| 利用CCD测定X射线增感屏的调制传递函数 |
| |
| 引用本文： | 王桂英,曹厚德.利用CCD测定X射线增感屏的调制传递函数[J].计量学报,1997,18(3):187-191. |
| |
| 作者姓名： | 王桂英 曹厚德 |
| |
| 作者单位： | 中国科学院上海光学精密机械研究所，上海市静安区中心医院 |
| |
| 摘 要： | 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和可行性，并给出了一种适用于ＣＣＤ测试数据的处理方法，对于同一种Ｘ射线胶片增感屏，分别给出了测微光密度计和ＣＣＤ两种测量数据及其误差分析，并用对几种不同增感屏和胶片性能做了评价，从实际应用中指出复ＣＣＤ探头测量调制传递函数的优越性。
|
| 关 键 词： | X射线 增感屏 CCD探测 APD探则 调制传递函数 |
Modulation Transfer Function Measurement for X-ray Film and Luminescent Screen Using CCD and Image Processing System |
| |
| Wang Guiying,Huang Liuhong,Shen Jianguo.Modulation Transfer Function Measurement for X-ray Film and Luminescent Screen Using CCD and Image Processing System[J].Acta Metrologica Sinica,1997,18(3):187-191. |
| |
| Authors: | Wang Guiying Huang Liuhong Shen Jianguo |
| |
| Abstract: | 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. A method for processing data captured by CCD is given also. At the same time, the data measured by CCD and APD respectively and their errors are given. For a few kinds of luminescent screens and film, the comparison and evaluation are completed. From the practice of MTF measurement, the advantages of using CCD have been given. |
| |
| Keywords: | X-ray Illuminating screen CCD detecting APD detecting MTF |
| 本文献已被 CNKI 维普 等数据库收录！ |
