通过粒子间模拟研究防护罩和吊杆对针式朗缪尔探针的影响

IF 2.1 3区物理与天体物理 Q2 PHYSICS, FLUIDS & PLASMAS

Journal of Plasma Physics Pub Date : 2024-02-21 DOI:10.1017/s0022377823001411

S.M. Brask, S. Marholm, W.J. Miloch, R. Marchand

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引用次数: 0

摘要

我们研究了不同防护罩几何形状对针型朗缪尔探针电流的影响。研究结果基于微粒入胞数值模拟。我们发现，如果保护装置的长度小于 6-8 个 Debye 长度，就会对探针的电流产生显著影响。防护半径不应大于德拜长度，否则也会对电流产生显著影响。不过，由于保护半径通常接近探头半径，因此通常可以满足第二个条件。

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Effects of guard and boom on needle Langmuir probes studied with particle-in-cell simulations

We investigate the effects of different guard geometries on the currents to needle-type Langmuir probes. The results are based on particle-in-cell numerical simulations. We show that if the guard length is less than 6–8 Debye lengths there can be a significant effect on the currents to the probe. A guard radius should not be larger than the Debye length, otherwise it can also significantly affect the currents. However, since guard radii are often close to the probe radius, the second condition is usually satisfied.

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来源期刊

Journal of Plasma Physics 物理-物理：流体与等离子体

CiteScore

3.50

自引率

16.00%

发文量

106

审稿时长

6-12 weeks

期刊介绍： JPP aspires to be the intellectual home of those who think of plasma physics as a fundamental discipline. The journal focuses on publishing research on laboratory plasmas (including magnetically confined and inertial fusion plasmas), space physics and plasma astrophysics that takes advantage of the rapid ongoing progress in instrumentation and computing to advance fundamental understanding of multiscale plasma physics. The Journal welcomes submissions of analytical, numerical, observational and experimental work: both original research and tutorial- or review-style papers, as well as proposals for its Lecture Notes series.