Dear All, Hi, how are you, guys. My name is Jonglak choi, who is working on obtaining quantity of crystalline through CI(%)-cyrstal index for natural cotton (cellulose type I). We have Rigaku XRD instrument for obtaining defraction pattern from the cotton yarns. In order to know about the quantity of crystalline phase out of natural mixture of amorphous and crystalline cellulose, I think that 1. I should run XRD to get real one without preferred orientation and z-shift, 2. I should have good and easy way to separate the phases. Do you have any suggestion for 1, and 2 above in my statement? For example. 1. Running XRD, I found glass slides in the room for XRD, quartz or pyrex glass plates; I am interested in 18 degree, and ~20 degree 2theta. which one I can use and background problem? If I simply wrap around the glass slide, hair from yarn should be problem? because it will stick out and move during the collection? If I grind the yarn into powder-it becomes cotton ball after grinding in wiley mill-and fixed on the glass slide with geese, is there any concern?
2. Processing data, after collecting diffraction pattern, what is the best and easy way to know how much crystalline phase exist out of amorphose? I do not have a software for deconvolution now. I am looking forward to hearing suggestions. Thank you and have a great day Best, CJ
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Please do NOT attach files to the whole list <alan.he...@neutronoptics.com> Send commands to <lists...@ill.fr> eg: HELP as the subject with no body text The Rietveld_L list archive is on http://www.mail-archive.com/rietveld_l@ill.fr/ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
