Computer tomograph with part ring formed X=ray source and detector - has double ring system without complementary interpolation

摘要

The computer tomograph (CT) includes a part ring formed X-ray source (3) which surrounds a central measurement field (6). The focus of the X-ray rotates so that X-radiation (5) crosses the measurement field (6) from different directions. After leaving the measurement field (6) the radiation (5) hits the part ring formed detector (7), which is made up of a series of detector elements. The measurement values from the detector (7) are passed to a computer (12) in order to obtain an image of the test object (11). The detector data batches are independent. The results are satisfactory without the need for complementary interpolation. USE/ADVANTAGE - Medical scanning of patients. Enables fast calculation time. Dispenses with hardware unit for complementary interpolation. Avoids disadvantages of complementary interpolation, e.g data inconsistency and interpolation errors. Separation curves of sinograph has smooth curves and removes kinked curves corresp to double part-ring system.