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Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall
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| Zeitschriftentitel: | Contributions to Plasma Physics |
|---|---|
| Personen und Körperschaften: | , , , |
| In: | Contributions to Plasma Physics, 52, 2012, 5-6, S. 478-483 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
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| Schlagwörter: |
| author_facet |
Ueno, M. Ohno, N. Tomita, Y. Kawamura, G. Ueno, M. Ohno, N. Tomita, Y. Kawamura, G. |
|---|---|
| author |
Ueno, M. Ohno, N. Tomita, Y. Kawamura, G. |
| spellingShingle |
Ueno, M. Ohno, N. Tomita, Y. Kawamura, G. Contributions to Plasma Physics Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall Condensed Matter Physics |
| author_sort |
ueno, m. |
| spelling |
Ueno, M. Ohno, N. Tomita, Y. Kawamura, G. 0863-1042 1521-3986 Wiley Condensed Matter Physics http://dx.doi.org/10.1002/ctpp.201210036 <jats:title>Abstract</jats:title><jats:p>The conditions for the release of a dust particle from a plasma‐facing wall into a fusion plasma, which is the starting point of the dust transport process, is studied theoretically. The analytical model in this study is for a spherical conducting dust particle on a flat plasma‐facing wall. The forces on the dust particle considered in this model are the electrostatic force, ion friction force and gravitational force. The electrostatic force and ion friction force depend on <jats:italic>T</jats:italic><jats:sub><jats:italic>i</jats:italic></jats:sub>/<jats:italic>T</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub>, where <jats:italic>T</jats:italic><jats:sub><jats:italic>i</jats:italic></jats:sub> and <jats:italic>T</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub> are ion and electron temperatures. A maximum <jats:italic>T</jats:italic><jats:sub><jats:italic>i</jats:italic></jats:sub>/<jats:italic>T</jats:italic><jats:sub>e</jats:sub> is required for the release of a dust particle from the wall. The gravitational force is important in the case of a dust particle on a horizontal wall. In this case, the release condition is determined by the quantity <jats:italic>R</jats:italic><jats:sub><jats:italic>d</jats:italic></jats:sub>/<jats:italic>n</jats:italic><jats:sub><jats:italic>se</jats:italic></jats:sub><jats:italic>T</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub>, as well as the temperature ratio, where <jats:italic>R</jats:italic><jats:sub><jats:italic>d</jats:italic></jats:sub>, <jats:italic>n</jats:italic><jats:sub><jats:italic>se</jats:italic></jats:sub> are the dust radius and the electron density at the sheath entrance, respectively (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)</jats:p> Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall Contributions to Plasma Physics |
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Wiley, 2012 |
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0863-1042 1521-3986 |
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Contributions to Plasma Physics |
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| title |
Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall |
| title_unstemmed |
Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall |
| title_full |
Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall |
| title_fullStr |
Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall |
| title_full_unstemmed |
Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall |
| title_short |
Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall |
| title_sort |
conditions for the release of a metallic dust particle from a plasma‐facing wall |
| topic |
Condensed Matter Physics |
| url |
http://dx.doi.org/10.1002/ctpp.201210036 |
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2012 |
| physical |
478-483 |
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<jats:title>Abstract</jats:title><jats:p>The conditions for the release of a dust particle from a plasma‐facing wall into a fusion plasma, which is the starting point of the dust transport process, is studied theoretically. The analytical model in this study is for a spherical conducting dust particle on a flat plasma‐facing wall. The forces on the dust particle considered in this model are the electrostatic force, ion friction force and gravitational force. The electrostatic force and ion friction force depend on <jats:italic>T</jats:italic><jats:sub><jats:italic>i</jats:italic></jats:sub>/<jats:italic>T</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub>, where <jats:italic>T</jats:italic><jats:sub><jats:italic>i</jats:italic></jats:sub> and <jats:italic>T</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub> are ion and electron temperatures. A maximum <jats:italic>T</jats:italic><jats:sub><jats:italic>i</jats:italic></jats:sub>/<jats:italic>T</jats:italic><jats:sub>e</jats:sub> is required for the release of a dust particle from the wall. The gravitational force is important in the case of a dust particle on a horizontal wall. In this case, the release condition is determined by the quantity <jats:italic>R</jats:italic><jats:sub><jats:italic>d</jats:italic></jats:sub>/<jats:italic>n</jats:italic><jats:sub><jats:italic>se</jats:italic></jats:sub><jats:italic>T</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub>, as well as the temperature ratio, where <jats:italic>R</jats:italic><jats:sub><jats:italic>d</jats:italic></jats:sub>, <jats:italic>n</jats:italic><jats:sub><jats:italic>se</jats:italic></jats:sub> are the dust radius and the electron density at the sheath entrance, respectively (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)</jats:p> |
