• Potential on the walls
  • Facing outer sector, from pad to the middle of the GG and Cathode : -230 V
  • Both sides, from the middle of the GG and Cathode : -115 V
  • Facing inner sector, from pad to the middle of the GG and Cathode : 0 V
• Thickness of the wall = 0.08 cm
• Initial electrons seeded 0.1 cm above the GG