wrote in message
ups.com...
As I was typing, I heard POP, POP which I recognized as high voltage
sparks and went into the other room where my technician was working on
an electron microscope. We spent a few minutes figuring where a cable
had broken down and decided to make a teflon bushing to go around it,
fun, fun. At the same time, I am waiting for a sputter system to pump
down so I can make an entirely new type of x-ray optic. I am excited
every morning when I come to work. Can lawyers say that?


Was it multipacting that caused the arcing?

Do you use a tiecoat on the sputter target?

The lawyers are excited too. If your employee got electrocuted, they'd be
rich!

Amen!

25 yr old insulation with 25 KV going thru a sharp bend. You can
imagine the result. We just cut the cable, redid the connection and
increased the radius of the bend.

Normally we do not want adhesion to the piece being sputtereed onto.
If we did, we would use Cr to make gold stick. We want the Au (or Pd,
or Pt, etc.) to be a release layer for a subsequent electroformed layer.