Realization and application of simulation technology in Direct Radiography
When x-ray penetrates through objects, its energy will attenuated and the attenuation rate relays on the distance that the ray passed. Computer simulation technology was realized and applied in radiographic testing according to this principle. The simulation process comprises 4 steps: modeling of the workpiece, setting of the layout of the testing, calculating of the distance that the ray passed, quantifying of the distance to obtain simulation image. Then, the quantification method of the depth (or height) of defects in direct radiography (DR) with x-ray linear array detector was studied by simulation technology, and the parameters affecting the result and feasibility of the testing method were analyzed subsequently. Finally, computerized tomography (CT) was simulated to study tomographic reconstruction algorithm, and how to upgrade DR to CT was discussed.
Direct radiography Computer simulation Defects depth quantification X-ray linear array detector
Chaoming SUN Guangping TANG Zengyong WANG Qiang YANG
Institute of Machinery Manufacturing Technology,CAEP, Mianyang,China 621900
国际会议
第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)
上海
英文
231-237
2008-10-25（万方平台首次上网日期，不代表论文的发表时间）