From: boris petkovic
Date: Thu, 10 Oct 2002 09:40:50 -0700 (PDT)
Subject: Re: [TSSP] Top Voltage
Bert wrote:
>
> Is the presence of the larger toroid "shielding" the
> sphere, reducing
> the effective E-field at its surface? This might
> explain higher than
> expected breakout voltage...
>
---
This explains higher breakout voltage most definitely.
First,I didn't know the position of Terry's small
sphere was so close to toroid top (hm,hm, seems Terry
changed something in arrangment while not informing us
..)
Second,small sphere has higher critical surface field
necessary for selfsustained air ionisation (> 30
kV/cm).
Taking in consideration all that and new software
calculation for 190 kv (Emax~42 kv/cm) looks like we
start blowing away breakout mysteries pretty well.
regards,
Boris
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