Which part of a sample interacts with the beam first?
I've asked this question over at the Prismatic and MULTEM github sites, so I thought I'd ask here as well :)
If a "pretend" sample has two atoms, A and B, with z = 0 and 5 Å respectively, which atom will be hit by the beam first?
Another way of asking the same question is, "is the sample sat with the z-axis increasing towards the electron gun, or increasing away from the gun"?
Stealing @cophus excellent image from prism-em/prismatic#33:
The reason I ask is that MULTEM and Prismatic operate oppositely - in MULTEM the atom sitting at z=0 will be hit first by the beam. In Prismatic it will be hit last.
Edited by Thomas Aarholt