Table 2 Experimental parameters for the CT acquisitions

Tube voltage

150 kV

Tube current

66 µA

Focal spot size

7 µm

Filtration

Al (2 mm)

Detector pixel size

49.5 µm

Detector pixel number

2304 × 2940

Detector active area

11.4 × 14.6 cm²

A/D converter

14 bit

Integration time

1.8 s

Angular step

0.15°

Number of projections

2400

Average time for a CT scan

150 min

Source-Detector Distance (SDD)

650 mm

Source-Object Distance (SOD)

120 mm

Object-Detector Distance (ODD)

530 mm

Magnification

5.4 × 

Voxel size

9.1 µm

Penumbra

31 µm

Scanned volume diameter

21 mm

Scanned volume height

27 mm