We have studied and constructed a new detector by gas discharge and external quenching circuits to measure the low energy photoelectron emitted form the specimen surface.
研制了一种新型的探测器，利用气体放电和外部电路猝灭的方法测定样品表面发射的低能光电子。
2
The electron capture detector(ECD) and the external standard method were used.
及电子捕获检测器（ECD），外标法计算含量。
3
A SYNC output and phase detector are included to simplify designs requiring tracking to an external signal source.