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Ion flux maps and helicon source efficiency in the VASIMR VX-100 experiment using a moving Langmuir probe array.

机译：使用移动的Langmuir探针阵列的VASIMR VX-100实验中的离子通量图和螺线源效率。

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This research paper describes the design, setup, and application of a moving multi-Langmuir probe array that measured and mapped ion flux and plasma source efficiency in a flowing plasma with large (∼1.5 T) external magnetic fields in the VASIMR (Variable Specific Impulse Magnetoplasma Rocket) VX-100 experiment. The probe array was swung through an argon plasma revealing a detailed 2-dimensional cross section. Neutral input flow and probe collector bias voltage were scanned from pulse to pulse in an effort to find optimal settings. Secondary electron emission was found to be an important factor that artificially enhanced the measured flux at large negative bias voltages. The most accurate bias voltages were found to be around -20 volts where the flux enhancing effects were minimized. Variations of this probe will be used in more advanced plasma rocket study.

机译：本研究论文描述了移动多朗缪尔探针阵列的设计，设置和应用，该探针阵列在VASIMR（可变比脉冲）中具有大（〜1.5 T）外部磁场的流动等离子体中测量和映射了离子通量和等离子体源效率磁浆火箭）VX-100实验。将探针阵列摇动通过氩气等离子体，露出详细的二维横截面。逐个脉冲扫描中性输入流量和探头集电极偏置电压，以寻求最佳设置。发现二次电子发射是在大的负偏置电压下人为提高测量通量的重要因素。发现最准确的偏置电压约为-20伏，其中磁通增强效果最小。这种探针的变体将用于更高级的等离子火箭研究中。

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作者
Olsen, Christopher Scott.;
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作者单位

Rice University.;

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授予单位 Rice University.;
学科 Engineering Aerospace.;Physics Fluid and Plasma.
学位 M.S.
年度 2009
页码 146 p.
总页数 146
原文格式 PDF
正文语种 eng
中图分类航空、航天技术的研究与探索;等离子体物理学;
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入库时间 2022-08-17 11:38:27

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专利

1. Comparing Experiments with Modeling to Optimize Light Ion Helicon Plasma Sources for VASIMR [J] . M. D. Carter, F. W. Baity, G. C. Barber, Fusion Science and Technology . 2003,第1T期

机译：比较实验与建模以优化VASIMR的轻离子螺旋等离子体源
2. Ion Fluxes and Neutral Gas lonization Efficiency of the 100-kW Light-Ion Helicon Plasma Source Concept for the Material Plasma Exposure experiment [J] . Caneses J. F., Piotrowicz P. A., Biewer T. M., Fusion Science and Technology . 2019,第7期

机译：用于材料等离子体暴露实验的100 kW轻离子螺旋等离子体源概念的离子通量和中性气体电离效率
3. Negative ion characterization in a helicon plasma source for fusion neutral beams by cavity ring-down spectroscopy and Langmuir probe laser photodetachment [J] . R. Agnello, S. Bechu, I. Furno, Nuclear fusion . 2020,第2期

机译：腔环衰荡光谱法和Langmuir探针激光光解法在聚变中性束螺线管等离子体源中表征负离子
4. Nitrogen dissociation degree in a helicon plasma source inferred from microwave interferometry and langmuir probe cross measurements [C] . Spencer M., Biloiu C., Scime E. IEEE International Conference on Plasma Science . 2006

机译：从微波干涉测量和Langmuir探针交叉测量推断出直升离子等离子体源中的氮解离程度
5. An experimental study of the non-ideal effects of the radial Ohm's law in the Flowing Magnetized Plasma experiment and the application of the heavy ion beam probe technique on a helicon plasma. [D] . Si, Jiahe. 2006

机译：在流动磁化等离子体实验中径向欧姆定律的非理想效应的实验研究，以及重离子束探针技术在螺旋等离子体上的应用。
6. Analysis of internal (n-1)mer deletion sequences in synthetic oligodeoxyribonucleotides by hybridization to an immobilized probe array. [O] . D Chen, Z Yan, D L Cole, 1999

机译：通过与固定探针阵列杂交分析合成寡聚脱氧核糖核苷酸中的内部（n-1）mer缺失序列。
7. Ion flux maps and helicon source efficiency in the VASIMR VX-100 experiment using a moving Langmuir probe array [O] . Olsen Christopher Scott 2009

机译：使用移动Langmuir探针阵列的VASIMR VX-100实验中的离子通量图和螺线源效率
8. Study of the Helicon Source Operation in the Variable Specific Impulse Magnetoplasma Rocket (VASIMR) Experiment [R] . Molvig, Kim, Batishchev, Oleg 2003

机译：变特定脉冲磁质火箭（VasImR）实验中Helicon源操作的研究

Ion flux maps and helicon source efficiency in the VASIMR VX-100 experiment using a moving Langmuir probe array.

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