Dual energy techniques are well-established in medical applications. Applying latest developments of Fraunhofer EZRT entirely new fields of application or the enhancement of existing applications become possible. Thus, in contrast to conventional X-ray techniques, quantitative information about e.g. density, mass percentages or other characteristics becomes available.
Dual energy techniques are employing the fact that the attenuation coefficient of a material is different for individual materials. This means that from energy resolving („spectral“) measurements the input data for a quantitative determination of material properties can be obtained.
In practice, this energy resolving measurement is usually conducted by acquiring two X-ray images using different X-ray spectra. Alternatively, a special dual energy detector can be applied. Due to its setup with two different energy channels only one measurement has to be conducted.