Re: Vacuum Gap

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Gregory Hunter by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ghunter31014-at-yahoo-dot-com>

Hi Ted,

A vacuum tube can serve as an x-ray source. Certain
types of old radio receiving tubes were especially
efficient in this respect. I once saw a diagram of an
amateur x-ray machine based on an old receiving tube
stimulated with a model "T" spark coil. I also saw a
similar setup in an old "Scientific American"
hardbound book using a small Oudin coil for power.

Regards,

Greg

--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "BunnyKiller by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <bigfoo39-at-telocity-dot-com>
> 
> Tesla list wrote:
> 
> > Original poster: "Ted Rosenberg by way of Terry
> Fritz
> <twftesla-at-qwest-dot-net>" <Ted.Rosenberg-at-radioshack-dot-com>
> >
> > Based on my limited use of x-rays, you have to
> have 1. a source of electrons
> > 2. a high vacuum and 3. a target for the
> electronic to hit and discharge
> > x-rays.
> >
> > I don't think that just HV in a vacuum by itself
> will generate x-rays.
> > Of course, I'm open to correction. I don't glow.
> Yet.
> >
> > Safety First
> >
> > Ted
> > G-2, #1029
> >
> > -----Original Message-----
> > From: Tesla list [mailto:tesla-at-pupman-dot-com]
> > Sent: Friday, August 17, 2001 12:42 PM
> > To: tesla-at-pupman-dot-com
> > Subject: Re: Vacuum Gap
> >
> > Original poster: "by way of Terry Fritz
> <twftesla-at-qwest-dot-net>"
> > <PsychoticMinds1-at-aol-dot-com>
> >
> >       Im not sure but when u run high voltages
> threw a vacum dont you run
> > the risk of generating x-rays?
> 
> hmmm   a source of electrons... the electrode
> supplying the current
> 
>    a high vacuum... if it is a really good pump that
> can pull down to .1
> torr then yes a high vacuum
> 
>    a target...  the other electrode ( and especially
> tungsten... which is
> the choice target material for X-Ray
> production)
> 
> sounds like it could be possible especially if the
> voltage goes into the
> 75KV+ range...
> 
> 
> Scot D
> 
> 
> 
> 


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