Edge plasma behavior in the GAMMA 10 tandem mirror based on gas puff imaging experiments with a high-speed camera
Detailed results of edge plasma and neutral particle behavior are described in the gas puff imaging experiments performed in the GAMMA 10 tandem mirror for the first time. Visible imaging measurement by using a high-speed camera (Ultima-SE, Photron Inc.) was recently performed in the central-cell mi...
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| Veröffentlicht in: | Journal of nuclear materials 2007-06, Vol.363-365, p.616-621 |
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| container_volume | 363-365 |
| creator | Nakashima, Y. Nishino, N. Higashizono, Y. Kawano, H. Kobayashi, S. Shoji, M. Kubota, Y. Yoshikawa, M. Islam, M.K. Mishima, Y. Mimura, D. Cho, T. |
| description | Detailed results of edge plasma and neutral particle behavior are described in the gas puff imaging experiments performed in the GAMMA 10 tandem mirror for the first time. Visible imaging measurement by using a high-speed camera (Ultima-SE, Photron Inc.) was recently performed in the central-cell midplane of GAMMA 10. In the standard plasma discharge heated by ICRF wave, a short gas puff of hydrogen (3ms) was carried out and the time evolution of light emission was visualized precisely. It was found that the time evolution of the emission cloud was similar to that of Hα line intensity measured nearby and was localized close to the gas puff port. Asymmetry in diffusion of the emission cloud is observed radial and axial direction of plasma column in the central-cell. This localization phenomenon of neutrals is qualitatively well explained by a fully 3-dimensional simulation using DEGAS neutral particle transport code. |
| doi_str_mv | 10.1016/j.jnucmat.2006.12.053 |
| format | Article |
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Visible imaging measurement by using a high-speed camera (Ultima-SE, Photron Inc.) was recently performed in the central-cell midplane of GAMMA 10. In the standard plasma discharge heated by ICRF wave, a short gas puff of hydrogen (3ms) was carried out and the time evolution of light emission was visualized precisely. It was found that the time evolution of the emission cloud was similar to that of Hα line intensity measured nearby and was localized close to the gas puff port. Asymmetry in diffusion of the emission cloud is observed radial and axial direction of plasma column in the central-cell. 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Visible imaging measurement by using a high-speed camera (Ultima-SE, Photron Inc.) was recently performed in the central-cell midplane of GAMMA 10. In the standard plasma discharge heated by ICRF wave, a short gas puff of hydrogen (3ms) was carried out and the time evolution of light emission was visualized precisely. It was found that the time evolution of the emission cloud was similar to that of Hα line intensity measured nearby and was localized close to the gas puff port. Asymmetry in diffusion of the emission cloud is observed radial and axial direction of plasma column in the central-cell. This localization phenomenon of neutrals is qualitatively well explained by a fully 3-dimensional simulation using DEGAS neutral particle transport code.</description><subject>Applied sciences</subject><subject>Controled nuclear fusion plants</subject><subject>DEGAS</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Exact sciences and technology</subject><subject>GAMMA 10</subject><subject>Installations for energy generation and conversion: thermal and electrical energy</subject><subject>Neutrals</subject><subject>Tandem mirror</subject><subject>Visible imaging</subject><issn>0022-3115</issn><issn>1873-4820</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNqNkU1v1DAQhiNEJZbCT0DyBW4JM06c2Ce0qkqL1IoLPVsTZ5J4la_a2QL_vql2JY7lNId5nnmleZPkE0KGgOXXQ3aYjm6kNZMAZYYyA5W_SXaoqzwttIS3yQ5AyjRHVO-S9zEeAEAZULvk8brpWCwDxZFEzT09-TkIP4m1Z3Gzv7_fCwSx0tTwKEYfwratKXIj5kl0FMVybFvhR-r81An-s3DwI09rFL_92gsSve_6NC68GY5GDvQhuWhpiPzxPC-Th-_Xv65u07ufNz-u9nepK3K5poqck40qC6VaBFUj6KZURiksdW3ypq7q0jldGjS1LCgnIzUVFQFunqkpv0y-nO4uYX48clzt6KPjYaCJ52O00phSF4j_A6oCK3gdBJmrqtAbqE6gC3OMgVu7bF-h8Nci2JfK7MGeK7MvlVmUdqts8z6fAyg6GtpAk_Pxn6wNYIFy476dON7-9-Q52Og8T44bH9ittpn9K0nPfkCt1Q</recordid><startdate>20070615</startdate><enddate>20070615</enddate><creator>Nakashima, Y.</creator><creator>Nishino, N.</creator><creator>Higashizono, Y.</creator><creator>Kawano, H.</creator><creator>Kobayashi, S.</creator><creator>Shoji, M.</creator><creator>Kubota, Y.</creator><creator>Yoshikawa, M.</creator><creator>Islam, M.K.</creator><creator>Mishima, Y.</creator><creator>Mimura, D.</creator><creator>Cho, T.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>L7M</scope><scope>7SR</scope><scope>8BQ</scope><scope>JG9</scope></search><sort><creationdate>20070615</creationdate><title>Edge plasma behavior in the GAMMA 10 tandem mirror based on gas puff imaging experiments with a high-speed camera</title><author>Nakashima, Y. ; Nishino, N. ; Higashizono, Y. ; Kawano, H. ; Kobayashi, S. ; Shoji, M. ; Kubota, Y. ; Yoshikawa, M. ; Islam, M.K. ; Mishima, Y. ; Mimura, D. ; Cho, T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c432t-5acc2d56455f105b108d65955168b93db7b6cc86919b24a3a928a47a01cc29ba3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Applied sciences</topic><topic>Controled nuclear fusion plants</topic><topic>DEGAS</topic><topic>Energy</topic><topic>Energy. 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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Applied sciences Controled nuclear fusion plants DEGAS Energy Energy. Thermal use of fuels Exact sciences and technology GAMMA 10 Installations for energy generation and conversion: thermal and electrical energy Neutrals Tandem mirror Visible imaging |
| title | Edge plasma behavior in the GAMMA 10 tandem mirror based on gas puff imaging experiments with a high-speed camera |
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