Vibration Analysis of Digital Radiography System for Large Container Inspection

The cantilever vibration characteristics of a digital radiography system were analyzed to predict the effect of vibration on the performance of a mobile container inspection system. The static deformation,vibration mode and natural frequency of the cantilever of the digital radiography system were calculated with the ALGOR Finite Element System to verify the strength and rigidity of the cantilever. The maximum amplitude of the cantilever vibration occurs as it starts accelerating. The predictions show good agreement with test results, indicating that the finite element model of the cantilever structure accurately models the mechanical characteristics.     

大型客体X或γ辐射成像阵列探测器的研制

介绍了大型客体Ｘ或γ辐射成像对阵列探测器的技术要求以及国内外现状，超高压阵列电离室的设计、结构、工艺以及主要性能，说明这种阵列探测器在集装箱探测系统中的应用并给出得到的Ｘ—辐射投影图像。