Assuming you haven't meddled with any of the slits and apertures between your measurements, you could try generating a "fake survey" by linearily interpolating the area between the peaks you recorded.

Please note that if you changed slits or apertures, this will lead to complete bogus results.

Dear Sameera,

you can achieve what you are looking for by the following procedure:

1) In the regions tab of your quantify window you need to set the R.S.F. and press the "Calculate Error Bars" button. This will give you a standard deviation for the area.

2) Select all the narrow regions of the elements that you want to quantify by holding STRG while clicking on the narrow scans. Then switch to "Report Spec." in your quantify window. There you have to tick the "Review Report" window and then press "Regions".

3) From the left side, select "ERROR_BAR" and add it to the list on the right. This will add the standard deviation of your At% to your report sheet.

As Jürgen mentioned, for this to make sense all the measurement parameters, like photon flux, pass energy, slits etc., need to be the same for all of your narrow scans.

Best regards

Thorsten

Thank you so much for your help Thorsten Schultz and Jürgen Weippert . I really appreciate it.

Sam