Re: X-rays from light bulbs/Tesla Coils !!! where to get a geiger counter
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
Perhaps the x-ray technicians here can suggest an off-the-shelf solution?
P.S. NOS Civil Defence geiger counters are usually available through EBay.
Searching for "Geiger" gave me 70 matches.
>There are other sources around, such as surplus, but probably the cheapest
>decent geiger counter would be the little unit from Aware Electronics
>(http://www.aw-el-dot-com/ ) In its normal form, it plugs into your PC serial
>or parallel port(any old pc works) and uses the pc to generate the "clicks"
>and plot the radiation level, as well as power the unit
>You can also easily modify one of the radio shack amplfier speaker units
>(the beige ones that look like an old style transistor radio) to make a
>> From: Tesla List <tesla-at-pupman-dot-com>
>> To: tesla-at-pupman-dot-com
>> Subject: RE: X-rays from light bulbs/Tesla Coils !!!
>> Date: Wednesday, September 08, 1999 9:30 PM
>> Original Poster: "Basura, Brian" <brian.basura-at-unistudios-dot-com>
>> Ross Overstreet and I have observed both effects in the clear light bulbs
>> are using. They do produce streamers off the filamate and a green glow
>> the glass (they seem to be mutually exclusive according to this thread).
>> guess the real test will be to obtain a Geiger Counter and see what's
>> happening (Hey Ross got a Geiger Counter?).
>> Brian D. Basura
>> UMG Integration Team
>> 1-818-777-0979 (United States)
>> 1-661-224-1994 (United States)
>> Pacific Daylight Time (GMT-8)
>> Original Poster: "Thomas McGahee" <tom_mcgahee-at-sigmais-dot-com>
>> If you can see corona coming off of the filament inside the
>> bulb, then you have a bulb with gas. These are quite safe
>> and produce no measureable x-rays.
>> It is easy to distinguish when a bulb has a high vacuum.
>> When you attach them to a source of HV they fluoresce
>> green, blue, or white along the walls of the tube. If you
>> see corona inside the tube, then there is no fluoresence
>> and no x-rays.