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Way back in graduate school, we etched tungsten wires to a fine point to 'field emit'* electrons into liquid helium. (Several kV and ~ uA of current.)
George H.
On a sunny day (Sun, 10 Jun 2012 18:26:02 -0500) it happened "Tim Williams" wrote in :
Electron black hole.
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E5g...
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This sounds kinda cool Phil! I was searching for "Field emission" + "Nitrogen gas" (or nitrogen atmosphere, or N2) I got lots of hits, but nothing pertinent. (Lots of MOCVD studies etc.) Do you know some 'magic' keyword I might add to my search? Can you really see currents that are exponential with the voltage? A real indication of tunneling! (But high vacuum not needed!)
George H.
Oh yea. I got my touchis burned several times for putting the wrong = thing into a vacuum test chamber. A least once it wouldn't pump down due to = the monster outgassing. =20
?-)
Humph! _MY_ monsters do not fart..
ing
the
that sheet of paper we forgot about took three days just to go down to
10-6 !!! boy was that paper dry when retrieved!Have something to add? Share your thoughts — no account required.
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