[Noisebridge-discuss] xray machine improvements

Henner Zeller h.zeller at acm.org
Tue Apr 16 15:52:10 UTC 2013

Hi Jake,
On 16 April 2013 01:21, Jake <jake at spaz.org> wrote:

> i improved the performance of the noisebridge xray machine, not by
> increasing the power of the xray source, but rather by replacing the glass
> CRT scintillator (taken from the screen of a macintosh plus) with a Barium
> Platinocyanide screen.

This is very nice. Much easier to photograph, and probably brighter as well
as it is made for this kind of stuff.

> Here is an xray of a CD player mechanism:
> http://spaz.org/~jake/xray-**cdplayer.jpg<http://spaz.org/~jake/xray-cdplayer.jpg>
> Here is an xray of a Clipper card:
> http://spaz.org/~jake/xray-**clippercard.jpg<http://spaz.org/~jake/xray-clippercard.jpg>

This looks promising! How long was the exposure for these pictures ? Do you
think the high-voltage supply can survive longer exposure ?

It is possible to get a bit more contrast out of these pictures by
modifying the curve (see attached mods).

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