Table 1. Parameters for the KB-based micro-diffraction instrument.
Focus at sample | Focus at midpoint | Focus at detector | |
---|---|---|---|
250 mm camera length | |||
Beam size at sample (V × H) | 3.5 mm × 5 mm | 120 µm × 160 µm | 200 µm × 250 µm |
Beam size at detector (V × H) | 350 µm × 500 µm | 120 µm × 160 µm | 10 µm × 10 µm |
Divergence (V × H) | 1.2 mrad × 2.0 mrad | 0.9 mrad × 1.4 mrad | 0.8 mrad × 1.1 mrad |
500 mm camera length | |||
Beam size at sample (V × H) | 3.5 µm × 5 µm | 200 µm × 270 µm | 300 µm × 350 µm |
Beam size at detector (V × H) | 600 µm × 1000 µm | 200 µm × 270 µm | 15 µm × 15 µm |
Divergence (V × H) | 1.2 mrad × 2.0 mrad | 0.8 mrad × 1.1 mrad | 0.6 mrad × 0.75 mrad |