Research on the Computed Tomography Pebble Flow Detecting System for HTR-PM

Table 2

Experimental parameters.

Parameters	Value
Number of detector units	448
Width of detector units (mm)	2.6
Collimated width (mm)	3.0
Distance of source-rotating center (mm)	858.5
Distance of source-detector (mm)	1316.0
Pixel size of CT images (mm)	0.4
Dimension of CT images
Inner of tracer pebble 1 and 2 (mm)	7.0
Inner of tracer pebble 3 (mm)	4.7
Inner of tracer pebble 4 and 5 (mm)	4.0

: diameter.