Hi Ian, good to hear! Hi everyone, thanks for the etymological - and 
etiological - discussion. I'm good whatever the choice.

John, I beg to differ with the absolute statement that xfels offer damage free 
hkls - back in 2016 yet another great experimental work, by Inoue et al 
(https://www.pnas.org/content/113/6/1492), showed global loss of diffraction in 
a protein crystal analog as soon as 10 fs from exposure start (later estimated 
in Mx experiments by I. Schlichting's team).

Cheers,
José
-> Digression: And I expect neutrons will do a similar job exciting the crystal 
with some phonon-magnetic moment coupling and changing the magnetisation state 
of the electronic structure pretty fast. 
-> Digressing even further, this might be a mechanism that underpins allosteric 
effects, so neutron mx might be a way to tease them.

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