Figure 5
Schematic of both fine φ-slicing and ultrafine φ-slicing data-acquisition methods. A rocking-curve model with the reflection profile along the rotation angle is depicted (Gaussian distribution with σφ = 0.1°). A comparison is shown of a typical PILATUS 0.05°/0.05 s fine φ-sliced data acquisition on the left with a 800 Hz 0.00125°/0.00125 s EIGER data acquisition on the right. The individual frames in the EIGER data are very weak but when they are summed (40 frames in the example) the same rotation angle, exposure and total dose as for the 0.05°/0.05 s data are obtained. |