Re: X-rays from light bulbs/Tesla Coils !!! where to get a geiger counter

To: tesla-at-pupman-dot-com
Subject: Re: X-rays from light bulbs/Tesla Coils !!! where to get a geiger counter
From: "Jim Lux" <jimlux-at-jpl.nasa.gov> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
Date: Sat, 11 Sep 1999 14:19:55 -0600
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme



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> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Re: X-rays from light bulbs/Tesla Coils !!! where to get a 
geiger counter
> Date: Friday, September 10, 1999 4:33 PM
> 
> Original Poster: Gavin Hubbard <ghub005-at-xtra.co.nz> 
> 
> Hi Jim and list
> 
> I wouldn't recommend running a pc in the same room as a powered up coil.
It
> might be better to use a passive monitoring device such as a
phosphorescent
> sheet or unexposed film (x-rays affect film in a manner similar to
visible
> light). Of course, I would be very difficult to accurately calibrate
these
> detectors.

All a matter of proper EM shielding... Run the detector and pc (or amplfied
speaker.. if you hear lots of clicks,you're getting radiated) inside a
shielding cage of chicken wire or something.  Xrays will go right through
the screening.  The Aware Electronics unit has a peak sensitivity to 60 keV
xrays apparently, and I don't know how fast it falls off. It would be hard
to tell what the energy of the xrays is coming off a lightbulb in the TC
field (it probably ISNT 1 MeV, but a lot less)

> 
> Perhaps the x-ray technicians here can suggest an off-the-shelf solution?
> 

>