NDT Technology

NDT Technology

Performance Evaluation of Backscatter Imaging System with Scintillator Detector and Pencil X-ray in Real Environment Conditions

Document Type : Original Article

Authors
1 Radiation Applications Research School, Nuclear Science and Technology Research Institute, Tehran, Iran
2 Radiation Applications Research Institute, Nuclear Science and Technology Research Institute, Tehran, Iran
Abstract
X - ray - based backscattering imaging has attracted increasing attention worldwide and has found a variety of applications in the industry , including non -destructive testing, security inspection , and quality control . In the present study, a backscattering imaging device with a pencil X- ray beam was designed and manufactured . The scanner includes an industrial X - ray generator, two plastic detectors, a chopper wheel, a data collection system, a data processing software, and MATLAB - based image forming . The rotary chopper wheel creates pencil X - rays that sweep the entire sample . The performance of the system was evaluated through a series of tests using oil and paint cans ( full and semi - filled ) . The findings confirm that backscattering imaging is very effective for low atomic and low -density objects such as adhesives, paints, and oils and provides high - quality images . Also , combining the data of both detectors and applying a low - pass filter to the images will significantly improve the quality of the backscatter images . The inherent advantage of backscattering imaging devices is the scanning of materials with low atomic numbers ( adhesives , paints, fluids derived from petroleum, plastics, polymers , explosives, and even aluminum ) , which the results of this study attest to . The findings of this study showed that a wide range of industrial applications can be drawn for this device . The next activity of this paper will be to use the spatial division method to process the signals and compare it with the time division algorithm ( the present study ) . Also , imaging of other light materials is also on the authors' agenda . . . . . . . . . .. . . .
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  • Receive Date 03 November 2024
  • Revise Date 12 February 2025
  • Accept Date 30 May 2025