X-ray radiation range may be 5-10 meters, 50 meters away from the possibility of radiation is very small. Set up a shielding chamber as needed, the shielding chamber consists of removable shielding material components. Its shielding capacity should be determined according to the dose of X-rays operated and the distance, obstacles, geographical conditions.
And the X-ray absorbed dose rate of X-ray air outside the boundary of the control area of the X-ray flaw detector should be no more than 20μGyh-1, and set up obvious warning lines and radiation warning signs, manned. Supervision area is located outside the control area, allowing the relevant personnel in this activity. Its boundary dose rate should not be greater than 2.0μGyh-1.
Expanded Information
Mobile Flaw Detector is one of the most important equipments for non-destructive testing work. Used with metal, non-metallic and other materials made of parts, casting and welding parts for nondestructive testing to determine its internal defects, slag cracks, porosity, poor welding (no weld-through). Widely used in machinery, chemical industry, shipbuilding, high-pressure vessels, defense industry, scientific research, automotive, aerospace, refractory materials and other industries.
The flaw detector is divided into two types: directional radiation and circumferential radiation. Directional radiation is fixed, ray beam radiation cone angle is generally in the range of 40 ° ~ 45 °. Circumferential radiation ray beam is in a perpendicular direction to the axis of the X-ray tube into a 360 ° circumference at the same time the radiation of X-rays, which for the detection of large-diameter pipe fittings and spherical containers of annular weld, through a single exposure can be completed throughout the weld flaw detection photographic work, and thus can greatly improve the efficiency of detection.
Baidu Encyclopedia - X-ray Flaw Detection Machine
Knowledge.com - Analysis and Evaluation of Radiation Safety and Environmental Impacts of Industrial X-ray Flaw Detection Projects