DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Dongho | ko |
dc.contributor.author | Kim, Jinwoo | ko |
dc.contributor.author | Doh, Guentae | ko |
dc.contributor.author | Shin, Changmin | ko |
dc.contributor.author | Choe, Wonho | ko |
dc.date.accessioned | 2023-01-02T05:01:03Z | - |
dc.date.available | 2023-01-02T05:01:03Z | - |
dc.date.created | 2023-01-02 | - |
dc.date.created | 2023-01-02 | - |
dc.date.issued | 2022-12 | - |
dc.identifier.citation | PLASMA SOURCES SCIENCE & TECHNOLOGY, v.31, no.12 | - |
dc.identifier.issn | 0963-0252 | - |
dc.identifier.uri | http://hdl.handle.net/10203/303879 | - |
dc.description.abstract | Two-dimensional electron temperature and density profiles in the plume region of 300 W-class Hall thruster Ar plasmas were obtained using tomographically reconstructed optical emission intensity profiles combined with a collisional-radiative (CR) model. A total of 1242 lines of sight were used by rotating the thruster to apply inverse Radon transform-based tomographic reconstructions and Abel inversion. The reconstruction accuracy of the developed diagnostic system was evaluated using a priori images derived from plasma pictures, and the reconstruction error was less than 1% in the region of interest, exhibiting higher accuracy than the Abel inversion. From the Ar Hall thruster plasma, more than 12 different two-dimensional profiles of Ar I emission intensity within a spectral range of 600-1000 nm were obtained 6 mm from the exit plane of the thruster. A CR model using 31 allowed transitions at 15 different states from the ground state to the 2p (i) states was incorporated with the tomographically reconstructed emission intensity sets. Consequently, two-dimensional electron temperature and density profiles in the range of 5-18 eV and 2.0 x 10(16)-4.7 x 10(17) m(-3) were obtained, respectively, exhibiting reasonable agreement with the double Langmuir probe measurements. | - |
dc.language | English | - |
dc.publisher | IOP Publishing Ltd | - |
dc.title | Two-dimensional electron temperature and density profiles of Hall thruster plume plasmas using tomographically reconstructed optical emission spectroscopy | - |
dc.type | Article | - |
dc.identifier.wosid | 000897931600001 | - |
dc.identifier.scopusid | 2-s2.0-85144548282 | - |
dc.type.rims | ART | - |
dc.citation.volume | 31 | - |
dc.citation.issue | 12 | - |
dc.citation.publicationname | PLASMA SOURCES SCIENCE & TECHNOLOGY | - |
dc.identifier.doi | 10.1088/1361-6595/aca714 | - |
dc.contributor.localauthor | Choe, Wonho | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | optical tomographic reconstruction | - |
dc.subject.keywordAuthor | inverse Radon transform | - |
dc.subject.keywordAuthor | optical emission spectroscopy | - |
dc.subject.keywordAuthor | cylindrical Hall thruster plasmas | - |
dc.subject.keywordAuthor | collisional-radiative model | - |
dc.subject.keywordPlus | LASER-INDUCED PLASMA | - |
dc.subject.keywordPlus | ARGON | - |
dc.subject.keywordPlus | GAS | - |
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