X-Ray Radiation Collimator Test Tool (6" x 12") (1/2 intensifying screen)

Description

X Ray Radiation Collimator Test screen.......You get 1 of the 4 screen halves shown
You get just 1 out of the 4 screen halves shown
Flexible
The 2 halves remaining have no identification marks printed on them.  The 2 halves (pair) that I already sold had Dupont Cronex Hi-Plus  MC 400110 printed on them.  All of these cassettes were used on the same panoramic machine, so this remaining pair should be similiar.
Technicians use these to TEST your X Ray machine.  If your machine is working properly, a round area will glow green-blue only when exposed to x-rays.  Easy to use. Dim the room lights some,  lay the screen on a table, aim your tube head at it, and push the expose button.  The round radiation pattern should show up on the screen if your x-ray is working.
You could use these for their intended purpose...as an x-ray intensifying screen, BUT these screens have minor finger fold marks extending 2 1/4" from the outside edge.  On an x-ray, these marks might show up at the area of the ascending ramus (lateral border) on both sides, which usually is not a critical area for diagnosis.
If you want to use these for panoramic x-rays, and want perfect images, spend 5 and get new ones.
NO RETURNS;  This item works as described, and it is a very good price,  but I don't want someone to buy it, use it to test their machine, and return it at my expense.
NO RETURNS                    NO RETURNS            NO RETURNS
Thank You....Fred Stewart Feld, DMD (retired)
15cm x 30cm
6" x 12"
Continental USA only; Others E-Mail first