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    • 6. 发明申请
    • X-RAY IMAGING DEVICE USING DUAL ENERGY X-RAY ABSORPTIOMETRY
    • X射线成像装置使用双能X射线吸收光谱法
    • WO2012018188A3
    • 2012-05-03
    • PCT/KR2011005432
    • 2011-07-22
    • RADTEK CO LTDKIM KWANG HYUNCHA MYUNG AE
    • KIM KWANG HYUNCHA MYUNG AE
    • G01N23/04G01T1/36
    • G01N23/087
    • The present invention relates to an X-ray imaging device using dual energy X-ray absorptiometry, and more specifically, to an X-ray imaging device using dual energy X-ray absorptiometry, wherein: X-rays having a broadband energy spectrum, which are generated from an X-ray source, pass through one pair of filters connected in parallel such that the X-rays are respectively separated into low-level X-ray beams having a low-level energy spectrum and high-level X-ray beams having a high-level energy spectrum, thereby scanning the separated beams on a subject; and the low-level X-ray beams and the high-level X-ray beams which have been separated from each other and passed through the subject are respectively detected in an independent manner through one pair of image detectors comprised in a parallel structure, whereby high-quality X-ray images having high contrast are obtained to improve the capability of identifying the constituent elements of the subject. According to the present invention, the X-ray imaging device using the dual energy X-ray absorptiometry comprises: an X-ray source which emits X-ray beams; X-ray filters which are comprised in the part from which the X-ray beams discharged from said X-ray source are emitted, wherein a first filter which selectively passes only low-level X-ray beams having a low-level energy spectrum among the X-ray beams discharged from said X-ray source is connected in parallel with a second filter which selectively passes only high-level X-ray beams having a high-level energy spectrum among the X-ray beams discharged from said X-ray source; a collimator which is comprised on the rear side of said X-ray filters, and determines the shapes and the progress directions of the low-level X-ray beams and the high-level X-ray beams which have passed through said X-ray filters; and one pair of image detectors which are spaced apart from each other at certain intervals and are comprised on the rear side of said collimator, and are configured in parallel to detect each of said low-level X-ray beams and the high-level X-ray beams.
    • 本发明涉及一种使用双能量X射线吸收测定法的X射线成像装置,更具体地涉及一种使用双能X射线吸收测定法的X射线成像装置,其中:具有宽带能谱的X射线 从X射线源产生,通过并联连接的一对滤波器,使得X射线分别被分离成具有低能级谱的低级X射线束和高级X射线束 具有高能级的光谱,从而扫描对象上的分离的光束; 并且通过包括在平行结构中的一对图像检测器以独立的方式分别检测彼此分离并通过对象的低电平X射线束和高电平X射线束,由此 获得具有高对比度的高质量X射线图像以提高识别对象构成元素的能力。 根据本发明,使用双能量X射线吸收测定法的X射线成像装置包括:发射X射线束的X射线源; 包括在从所述X射线源发射的X射线束从其中发射的部分中包括的X射线滤波器,其中,第一滤波器选择性地仅通过具有低能级谱的低能级X射线束 从所述X射线源发射的X射线束与第二滤波器并联连接,所述第二滤波器仅选择性地仅通过从所述X射线射出的X射线束中具有高能级谱的高级X射线束 资源; 包括在所述X射线滤波器的后侧上的准直器,并且确定已经通过所述X射线的低水平X射线射束和高水平X射线射束的形状和前进方向 过滤器; 以及一对图像检测器,它们以一定的间隔彼此间隔开并构成在所述准直器的后侧上,并且被配置为并行地检测每个所述低电平X射线束和高电平X 射线束。