使每个连续的光电倍增管电极的电压都比它前面一个电极的电压更高,这样电子就得到加速。
Electrons are accelerated by making the voltage of each successive dynode of the tube more positive than the previous one.
做到这一点最容易的方法是给整个光电倍增管的两端加上一个电压,然后从一个分压器的各个抽头取得供给各个倍增管电极的电压,如图4 - 13所示。
The easiest way to accomplish this is to apply a potential across the entire tube and tap the dynode voltages off a voltage divider, as shown in Figure 4-13.
皮安计在最后一个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个倍增管电极的电流。
The picoammeter reads the current at the last dynode, which is equal to the anode current minus the current flowing to the previous dynode.
介绍了飞秒激光加工光电倍增管电极,修复光刻掩膜,诱导白炽灯丝阵列微孔等一些工业应用。
Some industrial applications including micromachining dynodes of photomultipliers, repairing photomask of lithography, fabricating array micro-holes in incandescent filaments, etc. are introduced.
通过对该模型的分析表明:ccm单元内电极间的间隙越小,电荷倍增率越大。
The analysis of this model shows that if the interelectrode gap length in the CCM elements decreases, the rate of the charge multiplication increases.
这些光电子通过倍增器电极时由于次级电子发射而倍增,然后被阳极收集成为一个输出脉冲。
These photoelectrons are multiplied by secondary electron emission through the dynodes and then collected by the anode as an output pulse.
实验表明,不同工作方式下电极呈现不同的响应,对于可逆氧化还原物质,当电极在产生— 收集方式时,电流成倍增加,达到稳态电流时间大大缩短。
They are of analytical advantages for reversible redox species. In generation-collection mode, steady state currents can be obtained at both electrodes with very short transient time.
实验表明,不同工作方式下电极呈现不同的响应,对于可逆氧化还原物质,当电极在产生— 收集方式时,电流成倍增加,达到稳态电流时间大大缩短。
They are of analytical advantages for reversible redox species. In generation-collection mode, steady state currents can be obtained at both electrodes with very short transient time.
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