User manual

For a higher dose ranges, e.g. 0-10 Gy the color rational linear function: X (D) = (A

+BD) / (D+C) is often preferred. For even greater dose ranges up to 20, 30 Gy or more,

the rational quadratic or cubic functions are preferred.

The exponential universal calibration is a generic or pre-shaped function determined by

compounding calibration data from many, many production lots of EBT type films. It may

better represent the shape of the response curve of EBT type films and in this way

make it better adapted to the characteristics of any one lot than are the other fitting

functions.

When the calibration is finished, there are a number of save options. Click “File” on the

menu bar and “Save treatment case as …” to save the entire case. Or save the

calibration data by right

clicking on “Film

Calibration”, go to

“Save Film Calibration

Data as Treatment

Object” (see the green

box in the image to the

right). The calibration

curve, calibration table,

function and scanned

images of patches will be stored to use in calculating a dose map in this case or another

case. When a Calibration Treatment Object is reloaded the calibration can be edited.