Dear all, I just stumbled across the question about what is the unit of f' and f''. The first couple of hits from ixquick.com claim it was e^-. Since e^- is not a unit but symbolises an elemtary particle (of which fractions are considered non-existent), I was wondering whether the unit of f, f', and f'' is actually e (a positive charge!) and the value of f^0 of Fe at its K-edge was actually 26e or -26e - see e.g. Table 1 in http://www.ccp4.ac.uk/courses/proceedings/1997/j_smith/main.html
Cheers, Tim -- Tim Gruene Institut fuer anorganische Chemie Tammannstr. 4 D-37077 Goettingen GPG Key ID = A46BEE1A
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