I'm a PhD in chemical engineering and work in a testing laboratory for electrical engineering insulating materials. My dissertation was using predictive modelling (some data mining and machine learning, some more classical statistical methods) to estimate material properties from spectral data. I'm trying to combine a full-day engineering job with writing more journal articles in my spare time. Currently not going well but at least I'm not lacking for data!
this post was submitted on 12 Jun 2023
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I'm a postdoc, working on laser-plasma interactions and electron accelerators. My PhD work was on ultrafast electron diffraction.
ultrafast electron diffraction
That's pretty fascinating stuff! I know a lot about electron diffraction in general (in the context of TEM/STEM/4D-STEM), but not ultrafast. What kind of processes were you studying with that method?
Our beamline is still very new (my main focus was actually on building/commissioning it), so for now, we've just been looking at relatively simple processes like the Debye-Waller effect, where the diffraction spots become weaker as the temperature rises.
The ultrafast capability comes from the electron beam having a sub-picosecond duration, which essentially corresponds to the shutter speed of a camera. By varying the delay between a pump laser and the electron probe and observing the change in intensity of the diffraction spots, we can figure out how the heat deposited by the laser diffuses through the sample, and make a "molecular movie" of this process. It's in the same spirit as other pump-probe experiments, like what @Salamander does.
Oh wow, setting up a whole new beamline must have been quite the undertaking!
I actually do a lot of STEM simulations and having accurate Debye-Waller parameters is pretty important to get quantitatively accurate simulations of high-angle annular dark field images (since a lot of the intensity scattered out to those angles is due to thermal diffuse scattering in the crystal). So while they may be (comparatively) simple experiments, know that there are definitely those of us who really appreciate having access to the results!
Social sciences, expert/consultant position. We have our own in-house research, and collaborating with them is always good fun
I studied Biology and Computer Science, have a PhD in Neuroscience and now work in an Engineering department for medical devices, where I am still in contact with Academia through students working for us in different capacities. My main occupation is Software Tester, though. :)
I studied environmental science as a major and am working in hazardous waste site remediation, water and wastewater treatment, and dabble in assisting some civil engineering projects.
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I’m a staff bioinformatics scientist at an academic institution, got my PhD a few years ago and wasn’t interested in a postdoc. I get to work on a huge range of research questions and lots of different technologies. It’s great!
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I have a MSc and PhD in earthquake engineering and I am working as a senior full stack software developer. Life is weird sometimes.
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I was managing a dev team building software for Wifi devices for the Artemis program... Then NASA decided they needed to cut $8,000,000 and descoped that part of the project. Now I'm... Looking for the next thing to do.
I understand they're planning to slap some COTS shit in in place of what we were building. I wish the astronauts well when that shit gets hit by some high energy particles. I'm not salty.
Software engineer working with a company that does materiel handling AGV systems (basically fleets of robot forklifts). Not much in the way of cutting-edge, though I do spend a lot of time thinking about the ethical implications of automation these days.
One of my friends who's in robotics actually was working on a project in materiel handling. I think his project was to work on a robot that was suspended overhead in a box truck (for example) that could get to the back of the truck and pick up packages and bring them to the front where they could be unloaded without shuffling everything around. Not sure if that's anything like what you do, but as someone with very little background in mechanical design his descriptions of the challenges he was trying to work through were really interesting!
I do spend a lot of time thinking about the ethical implications of automation these days.
Yeah it's definitely something that I think is on a lot of people's minds recently, although it sounds like you've got an especially direct line of sight on the topic!