Temperature and density measurements in an iodine RF-CCP plasma with emission and absorption spectroscopy
| Autor: | Marmuse, Florian, Drag, Cyril, Booth, Jean-Paul, Aanesland, Ane |
|---|---|
| Přispěvatelé: | Laboratoire de Physique des Plasmas (LPP), Université Paris-Saclay-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-École polytechnique (X)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Laboratoire de physique des gaz et des plasmas (LPGP), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | ESCAMPIG XXIV ESCAMPIG XXIV, Jul 2018, Glasgow, Scotland, United Kingdom. 2018 |
| Popis: | International audience; Iodine is a promising alternative to the expensive Xenon as propellant for electric propulsion devices. Aiming for dedicated optical diagnostics for ion thrusters fueled by iodine, a closed iodine cell (25cm x 3cm quartz cylinder, with a tube for temperature control) is connected to a 13.56 MHz RF generator. The resulting capacitively-coupled plasma is studied by emission and absorption spectroscopy. Absorption spectroscopy is used to measure saturation intensities, temperatures, and densities. Two lasers are used: a Ti-Sa cw laser to study transitions within excited states and a laser diode to study the fundamental one. The resulting I temperature and density are to be compared to global models. The experiment is to be reproduced in an ICP plasmas: at same but better controlled pressure; and at lower pressure with cavity ring-down spectroscopy. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|