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

加到每个光电倍增电极上电压PMT设计，由每个型号来确。

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

皮安计在最后一个倍增电极处读取电流，此电流等阳极电流减去流过前一个倍增电极电流。