Spark and dark current damage

• External views of damaged Ti window:
  • Picture 1
  • Picture 2
  • Picture 3
  • Picture 4
  • Picture 5
  • Picture 6
• Copper deposited at the
  • end
  • iris
• Microscope pictures:
  • Picture 1
  • Picture 2
  • Picture 3
• Plexiglass cover plate (dark current damage):
  • Picture 1
  • Picture 2
  • Picture 3
  • Picture 4
  • Picture 5