9MeV电子直线加速器X射线测量

 高能工业CT采用9MeV电子加速器产生轫致辐射，利用高能X射线能够有效地穿透物质以及同物质对射线吸收和散射不同这一原理来检查物体内部缺陷或内部结构。加速器电子束的焦点、X射线的最高能量、X射线剂量及均匀性与工业CT成像的质量和速度密切相关；对探测器的电子线路部分进行的X射线屏蔽关系到探测器的使用寿命。X射线测量结果表明，所用9MeV电子直线加速器满足高能工业CT检测的要求。

X-ray dosimetry of 9MeV LINAC

Industrial CT adopts electron accelerator to produce the high energy X-ray bremsstrahlung , and makes use of the principle of different absorption coefficient and scattering coefficient when the X-ray cuts through different materials to check the internal blemish or internal structure of the material. The quantity and the speed of creating image of the industrial CT closely relate to the accelerator's focus, the highest X-ray energy, X rays dose and dose uniformity. Protecting the electronics circuit of the detector against X-ray relate to the detector's service life. The X rays measuring results given in this article show that the 9MeV LINAC can satisfie the requirements for checking the material structure and blemish by the high energy industrial CT.