#F f1f2_BrennanCowan.dat
#C This file has been created using f1f2_BrennanCowan fortran program.
#C This file belongs to the DABAX library. More information on
#C DABAX can be found at:
#C http://www.esrf.fr/computing/expg/subgroups/theory/DABAX/dabax.html
#UT Elastic Photon-Atom Scattering, anomalous scattering factors.
#U3W Sheet_ScatFac
#UIDL xf1f2
#UD Elastic Photon-Atom Scattering, anomalous scattering factors.
#UD
#UD The scattering factor values in this file have been calculated
#UD using the subroutine library by Brennan and Cowan:
#UD S. Brennan and P.L. Cowan (1992), Rev. Sci. Instrum. 63, 850.
#UD
#UD The values for f1 and f2 are calculated using the theoretical
#UD approximation developed by Cromer and Liberman. This theory gives
#UD accurate values far from an absorption edge but does not account
#UD for the effects of neighboring atoms, which can be
#UD critical near an absorption edge.
#UD
#UD The program suite described by Brennan and Cowan (1992) is
#UD available by ftp from the authors from
#UD http://www-ssrl.slac.stanford.edu/absorb.html or
#UD ftp://ftpa.aps.anl.gov/pub/cross-section_codes/sb-1.0.tar.Z
#UD WWW interfaces to the values produced by Brennan & Cowan library
#UD can be found at the URL:
#UD http://www.bmsc.washington.edu:80/scatter/AS_periodic.html
#UD http://www.bmsc.washington.edu/scatter/periodic-table.html
#UD
#UD The data in this file contains 520 energy points in a logarithmic
#UD scale, which can be calculated from:
#UD Cte = log10(1.0D4/30.)/300.
#UD Energy(i) = 30.*10.**((i-1)*Cte), 0