Beam Spectrum FWHM (eV)

  E (keV)
Vertical Slit width 5 10 20 30
7mm 2.7 10 32 60.0
3mm 1.3 5.3 20.59 44.8
1mm 0.66 1.9 7.5 16.5
0.1mm 0.52 1.51 2.14 2.5




* On the Y-axis we have the FWHM (Full Width Half Maximum) of the beam spectrum after the monochromator have been applied. At this point the beam spectrum has a Gaussian shape.

 

 

 

Number of photons in the beam (in 10^12 units)

The horizontal slit width was set constant at 30mm. For other horizontal slits widths the number of photons will simply be linearly proportional. These numbers take into account the Be-window connected to the Siemens monochromator.

 

 

 

 

 

  E (keV)
Vertical Slit width 5 10 20 30
7mm 0.280 1.10 1.04 0.68667
3mm 0.280 0.666 0.715 0.51667
1mm 0.1002 0.234 0.2635 0.21667
0.1mm 0.0118 0.0201 0.0294 0.019833