Signal Hedgehogs

1
Signal Hedgehogs for four layer chambers
http//www.roma3.infn.it/spiriti/hedgehogs-6x4.ht
ml
4 layers 10K version delivered

• Tested successufly at
• Boston (EIL)
• Friburg
• Cern (BIS)
• Roma3

E. Spiriti, 24/04/2001
2
New (final?) version Signal Hedgehogs for BIL,BML
chambers
http//www.roma3.infn.it/spiriti/hedgehogs.html

• New mechanical shape (compatible with Faraday
  Cage?)
• Mezzanine connectors compatibility under check
  by E. Hazen
• Final HV capacitors ( Murata DE1010B471K6K)
• In principle compatible to all chambers
• 3 out of 4 compatible with Mezzanine/lite version

Schedule

• DEAD LINE -- 15 May, then PCB production
• All materials ordered for 100 boards
• HV capacitor available -- End of May
• Pin caps from Boston

E. Spiriti, 24/04/2001