Many people have called to ask if Supertech X-Ray Technique Calculator works with CR / DR imaging Systems. The short answer is, "Not very well." We were never able to successfully convert the master film, which is based on optical densities, to the many image receptors on the market in a universal manner. We now have developed iSupertech Digital X-Ray Technique Calculator App.
Click the top item on the left menu, or search our site for iSupertech
The long answer to why the original Supertech Slide Rule does not work well with CR and DR is:
The problem we are facing is determination of the Correction Factor. As you know, the Correction Factor is what calibrates the techniques to the performance of your X-ray equipment. Our Master Film is based in Optical Density. CR / DR work in Pixel Values.
It is very easy to say, "Convert the Optical Density based Master Film to Pixel Values and Supertech will work."
The hard part is this: The pixel for CR / DR is not standardized. In print media such a books or newspapers, the pixel is a standardized value. It is a common assumption that the pixel in CR / DR is also standardized. Unfortunately that assumption is not correct. The CR / DR pixel not only varies from manufacturer to manufacturer of imaging equipment – it can vary within a manufacturer by model of equipment.
In other words, a GE pixel is not the same as a Phillips pixel is not the same as a Fuji pixel or Hologic pixel or Shimadzu pixel, etc. A GE Model XYZ can have a different pixel value than a GE Model ABC.
Supertech is simply not poised to make all the conversions that would be required to bring our product into the CR / DR world. We are waiting patiently for the CR / DR pixel to be a standardized value. At that point in time, we will do one conversion of our Master Film to the CR / DR pixel. Until that day, we are forced to say, "Supertech is not very easy to use with CR / DR."
For those who are working in the Film/Screen world of imaging, Supertech is definitely the Technique Calculator of choice.