IQI

Male and 2 female IQI germfree mice purchased from Japan central institute of laboratory animal were reared in the isolators under the condition of temperature 22-24 ℃, humidity 58%-60%.

从日本中央实验动物研究所购买的2对IQI无菌小鼠饲养在无菌隔离器中，饲养温度为22～24℃，相对湿度为58～60%，并成功地繁殖了214只无菌小鼠。

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The experimental research for weld-plate between methods of convention and equivalent energetic-spectrum is made. The result indicates that the visible effect of image is improved and the contrast sensitivity increases 20~ 40 gray level on image quality indicator ( IQI);

与常规校正法对焊接板进行实验对比研究结果表明，等效能谱法增强了成像的可视化效果，通过像质计灵敏度实验，其对比度灵敏度提高了20~40灰度级；

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The ability of the radiographic procedure to demonstrate certain IQI sensitivity based on the perception of the IQI holes or wires.

基于对丝型像质计或线型像质计的感知程度，证明射线本身对某种像质计的敏感度。

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The X-ray attenuation property of solid rocket motor chamber material was described and the testing method for X-ray attenuation coefficient was given. The type, material and location of image quality indicator ( IQI) for radiographic examination of solid rocket motor chamber were proposed.

阐明固体火箭发动机燃烧室材料的X射线吸收特性，给出材料线吸收系数的切向与径向测试方法，提出固体火箭发动机燃烧室X射线探伤像质计类型、材料和放置的建议。

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It was considered that the establishment of radiographic IQI standard for solid rocket motor chamber was necessary.

认识到建立固体火箭发动机燃烧室X射线探伤像质计标准势在必行。

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It was suggested that Al Image Quality Indicator ( IQI) would be used to evaluate the quality of X-ray radiographs of C/ SiC.

提出采用Al像质计对C／SiC复合材料的X射线照相检测质量进行评估。

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Image Quality Indicators ( IQI) for Thermal Neutron Radiography and It ′ s Application

中子照相像质指示器及其使用

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