Table 2. Setup specifications and scan parameters.
Case number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
Tube voltage | 35 kV | 40 kV | 40 kV | 40 kV | 35 kV | 40 kV | 40 kV | 40 kV | 40 kV |
Projections | 1200 | 1200 | 1200 | 600 | 1200 | 800 | 800 | 800 | 800 |
Angular range | 360° | 360° | 360° | 180° | 360° | 360° | 360° | 360° | 360° |
Phase Steps | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
Exposure time/step | 5 s | 5 s | 5 s | 5 s | 2 s | 3 s | 3 s | 3 s | 3 s |
Photon counts/step | ∼3140 | ∼5500 | ∼4200 | ∼4750 | ∼990 | ∼1300 | ∼1300 | ∼1300 | ∼1300 |
Visibility | ∼13,5% | ∼10,8% | ∼11,6% | ∼11,2% | ∼21,2% | ∼27,8% | ∼28% | ∼28% | ∼28% |
Water bath | no | yes | yes | yes | yes | yes | yes | yes | yes |
Effective pixel size | 100 µm | 100 µm | 100 µm | 100 µm | 100 µm | 100 µm | 100 µm | 100 µm | 100 µm |
Si-sensor thickness | 450 µm | 1 mm | 1 mm | 1 mm | 1 mm | 1 mm | 1 mm | 1 mm | 1 mm |
Scan time | ∼32 h | ∼32 h | ∼32 h | ∼16 h | ∼17 h | ∼16 h | ∼16 h | ∼16 h | ∼16 h |
G0 height (material) | 55 µm (gold) | 55 µm (gold) | 55 µm (gold) | 55 µm (gold) | 55 µm (gold) | 70 µm (gold) | 70 µm (gold) | 70 µm (gold) | 70 µm (gold) |
G1 height (material) | 8,5 µm (nickel) | 8,5 µm (nickel) | 8,5 µm (nickel) | 8,5 µm (nickel) | 9,5 µm (nickel) | 5,2 µm (gold) | 5,2 µm (gold) | 5,2 µm (gold) | 5,2 µm (gold) |
G2 height (material) | 55 µm (gold) | 55 µm (gold) | 65 µm (gold) | 65 µm (gold) | 65 µm (gold) | 65 µm (gold) | 65 µm (gold) | 65 µm (gold) | 65 µm (gold) |
Distance G0 to G1 | 87,5 cm | 80 cm | 80 cm | 80 cm | 80 cm | 85,7 cm | 85,7 cm | 85,7 cm | 85,7 cm |
Distance G1 to G2 | 87,5 cm | 80 cm | 80 cm | 80 cm | 80 cm | 85,7 cm | 85,7 cm | 85,7 cm | 85,7 cm |
Setup parameters for image acquisition of each sample.