Table 2 Setup details of synchrotron beamline ID19 used to scan the fossil samples
Voxel size (μm) | 1.28 | 3.5 |
|---|---|---|
Filters (mm) | Diamond 1.4 mm + Al 5.6 mm | Diamond 1.4 mm + Al 2 mm + Cu 0.5 mm |
Insertion device | U17.6 | U17.6 |
Gap (mm) | 20 | 12 |
Scintillator | GGG:Eu 24.6 μm | GGG:Eu 47 μm |
Refractive lenses | N.A. | N.A. |
average detected energy (keV) | 31 | 53 |
Machine filling mode | 90 mA 16 bunches | 200 mA 7/8 + 1 bunch |
Propagation distance (mm) | 200 | 250 |
Number of projections | 4998 / 2499 | 5000 |
Half-acquisition mode | yes / no | yes |
Exposure time (s) | 0.3 | 0.15 |
Scan duration (min) | 39 | 25 scans of 28 min each = 700 min |
Sample list | TMP 1996.12.40 / TMP 1986.30.39 / TMP 1986.42.54 / TMP 1983.103.25 / TMP 1994.31.32 / YPM.1206B / YPM.1460 / YPM.1775 | YPM.1206A |