A DATA DISC SYSTEM FOR A COMPUTED TOMOGRAPHY X-RAY SCANNER

摘要

A computed tomography X-ray scanner employs a plurality of discs 56a-d which are asynchronously operated by controllers 58a-58d. A processor 54 either writes data in parallel into the same cylinder of different disc drives 56a-d and subsequently reads data in parallel from different cylinders of the discs into a memory unit 46, or writes data from the memory 56 in parallel to different cylinders of the disc drives 56a-d and reads data in parallel from the same cylinder of different ones of the disc drive, so that the data in converted from source fan format into detector fan format.