I worked on Shimadzu 6000 and I faced the same problem, you can solve it easy..

1- try to find your RAW file in the computer database instead of JPG or other formats.

2- use PowDLL Converter (use google to search for it) to convert  .RAW to .rd file 

3- use xpert high score plus to analysis your peaks

I would use ENGAUGE which is a useful tool for converting an image file showing a graph into numbers. More specifically, using this software, you should be able to extract the coordinates (Intensity vs Two Theta) of the different points into a ASCII file. Then, you will be able to perform a FWHM calculation.

Also, I am quite surprised of your question. From what I know, most XRD acquisition softwares allows for exporting the experimental data into a ASCII file.

How do I convert .JPG file to .ASC file?

A professor gave me X pert software but the software can't open these files.

I attached a .JPG file which resulted XRD pattern.

Thank you Mr. Mareau for the tips and answer

I worked on Shimadzu 6000 and I faced the same problem, you can solve it easy..

1- try to find your RAW file in the computer database instead of JPG or other formats.

2- use PowDLL Converter (use google to search for it) to convert  .RAW to .rd file 

3- use xpert high score plus to analysis your peaks

You must have .raw file or to collect the raw file from where you did your experiment.

X'pert high score software directly read .raw file.

In my opinion physically you could measure the FWHM of XRD patterns. Generally it is measured at 50% of intensity height of peak. Since your XRD patterns is Intensity versus 2Theta, then you measure the width of the highest peak at 50% on 2Theta axis. I hope that without conversion of JPG, you will get physical measurement of FWHM.

To analyze XRD data and draw useful conclusions you need to convert the file formats accessible to XRD softwares. Conversion of image files into data (either using Origin or ENGAUGE) may result in misleading conclusions. If you have XRD data file in one format you may convert it into another by using softwares freely available, but extracting precise data from an image file is not a solution. Hope you could understand the possibilities.

You cannot properly analyze a diffraction pattern from an image file, and you certainly can't publish any results without having the raw data. The raw data is there. If you can't find it perhaps think about changing fields.

Agreed with the answers of Peers. You can use RAW file of your XRD pattern and run it in Jade, used for XRD Data analysis, and find the value of FWHM.

Good luck!

You can use RAW file of your XRD data, and then convert to excel and use Origin software to find FWHM.

See it here to calculate FWHM: http://bit.ly/2qvW3ZZ

Arash Motevalian, (Urmia University of Technology , Department of Chemical Engineering),  This research scholar  has a similar question. Therefore, this could be reference to calculate the parameters in your question. However, an additional reference has been given below.

xrd_peakpositions.pdf