Research on Improving Image Quality of Flying Point Backscatter Security Inspection Instrument
Backscatter imaging technology is a surface imaging technique that utilizes the Compton scattering effect of X-rays and is sensitive to organic matter.Flying point scanning is widely used in the industry for imaging,but in the case of imaging at high speeds,factors such as mechanical structure processing and electrical control errors can cause the back scatter image contour to be not delicate enough,the boundary to shake,and the contrast difference to be not significant enough.Based on a self-developed flying point type backscatter imaging system,it is deeply studied that the root causes of image quality problems and implements a series of improvement measures,including improving the motion accuracy of the chopper wheel flying point structure and using an integral detector to improve the image acquisition mode.At present,it is applied to imaging systems for experimental verification.The spatial resolution can clearly distinguish polyethylene wire pairs with a diameter of 9 mm.After penetrating a 6 mm thick steel plate,the outline of the polyethylene test card is clearly visible,successfully improving the quality of scanned images and verifying the effectiveness of the solution.This provides a practical and feasible improvement idea for improving the image quality of backscatter security inspection systems in the industry.
backscatter imagingflying point typeimage qualityimage noiseintegral detector
万方数据
维普
