After last week’s busy schedule, this week is positively quiet in comparison. The calm is merely temporary, however, as the big SAS conference will kick off this Sunday. During this conference, I hope to meet and greet many of you (and I think I owe a few drinks as well left and right). I have been hard at work preparing the triad of posters for this, which I hope will draw some interest and kick off some interesting conversations (which is, after all, the point of a poster). Speaking of posters, here is one I never showed before. It showcases the applications of McSAS, and has been presented at the CanSAS meeting in Mito earlier this year. The full poster can be downloaded here. See you next week! For those who are not coming, I can always be invited to give a talk :).
I imagine some of you wondering what happened to last Tuesday’s post, and all I can say is: life is hard without internet in a new country. A lot has happened since our arrival, and a lot more will happen in the near future. Meanwhile, two posters remain to be finished before the SAS conference in a week. So what has been done until now? For an insight into moving foibles, please read on…
An off-topic post for this week, as we are at the last of the holiday posts. I will just briefly mention that the deadline for registration for SAS2015 is very fast approaching (and I still have three posters to finish…). For those who are looking for styling tips for their appearance at the conference, here is a site full of arcane knowledge on dress codes (amongst other topics, but unfortunately geared towards men): http://www.artofmanliness.com/ A bit of knowledge can’t hurt!
When correcting data for the many possible data artefacts, I usually prefer to do these corrections on the 2D images as opposed to the azimuthally averaged data (often referred to by the misnomer “integration”). This needs to be done for some direction-dependent corrections, such as for the polarization correction, but not necessarily for others. The background correction, for example, can be done in two ways: subtracting the background image (2D) from the measurement image, or subtracting the azimuthally averaged background data (1D) from the azimuthally averaged measured image. To illustrate the difference, perhaps a small demonstration can suffice.
I am on holiday at the moment, so the blog posts will be a little bit more brief than usual. However, not less exciting! Over the last two weeks, I put together a side view assembly drawing of the latest version of the Ultra-SAXS machine. blue-tinted components are custom metal parts (mostly leftovers from version 1). Reddish parts are 3D-printed components, and white parts are commercial off-the-shelf (COTS) components. The drawing has been made largely by assembling component drawings made by my father for version 1, and technical drawings from the manufacturers of the COTS components. The full drawing, 3D printer files and other documents are available in a Git repository here (CC-BY licensed). It is mostly complete, but there may be a few items still missing.
A quick update on the goings on over here: The move is in full swing at the moment, with the boxes having just been moved out. Work-wise, there is a farewell presentation to finish and another beamtime (for which there is perhaps precious little time left). Fortunately, the previous beamtime with Andrew Jackson turned out alright, with the data corrections done at the end of the beamtime. In the end, a simple script was made that could be used to match a background to a particular measurement, and it looked like Andrew and colleagues managed to find examples of what they were looking for. Despite the stress, we are very much looking forward to the next few weeks. Changing times are always exciting, and we will see what happens — for better or worse — on the other side!
With the SAS conference approaching (have you registered yet?), many of us are looking forward to the excellent talks, posters and coffee sessions (a terribly important, but often overlooked aspect of conferences). I submitted a few abstracts for talks, which have been converted to posters instead (TODO: make three posters!).