a sentient electron 🧠🔬⚛️

@vivposts @rieszspieces @PeepNSheep1 longtime followers will remember

@rieszspieces @PeepNSheep1 @quantumbeans do electrons drink espresso

I'm going to round up fifteen crank physicists and make them help me with my DFT calculations. (please hold) quantum gravity string theory fundamental God Particle theory of everything Riemann hypothesis relativity Einstein pilot wave

@jwt0625 arxiv.org/abs/2411.14518

from a bunch of fundamental constants you could find electrons in materials are vibing at 10s to 100s of attoseconds, how would one image their motion? We can use the fastest thing we have control over (femtosecond laser, gives you 5 fs laser pulses) to generate an electron pulse (100s of fs) to probe the sample, as well as use the same thing to gate that pulse right before it reaches the sample, down to ~600 as or 6e-16 s. The gating is done with an optical pulse that is mostly circularly polarized except for half a cycle of linear polarization, and this part couples with the electrons and filters/scatters them in time domain.

@amphichrome_ 👀

who wants me to send them the memes i stumble across as i clean out my camera roll

green [arXiv:2502.11912]

@vivposts brr

guy who is making an electron refrigerator

always knew these are fake

collaborative editing with a shared box folder:

before anyone asks, i don’t know what the incident was

say hello to mr sparky

FEI shares this legacy. Here’s the scan input selector, 4022 192 9733

@beamshift 🎄

simply having a wonderful Christmas TEM

@ShellyStem @sineatrix @APSphysics ducks are great microscopists

@sineatrix @APSphysics Excuse me you forgot the best bits….

Don’t let microscopists decorate your tree @APSphysics

full bridge rectifier!

hopefully the answer isn’t “somewhere in there” because it’s a little late now

i wonder where that screw was supposed to go

@aandr314 look closely

@quantumbeans what do you mean same scale, one says 1µm, another says 2µm

thermal field emitter (top) vs cold field emitter (bottom) both images are the same scale

@macona x.com/quantumbeans/s…

@quantumbeans Oh, it's demountable? Thats neat. How many kV?

smells like UHV

@macona 300

@macona this is the accelerator of the TEM, which we removed to replace the field emission tip and are now baking to reach UHV

@quantumbeans This is something separate from the TEM, right?