Gamma scanning and neutron backscatter techniques , which are widely used in petrochemical plants , are briefly introduced 摘要对射线扫描技术和中子背散射技术的基本原理及其在石油化工装置中的主要应用进行了简要介绍。
Synthetically evaluate the latest application case of compton back - scattering according to the papers at home and aboard . describe the concept and the application theory of compton back - scattering in detail . 2 针对墙体检测这个实际问题，在必要的理论分析计算基础上，提出了康普顿背散射成像仪的总体设计方案。
The substructure near the damage position was studied by ebsp , then vonbined with the relationship among substructure grain boundary sliding grain size and material deformation compatibility the mechanics of creep damage was discussed 使用电子背散射衍射技术研究了不同损伤位置附近的亚结构形成情况，结合亚结构、晶界滑移、晶粒尺寸与材料变形协调性等材料变形特点，对蠕变损伤机理进行了探讨。
Recently the research of compton back - scattering in the world is belonged to high energy ct . the device is very big , much heavy , is n ' t suitable to the portable use . in the same time , up to now there is n ' t a complete application theory of compton back - scattering 而目前世界上对康普顿背散射的应用研究基本上限于高能ct ，装置的体积大、重量重，无法应用于需要便携式的场合；同时康普顿背散射技术的应用尚缺乏成熟的理论指导。
Some numerical results presented in this paper indicate the effect of symmetric correction is close to transmitted correction when imaging for object surface and non - thick and non - dense objects , however , the former supports back scattering imaging which is not supported by the latter 计算机仿真的结果表明，在对物体表面或密度较低的物体进行成像的情况下，对称校正的效果接近于透射校正，但它可以用于背散射成像，这是透射校正所无法实现的。
According to the principle of a new scanning electron microscope and the mechanism of the interaction between electron beam and solid target , the trajectories of an incident electron in a sample are simulated , a simulation program is compiled using the monte carlo method , and the backscattering coefficients corresponding to different parameters of the sem are obtained 摘要根据新型分析扫描电子显微镜的工作原理及载能电子束和固体相互作用原理，利用蒙特卡罗方法模拟入射电子和靶物质的相互作用过程，编制了蒙特卡罗模拟计算程序，获得了对应不同电镜工作参数的入射电子背散射率。
According to the application theory of compton back - scattering that the writer had researched , he developed and produced its portable application devices successfully . after the experiment and on - the - spot application , its efficiency is as good as even better than the design indexes . it could be widely used in the areas such as the engineering , the military , the police and the customs 7 .研制成功了具有自主知识产权的便携式康普顿背散射成像仪，经实验及现场试用，其性能达到设计目标的要求，该仪器在工程、军事、公安、海关等领域中有较广阔的应用前景。
