Table 2. Crystal and Bragg reflection parameters of the crystal elements of the HHL monochromator.
: Miller indices of the Bragg diffraction vector H. 
: asymmetry angle. 
: glancing angle of incidence. d: crystal thickness. 
= 
: asymmetry parameter. 
and 
are the Bragg reflection’s intrinsic spectral width and angular acceptance, respectively.
| Crystal / function | H (hkl) |
 (°) |
 (°) |
d (mm) |
|
(meV) |
 (µrad) |
|---|---|---|---|---|---|---|---|
| C* / 1st | (1 1 5) | 0 | 81.45 | 0.1 | −1 | 33 | 24 |
| C* / 2nd | (1 1 5) | 0 | 81.45 | 0.3 | −1 | 33 | 24 |