Objective To investigate the difference in imaging quality and X ray dose for plain film of lumbar vertebrae and abdomen when using blue screen or green screen.
目的探讨感蓝、感绿不同的屏片体系，在腰椎和腹部平片上形成影像质量及入射剂量的差异。
Purpose To establish a screen film system sensitometric method of X ray scale exposure by changing the distance between focus and film.
目的建立以焦点胶片距离的改变，取得X线阶段曝光的屏片体系感光测定方法。
A method of developing X ray inspector based on scintillation screen and scientific grade CCD camera, which is can be applied to the case of high and low energy X ray imaging testing, is put forward.
提出了利用闪烁屏和科学级CCD相机研制适用于高、低能工业X射线成像检测内视仪的方法。
A digital X-ray system for capturing high quality images by maximizing the collection of emitted light from an intensifying screen in response to X-ray impact.
一种数字X射线系统，用于通过最大化响应于X射线碰撞从增感屏发射的光线的收集，捕获高质量的图像。
Different from the imported conventional one, it is an X-ray screen lens coupled with a brightness intensifier, and is a non-vacuum device.
不同于常用的进口真空型X射线影像增强管，组合新型X射线影像增强器是由X射线屏和亮度增强器经过透镜耦合而成的非真空型组合器件。
It is feasible that to use CCD device and image processing system in measurement of the modulation transfer function (MTF) of X-ray film and luminescent screen.
本文论证了利用CCD测定X射线胶片和增感屏调制传递函数的可行性，并给出了一种适用于CCD测试数据的处理方法。
Some U. s airports will soon begin using what's known as "backscatter X-ray technology" to scream screen passengers.
美国的一些机场很快将开始使用一种所谓的“反向散射X射线技术”对乘客进行检查。
Some U. s airports will soon begin using what's known as "backscatter X-ray technology" to scream screen passengers.
美国的一些机场很快将开始使用一种所谓的“反向散射X射线技术”对乘客进行检查。
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