不久前发现,当在大气压力下的工作气体中含有大量猝灭性气体时(例如占一半或更多),在中心电场的作用下会出现一种新的放电方式,这就是自猝灭流光(SQS)放电。在这种情况下,临界雪崩中因离子复合所产生的光子的自由程很短,在雪崩产生的电偶极子的电场作用下雪崩区不会像盖革放电那样沿着阳极丝漫延,而是沿着垂直于阳极丝方向发展,这就产生定向流光。由于较长的正离子柱会产生屏蔽作用,而且随着与 Not long ago it was found that when the working gas at atmospheric pressure contains a large amount of quenching gas (for example, half or more), a new type of discharge occurs under the effect of a central electric field, which is self quenching streamer (SQS) discharge. In this case, the free path of the photons due to ion recombination in the critical avalanche is very short, and the avalanche zone does not diffuse along the anode wire as in the case of Geiger discharge under the electric field of the electric dipole generated by the avalanche Is developed along the direction perpendicular to the anode wire, which produces directional streamer. As a longer positive ion column will have a shielding effect, and with and