mono-
chromator		 photon-
 energy    wavelength		 instr. energy-
resolution		 max.
Q-range		 dQ betw. analyzers Q-reso-
lution		 flux at
200mA (*)
Si(hkl) [eV] [Å] [meV] [nm-1] [nm-1] [nm-1] [109 phot./s]
8 8 8 15817 0.7839 5.5 67.75 2.10 0.245 22.67
9 9 9 17794 0.6968 2.7 76.22 2.38 0.276 5.42
11 11 11 21747 0.5701 1.5 93.16 2.91 0.337 1.81
13 13 13 25703 0.4824 0.9 110.1 3.43 0.399 ??

(*) Synchrotron in 2/3-fill mode: 200mA stored in synchrotron ring

Fixed offset between neighboring analyzers is d(2Q)=1.5422o.
Q-resolution results from a setting with 20mm horizontal slits in front of the analyzer crystals, which are at a distance of 6300mm from the sample.
Minimum Q-value is typically about 1nm-1.