And now, how different are the Rietveld populations
in the ICSD database (release 1998-1) :
   REM = RVP : 5925 entries (Rietveld refinement)
   REM = XDP : 6698  (X-ray powder)
   REM = NDP : 5585  (neutron powder)
   REM = SNP : 183  (synchrotron powder)

Combinations :
      RVP+NDP = 3276 entries (Rietveld + neutron)
      RVP+XDP = 2557 entries (Rietveld + X-ray conventional)
      RVP+SNP = 126 entries (Rietveld + synchrotron radiation)

The authors populations are very distinct and can be seen at :
    http://pcb4122.univ-lemans.fr/icsd/icsdrndp.txt  (RVP+NDP)
    http://pcb4122.univ-lemans.fr/icsd/icsdrxdp.txt  (RVP+XDP)
    http://pcb4122.univ-lemans.fr/icsd/icsdrsnp.txt  (RVP+SNP)

Some love neutrons, others love X-ray, some love both,
few prefer synchrotron (but this last population is increasing
fast).

Armel Le Bail - Universite du Maine, Laboratoire des Fluorures,
CNRS ESA 6010, Av. O. Messiaen, 72085 Le Mans Cedex 9, France
http://www.cristal.org/

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