What are the advantages of industrial CT in use?

Industrial CT refers to nuclear imaging technology applied in industry. Its basic principle is based on the attenuation and absorption characteristics of radiation in the detected object. The absorption ability of the same substance to radiation is related to the nature of the substance. Therefore, X-rays with certain energy and intensity emitted by radionuclides or other radiation sources or γ The attenuation law and distribution of rays in the detected object may be displayed by the detector to obtain the detailed information inside the object, and finally displayed in the form of images using computer information processing and image reconstruction technology.

1. Accurate positioning and easier image recognition

Conventional ray detection technology mainly projects three-dimensional objects onto two-dimensional planes, which is easy to cause the superposition of image information. If you want to obtain the information on the image, it is very difficult to accurately locate and quantitatively measure the target without experience. Industrial CT nondestructive testing can give two-dimensional or three-dimensional images when testing the workpiece. The target to be measured will not be blocked by the surrounding detailed features, and the obtained image is very easy to recognize. The specific spatial position, shape and size information of the target feature can be obtained directly from the image.

2. Higher density resolution

Industrial CT nondestructive testing has outstanding density resolution. The density resolution of high-quality CT images can even reach 0.3%, which is at least one order of magnitude higher than that of conventional nondestructive testing technology.

3. High dynamic response range

For industrial CT nondestructive testing with high-performance detector, the dynamic response range of the detector can reach more than 106, which is much higher than that of film and image intensifier.

4. Images are easier to store, transmit, analyze and process

Because the industrial CT nondestructive testing image is intuitive, and the gray scale of the image corresponds to the material, geometric structure, component and density characteristics of the workpiece, it can not only obtain the information of the shape, position and size of the defect, but also determine the nature of the defect combined with the density analysis technology, which provides a more direct solution to the problems of defect spatial positioning, depth quantification and comprehensive qualitative that have plagued the nondestructive testing personnel for a long time.