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

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Fri, 17 Aug 2007 13:32:46 -0700 (PDT)
From: Timka <tomasdoc2002@xxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Vacuum jar rotary spark gap / thyratron (fwd)

Actually in the case of the X-ray trigger, the spark gap is not needed to have a deep vacuum. In fact, low pressure is perfectly fine to initiate ionization in the cavity.
   
  The problem is that this whole devise would be quite bulky due to requirement of a good cooling and X-ray production. 
   
  As far as glass envelope, unless it would have an internal / external X-ray permissible chambers with a cooling liquid circulating in a manner of high power CO2 laser tubes, I can already imagine the whole devise turning into a pile of molten glass in a matter of minutes.
   
  I’m positive that a lot of people have expertise to add more on this subject but after all it is probably not worth investigating further because:
   
  The devise would have to use a source of hard X-rays to ionize chamber rapidly, so, shielding would be imperative, not like anyone is desperate to have a 2 ton lead wall in their back yard. For the same reason, in order to deliver ionization in the amounts needed through glass barriers at nanofast rates, X-ray generator would have to be enormously power greedy.
   
  Cooling will be vital due to confined SP heat generation.
   
  This was more of a mental exercise using exotic and alternative methods.


Tesla list <tesla@xxxxxxxxxx> wrote:  
---------- Forwarded message ----------
Date: Fri, 17 Aug 2007 15:29:46 +0000
From: David Rieben 
To: Tesla list 
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" 

> 
> ---------- 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. 
> 
> 
> 
> 




       
---------------------------------
Looking for a deal? Find great prices on flights and hotels with Yahoo! FareChase.