Experimental study on the similarity of gas discharge in low-pressure Argon gaps

IF 1.2 Q3 PHYSICS, MULTIDISCIPLINARY

Papers in Physics Pub Date : 2022-03-08 DOI:10.4279/pip.140004

Prijil Mathew, Sajith T Mathews, Paul Issac, P. Kurian

引用次数: 0

Abstract

Through experiments and theoretical analysis, we investigated the similarity of gas discharge in low-pressure Argon gaps between two plane-parallel electrodes. We found that the breakdown voltages depended not only on gap length and the product of gas pressureand gap length but also on the aspect ratio of the gap, i.e. Ub = f (pd, d/r). When we considered similar discharge gaps, the radius r, gap length d, and gas pressure p fulfilled the conditions of p1 r1 = p2 r2 and p1d1 = p2 d2. In this situation, the reduced field E/p was also constant. The voltage-current characteristic curves of similar gaps were approximately the same, which is a novel experimental result. Comparison of the discharge physical parameters of the scaled-down gap and prototype gap shows that the proportional relations can be derived from the similarity law. Our experimental results provide some instructions on extrapolating two similar gaps and their discharge properties. Application of the similarity law is straightforward when we scale the discharges up or down if they are too small or large.

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低压氩气间隙气体放电相似性的实验研究

通过实验和理论分析，研究了两个平面平行电极间低压氩气隙气体放电的相似性。我们发现击穿电压不仅与间隙长度和气体压力与间隙长度的乘积有关，还与间隙宽高比Ub = f (pd, d/r)有关。当我们考虑相似的放电间隙时，半径r，间隙长度d，气体压力p满足p1 r1 = p2 r2和p1d1 = p2 d2的条件。在这种情况下，简化后的场E/p也是恒定的。相似间隙的电压电流特性曲线基本相同，这是一个新颖的实验结果。将缩小后的间隙与原型间隙的放电物理参数进行比较，可以由相似定律推导出两者的比例关系。我们的实验结果为推断两个相似的间隙及其放电特性提供了一些指导。当我们将排放量放大或缩小(如果它们太小或太大)时，相似性定律的应用是直接的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Papers in Physics PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.90

自引率

0.00%

发文量

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