Total Intensity display on X-Ray

[Facundo Bilbao]

Good day, I have a question regarding the X-Ray Intensity display on CASINO in the following image.



In this image I have the X-Ray intensities of Al Ka on a sample of Zr2Al using a beam energy of 15keV. My question is regarding about the information given on the legend "Non-Absorbed Intensity:958.36" and "Absorbed Intensity: 659.07". I don´t understand how is this data calculated, because I imported the data of Intensity vs Depth and my initial thought was that if I integrate the curves I would have the intensity display in the legend, but the result is very different. I also tried to make a summation but this doesn't work either. I would like to know the steps to calculate the intensity display using the data on the graph.

Here is the data imported from the graph (see attachment) (login to see attachments):

Thank you for the attention!