In Situ X-Ray Computed Tomography (CT) Investigation on Localized Deformation and Crack Damage Evolution in a Bimrock by Tracking Rock Blocks

Table 1

The detailed performance index of the 450 kV industrial x-ray CT system.

Performance parameter of the CT device	Index	Unit
Effective scanning diameter	Φ800	mm
Effective scanning height	Φ1000	mm
Maximum scanned weight	200	kg
Penetration thickness for Fe	50	mm
Spatial resolution	0.07 × 0.07 × 0.07	mm^3
Perspective of relative sensitivity	1	%
Density resolution	0.1	%
Minimum scanning thickness	0.03	mm
Fastest scanning time	1	min
Image reconstruction time	30	s
Resolution capacity for crack	0.05 × 15	mm^2
Stomata resolution	Φ0.3	mm
Resolution for inclusion	0.1	mm
Localization accuracy of the workbench	±0.02	mm
Accuracy of the turntable	±5°	/s