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Re: Breakdown voltage at submillimeter distances?

Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>

I thought air ionization/breakdown only happened above 315v?
Mike
----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, April 09, 2006 5:42 PM
Subject: Breakdown voltage at submillimeter distances?



Original poster: Robert Clark <bobbygc2001@xxxxxxxxx>
 Actually I'm interested in the results at a few
microns. I found this after a web search:
"Under constant atmospheric conditions, it is found
that the breakdown voltage of a uniform field gap may
be expressed in the form:
 V = A*d + B*SQRT(d)   where d is the gap spacing
[i.e., in centimenters - Bob]
 For air under normal conditions:
 A = 24.4kV/cm
 B = 6.29kV/cm^1/2"
 Anyone know if this formula would apply or know a
more accurate formula at the micron scale?

   Bob Clark