Analysis of disruptive discharges during density limit experiments on the HT-7 Tokamak
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedade Brasileira de Física
2006
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| _version_ | 1866817135495348224 |
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| author | X. Gao |
| author_facet | X. Gao |
| contents | Analysis of disruptive discharges during density limit experiments on the HT-7 Tokamak X. Gao M. Asif Física, Astronomía y Matemáticas Magneto Mirnov coil Disruptions hydrodynamic Moveable limiter In this work, we discuss the preliminary analysis of some disruptive plasma discharges with a moveablegraphite limiter on the HT-7 tokamak, which has been developed in order to investigate the influence of thehorizontal plasma position on the density limit. What we have observed is that the m=2, MHD componentdominates during almost the whole discharge duration, when the density limit is approached at values of theedge safety factor 3 < q(a) < 3.5. For the poloidal-magnetic-field fluctuations observed at the Mirnov coils,Mirnov-coil analysis shows that the m = 2 mode is unstable, which finally causes disruption. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46436211 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.1B Vol.36 |
| format | Artículo científico |
| id | redalyc_46436211 |
| language | en |
| publishDate | 2006 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Analysis of disruptive discharges during density limit experiments on the HT-7 Tokamak X. Gao Física, Astronomía y Matemáticas Magneto Mirnov coil Disruptions hydrodynamic Moveable limiter Analysis of disruptive discharges during density limit experiments on the HT-7 Tokamak X. Gao M. Asif Física, Astronomía y Matemáticas Magneto Mirnov coil Disruptions hydrodynamic Moveable limiter In this work, we discuss the preliminary analysis of some disruptive plasma discharges with a moveablegraphite limiter on the HT-7 tokamak, which has been developed in order to investigate the influence of thehorizontal plasma position on the density limit. What we have observed is that the m=2, MHD componentdominates during almost the whole discharge duration, when the density limit is approached at values of theedge safety factor 3 < q(a) < 3.5. For the poloidal-magnetic-field fluctuations observed at the Mirnov coils,Mirnov-coil analysis shows that the m = 2 mode is unstable, which finally causes disruption. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46436211 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.1B Vol.36 |
| title | Analysis of disruptive discharges during density limit experiments on the HT-7 Tokamak |
| topic | Física, Astronomía y Matemáticas Magneto Mirnov coil Disruptions hydrodynamic Moveable limiter |
| url | https://www.redalyc.org/articulo.oa?id=46436211 |