Secondly, used a preamplifier to pre-amplify the integrated signal of induced charge detected by the CZT surface pixel arrays nuclearradiationdetector.
设计带通滤波电路和比例放大电路，对前置放大电路的输出信号进行滤波、降噪和放大。
2
The minimum detectable limit of the nuclearradiationdetector array is an important technic criteria to judge whether the detector satisfies the detecting requirements or not.