Table 1. Summary of the acquisition parameters for GI and XPP imaging.
Grating interferometer | Phase propagation | |
---|---|---|
Energy (keV) | 25 | 25 |
Photon flux density (photons mm−2 s−1)† | 1.37 × 1011 | 1.9 × 1011 |
Pixel size (µm) | 6.5 × 6.5 | 3.25 × 3.25 |
FOV (mm) | 14 × 4 | 8.32 × 4 |
Projections | 1440 × 7 | 1440 |
Total entrance dose (Gy) | ∼30000 | ∼5800 |
Scintillator | LAG:Ce 350 µm | LAG:Ce 100 µm |
Numerical aperture | 0.2 | 0.08 |
Exposure time (ms) | 200 | 200 |
Total acquisition | ∼100 min per half brain | ∼20 min per half brain |
Flux measured with a calibrated diode at sample position with precisions lower than a few percent (Lovric, 2015 ▸).