The voltages that should be applied to each dynode are a function of PMT design and are specified for each tube type.

加到光电倍增管电极上电压决定于PMT，管子型号来确定。

The picoammeter reads the current at the last dynode, which is equal to the anode current minus the current flowing to the previous dynode.

皮安在最后一倍增管电极处读取电流，此电流等于阳极电流减去流过前一倍增管电极电流。