> [Original Message]
> From: Frederick Sparber <[EMAIL PROTECTED]>
> To: <[email protected]>
> Date: 4/14/2006 8:13:27 AM
> Subject: Re: Electrogravity & Proton Repulsion of Electrons
>
> Michel Jullian wrote.
> >
> >
> > From: "Frederick Sparber" <[EMAIL PROTECTED]>
> > Sent: Friday, April 14, 2006 1:27 PM
> >
> > > The S1 (Cs-CsO- on Ag) Photoemissive surface is the one with the
> > > photon peaks at ~ 330 and ~ 800 nanometers with a threshold of about
> 1254
> > > nm (1.0 eV IR)
> > > Cr YAG Laser?
> > >
> > > http://ssd-rd.web.cern.ch/ssd-rd/Pad_HPD/Principle/photocathodes.htm
> > >
> > > 0.1 eV electrons have a velocity v = (0.1* 2*1.6e-19/9.1e-31)^1/2 =
> > > 1.875e5 meters/sec!
> >
> > Checked/agreed. That's 10.66 µs for a 2m flight, quite a comfortable
> thing
> > to measure.
> >
> But you don't want these"volunteers". :-)
> >
> > > Electron space charge will act as a "velocity filter" that allows the
> > > higher energy electrons
> > > out,
> >
> > Agreed, thats' a good thing since we are only interested in the fastest
> > electrons: they are the only one whose initial velocity we know for
sure.
> >
> It lets the "volunteers" that you don't want to measure, wrt Repulsed
> Electrons.
> >
> > > but if there is a repulsive gravity force F(gr) = m*g = = 9.1e-31*9.8
> > > = 8.9e-30 newtons on an electron
> > > and the restraining electric field (E volts/meter)
> > > force F(e) = E*q = 1.6e-19 newtons at E = 1.0 volt/meter, there is a
> > > problem. :-)
> >
> > What, which restraining electric field, where ???
> >
> Space Charge builds up due to the Image Charge around an electron
> emitter, thus creating a restraining electric field. In Thermionic
> Converters
> it's neutralized with cesium or potassium ions.
> >
> > > Sounds like a Faraday cup approach, Michel.
> >
> > A Faraday saucer actually (not a joke this time, the positive
collecting
> > plate wouldn't be hollow)
> >
> Agreed. A one or two meter evacuated (vertical height) tube with
> some cesium at the bottom surface and a pulsed LED light source
> at the top near the Faraday Saucer collection electrode etc..
> >
> > >> Time of flight would be time between laser flash and power supply
> current
> > >> pulse wouldn't it?
> > >>
> > > Yes. But the ~ 5 microseconds/meter 0.1 eV electrons get there ahead
of
> > > the S = 0.5 * a* t^2 ~ = 3.0e-10 meters gravity repelled electrons
> > > traveled.
> >
> > Please explain.
> >
> Use the GSU "Free Fall" calculator, except down might be up.
> >
> > > OTOH. if you light pulse it and wait for the "slowpokes" ?
> >
> > No, as I said we wouldn't know their initial velocity.
> >
> It doesn't really matter, as these GSU calculators show for Free Fall
> (the same as an upward Repulsive Force) vs Vertical Trajectory for
> those electrons that get past Image Charge and Space Charge, say
> you reject any times less than 0.45 seconds the negative distance
> will be minus 0.94725 meters with a "launch speed" of 0.1 meters/sec.
>
> http://hyperphysics.phy-astr.gsu.edu/Hbase/traj.html#tra3
>
> IOW, neglect the high velocity stuff (easy to do electronically)
> and look for detection after at least 0.3 seconds delay.
>
> Fred
> > Michel
> >
> >
>
>
