In electronic detectors such as photomultipliers and television tubes, noise manifests itself as random fluctuations in the output current . 对于光电倍增管,电视摄像管之类的电子探测器,噪声则表现为输出电流的随机起伏。
The limitations of this scheme became quite apparent with the introduction of detectors such as the plumbicon, image orthicon and vidicon . 这个方法的局限性在引进诸如氧化铅光导管摄像管,超正析象和光导摄像管之类的探测器之后变得很明显。
Radiation image pickup tube 辐射图像摄像管
Slow scan vidicon 慢扫描光导摄像管
The energy density of the spot was 100 times the typical saturation level of the vidicons 光点的能量密度为光导摄像管典型饱和电平的100倍