dorsal/arxiv
View SchemaExperimental study of the recombination of a drifting low temperature plasma in the divertor simulator Mistral-B
| Authors | Cedric Brault, Alexandre Escarguel, Mohamed Koubiti, Roland Stamm, Thiery Pierre, Kamal Quotb, Didier Guyomarc'H |
|---|---|
| Categories | |
| ArXiv ID | physics/0410219 |
| URL | https://arxiv.org/abs/physics/0410219 |
Abstract
In a new divertor simulator, an ultra-cold (Te<1 eV) high density recombining magnetized laboratory plasma is studied using probes, spectroscopic measurements, and ultra-fast imaging of spontaneous emission. The Mistral-B device consists in a linear high density magnetized plasma column. The ionizing electrons originate from a large cathode array located in the fringing field of the solenoid. The ionizing electrons are focused in a 3 cm diameter hole at the entrance of the solenoid. The typical plasma density on the axis is close to 2.10^18 m-3. The collector is segmented into two plates and a transverse electric field is applied through a potential difference between the plates. The Lorentz force induces the ejection of a very-low temperature plasma jet in the limiter shadow. The characteristic convection time and decay lengths have been obtained with an ultra-fast camera. The study of the atomic physics of the recombining plasma allows to understand the measured decay time and to explain the emission spectra.
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"abstract": "In a new divertor simulator, an ultra-cold (Te\u003c1 eV) high density recombining\nmagnetized laboratory plasma is studied using probes, spectroscopic\nmeasurements, and ultra-fast imaging of spontaneous emission. The Mistral-B\ndevice consists in a linear high density magnetized plasma column. The ionizing\nelectrons originate from a large cathode array located in the fringing field of\nthe solenoid. The ionizing electrons are focused in a 3 cm diameter hole at the\nentrance of the solenoid. The typical plasma density on the axis is close to\n2.10^18 m-3. The collector is segmented into two plates and a transverse\nelectric field is applied through a potential difference between the plates.\nThe Lorentz force induces the ejection of a very-low temperature plasma jet in\nthe limiter shadow. The characteristic convection time and decay lengths have\nbeen obtained with an ultra-fast camera. The study of the atomic physics of the\nrecombining plasma allows to understand the measured decay time and to explain\nthe emission spectra.",
"arxiv_id": "physics/0410219",
"authors": [
"Cedric Brault",
"Alexandre Escarguel",
"Mohamed Koubiti",
"Roland Stamm",
"Thiery Pierre",
"Kamal Quotb",
"Didier Guyomarc\u0027H"
],
"categories": [
"physics.plasm-ph"
],
"title": "Experimental study of the recombination of a drifting low temperature plasma in the divertor simulator Mistral-B",
"url": "https://arxiv.org/abs/physics/0410219"
},
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