Design and validation of the ball-pen probe for measurements in a low-temperature magnetized plasma
| العنوان: | Design and validation of the ball-pen probe for measurements in a low-temperature magnetized plasma |
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| المؤلفون: | Jordan Cavalier, Gerard Bonhomme, Nicolas Lemoine, Stéphane Heuraux, Guillaume Bousselin, J. F. Pautex |
| المساهمون: | Institut Jean Lamour (IJL), Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), SNECMA Vernon [Vernon], Safran Group |
| المصدر: | Review of Scientific Instruments Review of Scientific Instruments, American Institute of Physics, 2013, 84 (1), ⟨10.1063/1.4775491⟩ |
| بيانات النشر: | HAL CCSD, 2013. |
| سنة النشر: | 2013 |
| مصطلحات موضوعية: | 010302 applied physics, Dense plasma focus, Materials science, genetic structures, Context (language use), Plasma, Electron, 01 natural sciences, 010305 fluids & plasmas, law.invention, law, Physics::Plasma Physics, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], 0103 physical sciences, Physics::Space Physics, Electron temperature, Plasma diagnostics, Ball-pen probe, Atomic physics, Inductively coupled plasma, Instrumentation, human activities |
| الوصف: | Équipe 107 : Physique des plasmas chauds; International audience; Ball-pen probes have been used in fusion devices for direct measurements of the plasma potential. Their application in low-temperature magnetized plasma devices is still subject to studies. In this context, a ball-pen probe has been recently implemented on the linear plasma device Mirabelle. Produced by a thermionic discharge, the plasma is characterized by a low electron temperature and a low density. Plasma confinement is provided by an axial magnetic field that goes up to 100 mT. The principle of the ball-pen probe is to adjust the saturation current ratio to 1 by reducing the electron current contribution. In that case, the floating potential of the probe is close to the plasma potential. A thorough study of the ball-pen probe operation is performed for different designs of the probe over a large set of plasma conditions. Comparisons between ball-pen, Langmuir, and emissive probes are conducted in the same plasma conditions. The ball-pen probe is successfully measuring the plasma potential in these specific plasma conditions only if an adapted electronics and an adapted probe size to the plasma characteristic lengths (lambda(D), rho(ce)) are used. |
| اللغة: | English |
| تدمد: | 0034-6748 1089-7623 |
| DOI: | 10.1063/1.4775491⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0a31e63e1f4ff4366c76484472fc6f8 https://hal.archives-ouvertes.fr/hal-01287082 |
| رقم الانضمام: | edsair.doi.dedup.....e0a31e63e1f4ff4366c76484472fc6f8 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 00346748 10897623 |
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| DOI: | 10.1063/1.4775491⟩ |