Applications of SAXS: Self-assembled Structures

Martin's Molecule

[Ed: It looks like there is more interest than I thought in the field of SAXS; the "Everything SAXS" review paper has been downloaded over 10000 times!]

One more application we found for small-angle scattering was to research structures molecules assemble in when immersed in liquids. Many of us are familiar with the micellar structures that appear in water-based solutions, but what happens in other solvents? Read more »


Comparisons of Doom: line vs. pinhole.

Line-collimated instrument (top, not a SAXSess), versus a pinhole-collimtated instrument (bottom, not a Nanostar)

[ed: My current project is running at an end, so if you happen to have a job offer I cannot refuse, I will seriously weigh it against the (tenured) job offer I got from NIMS!]

The typical argument in favor of the line-collimated “Kratky”-type instruments is that its X-ray flux is very high and that therefore you need only short measurement times. However, its data needs to be corrected through a “desmearing”-procedure, amplifying uncertainties and noise in the process. Does this approach then really give you better data? Let’s find out! Read more »


To the States, and other cutting-room clippings

Capillary holder in action

Dear readers,

As you read this, I’ll be trying to get to the Denver X-ray Conference in Montana. I’ll be giving a talk there on Friday morning introducing small-angle scattering to fellow X-ray afficionados and hopefully convert a soul or two to the narrow field we’re in. Please come and say hi if you’re around, or contact me on my twitter account (connectivity permitting), user @drheaddamage. I have two small bits I want to talk about today: a new sample holder and 3D SAXS. Read more »