Research progress of Nano CT imaging

Nano CT is a new kind of imaging device which is derived from Micro CT but with higher resolution.At present,it has been wildly used in many fields such as biology imaging,pathological examination,integrated circuit testing and so on,and it is believed to have broad application prospects.This paper focuses on the development,the basic principles,the key technologies,all kinds of imaging problems of Nano CT and some limitations in imaging such as motion imaging and multiresolution imaging.In the last part of this paper,several new technologies are introduced which may be applied in prospective more advanced Nano CT to eliminate the limitations in the imaging.These new techniques may greatly help improving the Nano CT in the future.