The research report on the industrial CT (ICT) ICT-X01

摘要

About the type of scan: ICT can be the 2nd generation CT or the 3rd generation CT according to its scanning type. For the 2nd generation, the object bein scanned translates at one constant angle location at first. Having completed the translation the object rotates a certain angle (generally 12 degrees). Then a new translation begins at the new angle location. In this way the translation-rotation repeats 15 times to cover the total 180 degrees. The translation distance is the length of the chord of the detectors array are in face of the fan-beam divergence angle the object diameter. The number of detectors: 64,32 or 24. The advantages of 2nd generation scan are: less amount of detectors, the field of view is not limited by the fan beam angle and its variation scope is bigger, the image has no ring artifact. The shortcomings of the 2nd generation scan are the solwer scanning speed and the complicated mechanical movement. We choose the second generation scan style to increase the accuracy and the scanning scope.