An attenuation model-based dual-energy calibration method for dual-energy luggage inspection system

We propose an attenuation model-based dual-energy calibration (AMDC) method for material decomposition in X-ray radiographic inspection. AMDC uses polynomial terms to the power of real numbers less than one in its calibration process, in order to reduce the influence of beam-hardening effect to material decomposition in radiography. Application of AMDC to dual-energy X-ray images acquired using GATE simulation showed significant improvement in the performance of material decomposition in radiography.