The Atomic Scattering Factor Files

H He
Li* Be* B C N O F Ne
Na Mg* Al* Si* P S Cl Ar
K Ca Sc* Ti* V Cr Mn Fe* Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y Zr* Nb Mo* Tc Ru* Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La* Hf Ta W* Re Os Ir Pt Au* Hg Tl Pb Bi Po At Rn
Fr Ra Ac
Ce Pr Nd Pm Sm Eu Gd* Tb Dy Ho Er Tm Yb Lu
Th Pa U

* Elements which have been updated since the publication of the tables in July 1993.

Download the data files

Tab delimited ASCII data files for the individual elements are available from the periodic table above. The files contain three columns of data: Energy(eV), f1, f2. There are 500+ points on a uniform logarithmic mesh from 10 to 30,000 eV with points added 0.1 eV above and below "sharp" absorption edges. For some elements data on a finer mesh includes structure around absorption edges. (Below 29 eV f1 is set equal to -9999.)

A Gzipped archive of files for all 92 elements.