On the comparison to conventional film radiography, using a digital system makes it so much easier to create radiographic reports. Developing films also have an environmental impact and technicians generally find it more comfortable to look at digital images on a monitor rather than physical film on a viewer. How does X-ray Digital Radiography(DR) work in the non-destructive testing industry?
On the comparison to conventional film radiography, using a digital system makes it so much easier to create radiographic reports. Developing films also have an environmental impact and technicians generally find it more comfortable to look at digital images on a monitor rather than physical film on a viewer. How does X-ray Digital Radiography(DR) work in the non-destructive testing industry?
The following are the basic principles and steps of DR non-destructive testing:
X-ray generation: High energy X-rays are generated through a high-voltage power supply and X-ray tubes. The cathode and anode are two important components of an X-ray tube. When high voltage is applied, the cathode emits an electron flow, which is accelerated and collides with the anode to produce X-rays.
X-ray penetration: X-rays have high penetration ability and can penetrate materials and pass through the object being tested. The absorption and scattering ability of X-rays varies among different materials, depending on their density and atomic structure.
Defect display: When X-rays pass through the material and encounter defects or foreign objects, a portion of the X-rays will be absorbed or scattered. These absorbed or scattered X-rays will form images or signals on the detector.
Detector reception: Detectors (such as digital detectors) are used to receive and record X-ray signals passing through materials. Detectors can convert X-ray signals into electronic or digital signals to generate images or data.
Image display and analysis: By processing and interpreting the signals received by the detector, X-ray images can be generated. These images can display information such as defects, foreign objects, and structures inside the material. Operators can analyze and evaluate images to determine the location, shape, and size of defects.
X-ray non-destructive testing is widely used in multiple industries, such as industrial manufacturing, aerospace, nuclear energy and other fields. By adjusting the energy of X-rays, the position and parameters of detectors, and optimizing image processing and analysis methods, accurate detection and evaluation of different materials and defect types can be achieved.