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| author | Ueno, M., Ohno, N., Tomita, Y., Kawamura, G. |
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| description | <jats:title>Abstract</jats:title><jats:p>The conditions for the release of a dust particle from a plasma‐facing wall into a fusion plasma, which is the starting point of the dust transport process, is studied theoretically. The analytical model in this study is for a spherical conducting dust particle on a flat plasma‐facing wall. The forces on the dust particle considered in this model are the electrostatic force, ion friction force and gravitational force. The electrostatic force and ion friction force depend on <jats:italic>T</jats:italic><jats:sub><jats:italic>i</jats:italic></jats:sub>/<jats:italic>T</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub>, where <jats:italic>T</jats:italic><jats:sub><jats:italic>i</jats:italic></jats:sub> and <jats:italic>T</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub> are ion and electron temperatures. A maximum <jats:italic>T</jats:italic><jats:sub><jats:italic>i</jats:italic></jats:sub>/<jats:italic>T</jats:italic><jats:sub>e</jats:sub> is required for the release of a dust particle from the wall. The gravitational force is important in the case of a dust particle on a horizontal wall. In this case, the release condition is determined by the quantity <jats:italic>R</jats:italic><jats:sub><jats:italic>d</jats:italic></jats:sub>/<jats:italic>n</jats:italic><jats:sub><jats:italic>se</jats:italic></jats:sub><jats:italic>T</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub>, as well as the temperature ratio, where <jats:italic>R</jats:italic><jats:sub><jats:italic>d</jats:italic></jats:sub>, <jats:italic>n</jats:italic><jats:sub><jats:italic>se</jats:italic></jats:sub> are the dust radius and the electron density at the sheath entrance, respectively (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)</jats:p> |
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| imprint | Wiley, 2012 |
| imprint_str_mv | Wiley, 2012 |
| institution | DE-D161, DE-Zi4, DE-Gla1, DE-15, DE-Pl11, DE-Rs1, DE-14, DE-105, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1 |
| issn | 0863-1042, 1521-3986 |
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| language | English |
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| physical | 478-483 |
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| series | Contributions to Plasma Physics |
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| spelling | Ueno, M. Ohno, N. Tomita, Y. Kawamura, G. 0863-1042 1521-3986 Wiley Condensed Matter Physics http://dx.doi.org/10.1002/ctpp.201210036 <jats:title>Abstract</jats:title><jats:p>The conditions for the release of a dust particle from a plasma‐facing wall into a fusion plasma, which is the starting point of the dust transport process, is studied theoretically. The analytical model in this study is for a spherical conducting dust particle on a flat plasma‐facing wall. The forces on the dust particle considered in this model are the electrostatic force, ion friction force and gravitational force. The electrostatic force and ion friction force depend on <jats:italic>T</jats:italic><jats:sub><jats:italic>i</jats:italic></jats:sub>/<jats:italic>T</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub>, where <jats:italic>T</jats:italic><jats:sub><jats:italic>i</jats:italic></jats:sub> and <jats:italic>T</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub> are ion and electron temperatures. A maximum <jats:italic>T</jats:italic><jats:sub><jats:italic>i</jats:italic></jats:sub>/<jats:italic>T</jats:italic><jats:sub>e</jats:sub> is required for the release of a dust particle from the wall. The gravitational force is important in the case of a dust particle on a horizontal wall. In this case, the release condition is determined by the quantity <jats:italic>R</jats:italic><jats:sub><jats:italic>d</jats:italic></jats:sub>/<jats:italic>n</jats:italic><jats:sub><jats:italic>se</jats:italic></jats:sub><jats:italic>T</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub>, as well as the temperature ratio, where <jats:italic>R</jats:italic><jats:sub><jats:italic>d</jats:italic></jats:sub>, <jats:italic>n</jats:italic><jats:sub><jats:italic>se</jats:italic></jats:sub> are the dust radius and the electron density at the sheath entrance, respectively (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)</jats:p> Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall Contributions to Plasma Physics |
| spellingShingle | Ueno, M., Ohno, N., Tomita, Y., Kawamura, G., Contributions to Plasma Physics, Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall, Condensed Matter Physics |
| title | Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall |
| title_full | Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall |
| title_fullStr | Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall |
| title_full_unstemmed | Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall |
| title_short | Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall |
| title_sort | conditions for the release of a metallic dust particle from a plasma‐facing wall |
| title_unstemmed | Conditions for the Release of a Metallic Dust Particle from a Plasma‐Facing Wall |
| topic | Condensed Matter Physics |
| url | http://dx.doi.org/10.1002/ctpp.201210036 |