In China, the first -ray ICT equipment was born at Chongqing University in May 1993. For this equipment, Co-60 radiation source with 1 Ci and 30 Ci was used, and spacial resolution is about 0.5mm, and density resolution is about 0.5%, and the diameter of the test object can be 300mm, but the price of the chinese ICT equipment is only about a half on the same type of ICT equipment producing abroad other than China.

Besides -ray ICT, Chinese are engaging in research and develop x-ray ICT to meet foreign and domestic needs. (Full text of paper not to be published)