FIELD: medicine.SUBSTANCE: C-type frame device for X-ray visualization contains: a C-type frame； a ovable support of the C-type frame； an X-ray source and an X-ray detector. At that, the C-type frame comprises the first end and the second end. The X-ray source is installed at the first end, and the detector is installed at the second end. The C-type frame is mounted on the C-type frame support, so that the X-ray source and the detector are able to move around the object under study along the respective paths of the source and detector, which are two-axis rotation paths based on simultaneous screw motion and roll motion of the C-type frame. The X-ray source comprises the first focal point and a second focal point spaced apart from each other by a distance between the focal points in the bias direction, with bias direction being the same as the source path. The X-ray visualization system contains: a C-type frame device； a mobile means for C-type frame control； and a data processing unit. The data processing unit is configured to control the mobile means for activation of the source and the X-ray detector movement along the respective paths. Also, the data processing unit is configured to control the X-ray source and generate X-rays from the first focal point and the second focal point； and is configured to control the detector and receive the original image data from the detector. The method for tomographic object image data provision comprises the steps of: movement of the X-ray source at the first end of the C-type frame device along the source path and simultaneous movement of the detector at the second end of the C-type frame device along the corresponding detector path； object exposure to the first X-ray radiation from the first focal point towards the detector； or object exposure to the second X-ray radiation from the second focal point towards the detector； detection of the corresponding X-ray radiation from the first and the second X-ray emissions using a dete
