A CT scanner according to the present invention is particularly adapted for scanning the extremities of a patient. Specifically, a method for molding a substrate having known good and bad sites thereon, by blocking the gate area of the bad sites during the molding process. The partition wall is produced by, first, applying a specified film thickness of photoresist on a substrate, second pressing a molding substrate onto a surface of the applied film of the photoresist to form a ridge-like projections which is to be a projecting solution guides, third forming the wall by etching the patterned photoresist film using a mask having a pattern of lines. The magnetic connector is configured for thermally interconnecting the interface means and the heat sink. The motion controller determines whether the necessary area is a transfer-necessary area or a transfer-unnecessary area based on the control information, and transfers the reference image data of the transfer-necessary area from the frame memory to the storage area.