TABLE II.
Data quality indicators in function of rounding the JUNGFRAU pixel readout value to a multiple of photon count for the lysozyme crystal dataset collected at the Swiss Light Source X06SA beamline with the JUNGFRAU 4M at 1.1 kHz using 12.4 keV x-rays, 100% beam transmission, and 0.088°/880 μs steps. 2045 images (180° rotation) were taken for data analysis. The low resolution shell is defined as 50–3.25 Å, while the high resolution shell is 1.18–1.31 Å. The size of the dataset was calculated after compressing with Bitshuffle/LZ4.
| Rounding to a multiple (photons) | Rmeas low/high res. shell (%) | Mean anomalous peak height for S (σ) | Refinement statistics Rwork/Rfree (%) | Bitshuffle/LZ4 compression (bits/pixel) |
|---|---|---|---|---|
| 1/8 | 2.2/18.2 | 15.3 | 11.7/13.6 | 5.0 |
| 1/4 | 2.2/18.3 | 15.1 | 11.7/13.4 | 4.1 |
| 1/2 | 2.1/18.5 | 15.2 | 11.6/13.4 | 3.1 |
| 1 | 2.1/18.9 | 15.2 | 11.6/13.5 | 2.3 |
| 2 | 2.2/22.8 | 14.7 | 11.8/13.5 | 1.5 |
| 4 | 2.1/27.8 | 14.3 | 12.5/14.5 | 0.90 |
| 8 | 2.1/30.6 | 13.9 | 15.4/17.6 | 0.39 |