Novel correction method for X-ray beam energy fluctuation of high energy DR system with a linear detector

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YANG Min, CHEN Hao, MENG Fan-Yong and WEI Dong-Bo. Novel correction method for X-ray beam energy fluctuation of high energy DR system with a linear detector[J]. Chinese Physics C, 2011, 35(11): 1074-1078. doi: 10.1088/1674-1137/35/11/018
YANG Min, CHEN Hao, MENG Fan-Yong and WEI Dong-Bo. Novel correction method for X-ray beam energy fluctuation of high energy DR system with a linear detector[J]. Chinese Physics C, 2011, 35(11): 1074-1078.  doi: 10.1088/1674-1137/35/11/018 shu
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Received: 2011-01-27
Revised: 2011-03-21
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Novel correction method for X-ray beam energy fluctuation of high energy DR system with a linear detector

Abstract: A high energy digital radiography (DR) testing system has generated diverse scientific and technological interest in the field of industrial non-destructive testing. However, due to the limitations of manufacturing technology for accelerators, an energy fluctuation of the X-ray beam exists and leads to bright and dark streak artifacts in the DR image. Here we report the utilization of a new software-based method to correct the fluctuation artifacts. The correction method is performed using a high pass filtering operation to extract the high frequency information that reflects the X-ray beam energy fluctuation, and then subtracting it from the original image. Our experimental results show that this method is able to rule out the artifacts effectively and is readily implemented on a practical scanning system.

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