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No = 32 Scale Pi^2 Mu Vc^2 / (180 Eff RSlits VDiv Re^2 Lamda^3)
in which (using Al(OH)3 measured on a laboratory difractometer as an exemple ) :
Re | 2.82 e-15 m | electron radius |
Vc | 425 e-30 m^3 | cell volume |
Lambda | 1.54 e-10 m | wave length |
RSlits | 5 e-4 rad | receiving slits |
VDiv | 4 e-2 rad | vertical (axial) divergency |
Eff | ~1 | counter efficiency, air absorption |
Mu | 5.7 e3 m^-1 | sample absorption length |
Scale | 1 e-6 | xnd scale factor |
No | 3.10 e6 | Number of incoming photons on the sample |
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