Sizes and divergences of the photon beam, as obtained from the ESRF Machine group, are as follows:


FWHM Source Size:    
horizontal: σx = 296.7 x 10-6 m  
vertical: σz = 86.9 x 10-6m  
FWHM Source Divergence    
horizontal: σx' = 254.3 x 10-6 rad  
vertical: σz' = 2.6 x 10-6 rad  



Beam Intensity at 30m



Logarithmic beam intensity at 30m