Talk:Wide-angle X-ray scattering

Out of favour for what?

What techniques have replaced WAXS? 90.194.203.28 (talk) 10:18, 5 October 2012 (UTC)[reply]

Is this page necessary?

The page is largely incorrect. But more than that, once corrected it would add little to the short statement on the page "X-ray scattering techniques". I suggest deletion.

Comments on the content:

Wide-angle X-ray scattering (WAXS) is often distinguished from Wide-angle X-ray diffraction (WAXD) in that WAXS is scattering from disordered materials, and WAXD is scattering from crystals. This article starts by saying

"Wide-angle X-ray scattering (WAXS) or wide-angle X-ray diffraction (WAXD)[1] is an X-ray-diffraction[2] technique that is often used to determine the crystalline structure of polymers".

The only references are to X-ray diffraction papers, not scattering.

WAXS is not limited to polymers, it is used to study liquids of all sorts. The determination of crystalline structure relates to WAXD

"Wide-angle X-ray scattering is the same technique as small-angle X-ray scattering (SAXS)"

this is misleading. Because the experimental and data analysis techniques are so different they are not the same. One might as well say it is the same as SANS

"a somewhat out-of-favor technique for the determination of degree of crystallinity of polymer samples".

Determination of crystallinity depends on comparing areas of broad (liquid-like) peaks with areas of sharp (crystalline) peaks. So it could be described using WAXS or WAXD. The result is simply called 'X-ray crsytallinity' to compare to thermal analysis or density measurement. So not a good example specifically for WAXS

— Preceding unsigned comment added by Clavipes (talk • contribs) 01:37, 19 September 2016 (UTC)[reply]