Re: Vacuum jar rotary spark gap / thyratron (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Sat, 18 Aug 2007 15:34:45 -0700
From: Frank <fxrays@xxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Vacuum jar rotary spark gap / thyratron (fwd)

15 KV is not quite enough to produce X rays. Further, using X rays to 
trigger a gap is a lot of extra equipment and safety considerations.

A simpler solution would be to use some radium watch hands in a tube 
to ionize the gap. They used to use radioactive material in spark 
gaps for radar transmitters and in some of the telephone switching 
tubes to name a few.

Frank

At 12:17 PM 8/17/2007 -0600, you wrote:

>---------- Forwarded message ----------
>Date: Fri, 17 Aug 2007 15:29:46 +0000
>From: David Rieben <drieben@xxxxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Cc: drieben@xxxxxxxxxxx
>Subject: Re: Vacuum jar rotary spark gap / thyratron (fwd)
>
>Hi Bill,
>
>Yes, while 15 kV x-rays would be of very low energy, it was my understanding
>that Tim was proposing "triggering" his vacuum spark gap with an EXTERNAL
>x-ray source.? Besides, I'm not sure if 15 kV produced x-rays would even be
>able to cause enough ionizaton to effectively alter the vacuum SG's breakdown
>voltage?
>
>--
>David Rieben
>
>-------------- Original message --------------
>From: "Tesla list" <tesla@xxxxxxxxxx>
>
> >
> > ---------- Forwarded message ----------
> > Date: Fri, 17 Aug 2007 07:09:36 -0600
> > From: Gomez Addams
> > To: Tesla list
> > Subject: Re: Vacuum jar rotary spark gap / thyratron (fwd)
> >
> >
> > On Aug 17, 2007, at 6:27 AM, Tesla list wrote:
> >
> > >
> > > ---------- Forwarded message ----------
> > > Date: Fri, 17 Aug 2007 04:22:59 +0000
> > > From: David Rieben
> > > To: Tesla list
> > > Cc: drieben@xxxxxxxxxxx
> > > Subject: Re: Vacuum jar rotary spark gap / thyratron (fwd)
> > >
> > > Tim,
> > >
> > > I hate to shoot your idea down in flames but that sounds like a
> > > very expensive, bulky and dangerous setup. You would have to
> > > worry about the x-rays ionizing more than just the SG space, too,
> > > like your flesh, for instance!
> >
> > Um, while I don't disagree with your basic premise that this idea
> > _IS_ probably a bad idea which should not be pursued, I don't think
> > 15kV x-rays are going to penetrate the bell jar.
> >
> > - Bill "Gomez" Lemieux
> >
> > ................................................................
> > If Bill Gates had a nickel for every time Windows has crashed...
> > Oh wait, never mind.
> >
> >
> >
> >