Particle in cell calculation of plasma force on a small grain in a non-uniform collisional sheath
The plasma force on grains of specified charge and height in a collisional DC plasma sheath is calculated using the multidimensional particle in cell code COPTIC. The background ion velocity distribution functions for the unperturbed sheath vary substantially with collisionality. The grain force is...
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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IOP Publishing
2015
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| Online Access: | http://hdl.handle.net/1721.1/95827 |
| _version_ | 1826191042935783424 |
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| author | Hutchinson, Ian Horner |
| author2 | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Hutchinson, Ian Horner |
| author_sort | Hutchinson, Ian Horner |
| collection | MIT |
| description | The plasma force on grains of specified charge and height in a collisional DC plasma sheath is calculated using the multidimensional particle in cell code COPTIC. The background ion velocity distribution functions for the unperturbed sheath vary substantially with collisionality. The grain force is found to agree quite well with a combination of background electric-field force plus ion drag force. However, the drag force must take account of the non-Maxwellian (and spatially varying) ion distribution function, and the collisional drag enhancement. It is shown how to translate the dimensionless results into practical equilibrium including other forces such as gravity. |
| first_indexed | 2024-09-23T08:49:14Z |
| format | Article |
| id | mit-1721.1/95827 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:49:14Z |
| publishDate | 2015 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/958272023-02-26T03:29:39Z Particle in cell calculation of plasma force on a small grain in a non-uniform collisional sheath Hutchinson, Ian Horner Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Massachusetts Institute of Technology. Plasma Science and Fusion Center Hutchinson, Ian H. The plasma force on grains of specified charge and height in a collisional DC plasma sheath is calculated using the multidimensional particle in cell code COPTIC. The background ion velocity distribution functions for the unperturbed sheath vary substantially with collisionality. The grain force is found to agree quite well with a combination of background electric-field force plus ion drag force. However, the drag force must take account of the non-Maxwellian (and spatially varying) ion distribution function, and the collisional drag enhancement. It is shown how to translate the dimensionless results into practical equilibrium including other forces such as gravity. United States. Dept. of Energy (National Science Foundation (U.S.). Grant DE-FG02-06ER54982) 2015-03-04T20:43:35Z 2015-03-04T20:43:35Z 2013-10 2013-09 Article http://purl.org/eprint/type/JournalArticle 0741-3335 1361-6587 http://hdl.handle.net/1721.1/95827 Hutchinson, I H. “Particle in Cell Calculation of Plasma Force on a Small Grain in a Non-Uniform Collisional Sheath.” Plasma Physics and Controlled Fusion 55, no. 11 (October 18, 2013): 115014. en_US http://dx.doi.org/10.1088/0741-3335/55/11/115014 Plasma Physics and Controlled Fusion Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf IOP Publishing arXiv |
| spellingShingle | Hutchinson, Ian Horner Particle in cell calculation of plasma force on a small grain in a non-uniform collisional sheath |
| title | Particle in cell calculation of plasma force on a small grain in a non-uniform collisional sheath |
| title_full | Particle in cell calculation of plasma force on a small grain in a non-uniform collisional sheath |
| title_fullStr | Particle in cell calculation of plasma force on a small grain in a non-uniform collisional sheath |
| title_full_unstemmed | Particle in cell calculation of plasma force on a small grain in a non-uniform collisional sheath |
| title_short | Particle in cell calculation of plasma force on a small grain in a non-uniform collisional sheath |
| title_sort | particle in cell calculation of plasma force on a small grain in a non uniform collisional sheath |
| url | http://hdl.handle.net/1721.1/95827 |
| work_keys_str_mv | AT hutchinsonianhorner particleincellcalculationofplasmaforceonasmallgraininanonuniformcollisionalsheath |