide 2 changes in 2013 pdf
  • Bench measurements (Wei Chen and Rolf Beuttenmuller): pdf
  • Bias supply pdf (diagram, relation between Ibias, Vbias and gain)

Diagrams and pictures

  • Ceramic board used in Run 13 (1mm detector) pdf (Actual board slightly smaller but electrically identical, except filter capacitor not installed)
  • Comparison old (2mm detector) and new (1mm detector) ceramic boards pdf
  • Front end electronics pdf (Input from Si strips left side pages 1-4, bias supply top right page 5)