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【摘要】为了保证诊断X射线设备应用的安全有效,针对三种型号的多参数测量仪,分析了测量过程中可能对半值层测量产生影响的诸多因素,比如X射线管电压、管电流、曝光时间、半值层仪的摆 …
Accuracy of HVL measurements utilizing solid state detectors for ...
2021年8月10日 · The minimum required half-value layer (HVL) as specified by the Food and Drug Administration (FDA) for radiography and fluoroscopy x-ray tubes is 2.9 millimeters of …
Estimating of radiation output of X-RAY tube using mathematical …
2024年4月1日 · Mathematical equations are used to estimate the radiation output of the X-ray tubes. Failure to consider all the parameters of the X-ray tube will distort the results. kV, mAs, …
MMAL-Net 论文解读 - CSDN博客
2021年12月25日 · MMAL-Net是一种针对细粒度分类的深度学习网络，由AOLM（注意力对象定位模块）和APPM（注意力部分提议模块）构成。 AOLM预测物体位置，APPM寻找关键部分， …
Applicability and repeatability in angiography systems of statistical ...
2018年12月1日 · A Matlab software automatically calculates LCD values in terms of Pixel Value (PV) and contrast threshold (Ct); it also converts PV in mmAl (Fig. 1), providing the LCD …
铝当量的单位是 - 百度知道
2023年4月25日 · 固有滤过一般用铝当量表示单位是mmAl，以铝的厚度表示的衰减当量半价层质量等效滤过的值。 当量是指一定厚度的铝板与其它滤过材料相比，对X射线具有相同的衰减效果 …
Method for determining the half-value layer in computed tomography ...
2017年12月1日 · We have proposed a method for determining the half-value layers (HVL) in dual-source dual-energy computed tomography (DS-DECT) scans without the need for the X-ray …
Understanding MMAL camera control interactions
2021年6月21日 · To try and improve the quality and consistency of the digitised frames I am trying to understand how the various MMAL camera controls work. Perhaps some of these are …
Normalized mean glandular dose computation from
2013年3月11日 · Mean glandular dose (MGD) is the figure of merit to assess breast dose after a mammographic acquisition. The use of normalized MGD obtained from Monte Carlo …
- 某些结果已被删除