Table 2.

Specifications and settings for typical μCT datasets.

Image category	4× baseline	8× baseline	16× baseline	4× with in situ compression	20× with in situ compression
Source voltage [kV]	50	50	50	40	40
Source amperage [A]	80	80	80	75	80
Pixel size [m]	3.60 ± 0.08	1.80 ± 0.04	0.900 ± 0.02	4.00 ± 0.09	0.66 ± 0.02
Number of projections	3001	3001	2401	3201	1801
Number of z-slices	995	991	976	1856	970
Size of image slices [px]	988 by 1009	988 by 1009	984 by 1009	987 by 1009	987 by 1009
Non-local means cut-off	0.01	0.02	0.045	0.015	0.08
Non-local means patch size	5	7	9	9	4
Non-local means search distance [px]	5	7	7	9	5
Unsharp mask kernel radius [px]	1	1	2	2	N/A
Unsharp mask strength	1	1	0.5	1	N/A
Hysteresis threshold, lower [graylevel]	48	52	98	43	191
Hysteresis threshold, upper [graylevel]	58	62	108	51	231
Binary closing disk radius [px]	1	1	2	1	N/A

Thorough descriptions and complete listings of specifications and settings, including uncertainties on measurands, can be found in the documentation and notes in the respective Python methods and parameters files.