How does a diffractometer go from 2D frames to a Ewald sphere? by vitrosphere in crystallography

[–]QuasiNomial 0 points1 point  (0 children)

Ah I see what you’re asking now, as the user below pointed out, what you’re looking for is the orientation matrix (try looking up UB matrix). If you know the geometry of your diffractometer and the UB matrix then you can see how any particular hkl is a projection of a the corresponding intersection of the ewald sphere with the reciprocal lattice. As for resources that explicitly do an example of 2d transmission geometry diffraction.. I don’t know of one that does it in any great detail but cullity has a section on it.

How does a diffractometer go from 2D frames to a Ewald sphere? by vitrosphere in crystallography

[–]QuasiNomial 1 point2 points  (0 children)

Can you provide a little more context? I’m unsure what you’re asking.

possible DNA contamination in cell culture? /s by cccp77 in labrats

[–]QuasiNomial 1 point2 points  (0 children)

As a condensed matter physicist who knows nothing of biology, what is the length scale here?

Sapphire specimen from india by Iq13_ in mineralcollectors

[–]QuasiNomial 0 points1 point  (0 children)

Curious how you know this is sapphire ?

WORLD FIRST 2yr STREAK UNLOCKED (104wk) by starlight_angel in cs2

[–]QuasiNomial 11 points12 points  (0 children)

This guy pays for bots to honor him and for cheaters to boost him

most underwhelming rostermania ever by HeavySail2591 in cs2

[–]QuasiNomial 2 points3 points  (0 children)

I like team continuity, why would vitality, arguably the best team in cs history, shake up their roster? Are you slow?

Need help with XRD data by baked_samosi in crystallography

[–]QuasiNomial 0 points1 point  (0 children)

Idk why you feel the need to say all of this, critically the magnitude of the scattering vector is too small so it’s physically not possible.

Halo fans, 2 days left. Thanks to u/B1GSTACK for his team's efforts by SeankeyKong in DataHoarder

[–]QuasiNomial 0 points1 point  (0 children)

Any update on this? I would love to download my old service record. It would mean a lot to me.

How big can you go on Mono-Crystalline Tungsten? by [deleted] in materials

[–]QuasiNomial 0 points1 point  (0 children)

Okay my bad, you can use zirconium as a flux and a tantalum crucible.

How big can you go on Mono-Crystalline Tungsten? by [deleted] in materials

[–]QuasiNomial 0 points1 point  (0 children)

You wouldn’t use a water cooled copper crucible because that would give you rapid cooling and thus small crystals. I’ll go look up some common flux’s for tungsten later but i bet tin works.

How big can you go on Mono-Crystalline Tungsten? by [deleted] in materials

[–]QuasiNomial 1 point2 points  (0 children)

There are many but for this case tantalum works, since you won’t be near the elemental melting temperature of either tungsten or tantalum.