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

加到每个光倍极上的压决定于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.

在最后一个倍极处读取流，此流等于阳极流减去流过前一个倍极的流。