Re: Fluoroscope (fwd)

[<sroys@xxxxxxxxxxxxxxxxx>]

---------- Forwarded message ----------
Date: Sat, 9 Oct 2004 23:24:08 -0400
From: Jack Vandam <snotoir7674g@xxxxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Fluoroscope (fwd)

Hi David,

I have one of the screens you're talking about.  It is possible to expose it
to x-rays and simultaneously snap a picture of the image on the screen.  I
have not actually made a full dress fluoroscope, but just the screen near
the x-ray source can do well.  When I had a stronger source of sparks to
drive the antique bulbs, I could see fluorescence on the screen.  I think
your best source for the screens is Ebay.  That's not where I picked up mine
(but at a flea market), but I've seen 5x5" screens at very reasonable and
very often buy it now prices.   I've also seen activated vials of ZnS for
sale on Ebay, which you could probably use to make your own screen.  Good
luck and they are fun to work with as long as precautions are taken.

Jack



----- Original Message -----
From: "High Voltage list" <hvlist@xxxxxxxxxx>
To: "hvlist" <hvlist@xxxxxxxxxxxxxxxxx>
Sent: Saturday, October 09, 2004 11:02 PM
Subject: Fluoroscope (fwd)


> Original poster: <sroys@xxxxxxxxxxxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Sat, 9 Oct 2004 15:03:54 -0700
> From: David Trimmell <humanb@xxxxxxxxxxxxxxxxxxx>
> To: 'High Voltage list' <hvlist@xxxxxxxxxx>
> Subject: Fluoroscope
>
> Hi all, I will shortly be receiving a nice dental X-Ray transformer with
> tube and filament transformer to go with it. This will be setup as PSU
> for some vacuum experiments, but will also be used with the x-ray tube
> to some x-ray experiments. One such thing I will want to try is a
> Fluoroscope. I will, of course, be using proper Health Physics controls
> and am aware of the hazards. There will be no exposure of "live" tissue.
> But does anyone know of a source for the properly doped Zink Sulfide
> phosphors, or strontium aluminate's? Has anyone here actually made a
> Fluoroscope? I have no intentions of viewing this directly, as I will
> use either a video camera or a reflected image. Believe me I have no
> intention of sticking my head in a potentially lethal x-ray field. Any
> suggestions would be great.
>
> Thanks,
>
> David Trimmell
>
>