Water is in principle the best a-priori standard we have for absolute intensity calibration, and there are several articles demonstrating and exploring this. Indeed there are two nice things to say about water …
With a peak in the middle of the traditional SAXS region, a strong scattering pattern and a shelf-life of several years (when kept dry and in the dark) this powder is the de-facto …
When we claim that no standards are needed for SAXSLAB’s GANESHA, it is because the tools available for so-called primary calibration are ALL available within the SAXS/WAXS system. For q-calibration we usually …
Glassy Carbon, when calbirated by Jan Ilavsky at APS, is in our opinion the very best secondary standard that exists for absolute intensity calibration. But please be careful. All glassy carbon is …
Silicon powder, when prepared by NIST, is an excellent WAXS standard…..Homemade stuff, ground to a powder, however, not so great, due to strain induced during grinding or milling. So the NIST standard …
With a rich structure consisting of a large number of peaks, collagen is a nice low-q standard. Various sources of collagen are shown in the literature: rat tail, turkey and chicken At …