RE: Thinking About A Geiger Counter

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Dave Halliday" <dh@xxxxxxxxxxxxxx>

Geiger Counters count all kinds of _Ionising_ Radiation.
Ionization is how they work!

The detector has two electrodes and is filled with an inert gas at low
pressure.
When this gas is ionised -- either by a "particle" or by direct action
by an X-Ray or whatever, the gas conducts slightly and an event or pulse
is registered.

http://en.wikipedia.org/wiki/Geiger-M%C3%BCller_tube

They pick up X-Ray's just fine.
Bring your counter to your dentist or doctor next time you have a
checkup and ask to see for yourself...



> -----Original Message-----
> From: Tesla list [mailto:tesla@xxxxxxxxxx]
> Sent: Sunday, November 06, 2005 4:45 PM
> To: tesla@xxxxxxxxxx
> Subject: RE: Thinking About A Geiger Counter
>
>
> Original poster: Skip Malley <skip@xxxxxxxxxxxxxxx>
>
> I am familiar with the original thread.  I was responding to one
> coiler's mistaken assumption that a Geiger counter could
> measure X-rays.
>
> The word RADIATION is a word that, unfortunately, is very much
> overused and the various meanings are under-explained.
>
> RADIATION simply means ANY ENERGY COMING FROM ANY OBJECT.
> A RADIATOR is ANY ITEM THAT EMITS ENERGY.
>
> That energy can be of any type or frequency / wavelength.  It is
> unfortunate that the words X-RAYS and RADIATION are often used
> interchangeably and one unfortunately used when the other is the
> intended meaning.  My intent in my original reply was to
> point this out.
>
> I very well know that high voltages striking objects is something
> that creates X-RAYS.  My intended meaning is that Geiger counters
> count particles, not x-rays or other radiated energy.
>
> Skip
>
> At 01:10 PM 11/6/2005, you wrote:
> >Unnhhh... Skip -- the original question was brought about by the very
> >interesting: "Lab Sparks make X-Rays" thread.
> >Check the list
> >
> > > -----Original Message-----
> > > From: Tesla list [mailto:tesla@xxxxxxxxxx]
> > > Sent: Thursday, November 03, 2005 8:07 PM
> > > To: tesla@xxxxxxxxxx
> > > Subject: Re: Thinking About A Geiger Counter
> > >
> > >
> > > Original poster: Skip Malley <skip@xxxxxxxxxxxxxxx>
> > >
> > > A Geiger counter measures particles released from Uranium and has
> > > ABSOLUTELY NOTHING to do with the relatively low
> frequency energy of
> > > a Tesla coil which is in the frequency range of an AM radio
> > > transmitter.  It is like using an ultrasonic microphone
> listening for
> > > earthquakes.  Tesla coils emit low frequency radio waves, not
> > > gamma rays.
> > >
> > > Geiger counter measurements are of ABSOLUTELY no value to
> a coiler,
> > > unless you live next to a Uranium mine.
> > >
> > > Skip
> > >
>
>
>
>
>