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自1950年BA规出现以来,随着极高真空技术的发展,在热阴极电离规方面已相继出现了各种测量极高真空的规管。例如:抑制规、分离规、掩埋收集极规、短收集极规、弯注规等。这些规管在原理上都是从减小离子收集极的尺寸或将其引出电离区以降低x射线光电流本底。但是在规管的结构上,除短收集极规以外,变得较为复杂。因此,如何对BA规作出改进,进一步拓宽其下限,是一直为人们所关注的问题。本文的工作就是在诺丁汉改进的
Since the advent of the BA gauge in 1950, with the development of very high vacuum technologies, various regulations for measuring very high vacuum have emerged in the area of hot cathode ionisation gauges. For example: inhibition rules, separation rules, buried Giant Pole, short Gathering rules, bending rules and so on. These regulations are in principle to reduce the size of the ion collector or lead it out of the ionization zone to reduce the x-ray photocurrent background. However, the regulatory structure has become more complicated except for the short polar gauge. Therefore, how to improve the BA regulation and further broaden its lower limit has always been a concern for people. This article’s work is to improve in Nottingham