"Jeff" napisal w wiadomosci
...
On 21/04/2012 08:24, Szczepan Bialek wrote:
Most of you wrote that your antennas work below the voltage necessary to
start the electron emission.

But in reality the emission take place at all voltages.

When that happens at zero or low voltages the electrons are call Beta
radiation!!

Yes.
When they escape at low voltages we call it "discharging".
Charge your antenna and measure the dicharging time.

" Attempts to understand autoelectronic emission included plotting
experimental current-voltage (i - V) data in different ways, to look for
a
straight-line relationship. Current increased with voltage more rapidly
than
linearly, but plots of type (log(i) vs. V) were not straight"

"A breakthrough came when Lauritsen[13] (and Oppenheimer
independently[14])
found that plots of type (log(i) vs. 1/V) yielded good straight lines.
This
result, published by Millikan and Lauritsen[13] in early 1928, was known
to
Fowler and Nordheim.
Oppenheimer had predicted[14] that the field-induced tunneling of
electrons
from atoms (the effect now called field ionization) would have this i(V)
dependence, had found this dependence in the published experimental field
emission results of Millikan and Eyring,[10] and proposed that CFE was
due
to field-induced tunneling of electrons from atomic-like orbitals in
surface
metal atoms. From: http://en.wikipedia.org/wiki/Field_electron_emission

Electrons escape from each charged body. Your antennas emit electrons and
for this reason they need the sink of electrons (the earth/chassis/
counterpoise).

Best Regards,

S*

Nothing in what you quoted says that electrons are produced at "all
voltages". A straight line does not infer that the line stars from zero!!
There is a threshold voltage below which no emissions take place,

Your fancy is great. Congratulation.

this voltage is the intercept on the voltage axis for the straight line
thaled about.

So the "dicharging" do not exsists?
S*