Investigate the spectral interaction of X-ray and learn how to take advantage of this for production applications.
FOSS analytics uses x-rays to monitor the weight and the fat
content in meat at a rate of 38 tons/hour. Fat and meat have almost the same
response to x-rays and variations in the thickness of the samples can have an
important influence on the accuracy of the analysis. FOSS uses dual energy
detectors to evaluate the absorption signal for the sample in different
energies ranges of the x-rays. When multiple signals are obtained of the same
sample the discrimination gets better; however variation in the detector
production influences the acquired signal and the detection algorithm.
You will need to measure how meat and fat interacts with
x-rays for different parts of the energy spectrum. You will compare the
spectral sensitivity of different detectors and use knowledge of detector physics
to develop models which make a simple parametrization of variations in the
detector performance and sample conditions.
The combined knowledge will be used to present recommendation to
optimize the meat/fat contrast and increase the robustness for variation in
measure conditions. The measurements
will be performed in NEXMAP’s laboratories but with access to production units
I samarbejde medFOSS Analytics
Knowledge of X-ray interaction with matter