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

加到每个光电电极上的电压决定于PMT的设，由每个子的型号来确定。

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

皮最后一个电极处读取电流，此电流等于阳极电流减去流过前一个电极的电流。