Thomson scattering diagnostic on the ETE tokamak: status and progress
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| Format: | Artículo científico |
| Sprache: | en |
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Sociedade Brasileira de Física
2004
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| _version_ | 1876473667470229504 |
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| author | L. A. Berni |
| author_facet | L. A. Berni |
| contents | Thomson scattering diagnostic on the ETE tokamak: status and progress L. A. Berni E. Del Bosco R. M. Oliveira M. P. Alonso Física, Astronomía y Matemáticas In order to measure the plasma temperature and density in the spherical tokamak ETE, a one-channel Thomson scattering system was implemented. During the upgrade of capacitor banks and optimization since the beginning of operation, the plasma pulse duration has increased from 1.5 ms up to 12 ms with plasma currentsvarying from 10 kA to 60 kA. During this phase, the electron temperature was increased from 20 eV to 160eV with densities as high as 3.5x1019 m-3. Presently, the Thomson scattering diagnostic is being upgradedbased on the time-delay technique, that consists in using fibers of different lengths to transmit the scattered lightsignals to the same polychromator. This system will allow measurements of electron temperature and densityprofiles with ten spatial points per laser shot and per polychromator. This work describes in details the Thomsonscattering system, presents a selection of results obtained by this system since the initial phase of operation, and shows details of the proposed upgrade of the Thomson scattering system. 2004 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46434812 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.4B Vol.34 |
| format | Artículo científico |
| id | redalyc_46434812 |
| institution | Redalyc |
| language | en |
| publishDate | 2004 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Thomson scattering diagnostic on the ETE tokamak: status and progress L. A. Berni Física, Astronomía y Matemáticas Thomson scattering diagnostic on the ETE tokamak: status and progress L. A. Berni E. Del Bosco R. M. Oliveira M. P. Alonso Física, Astronomía y Matemáticas In order to measure the plasma temperature and density in the spherical tokamak ETE, a one-channel Thomson scattering system was implemented. During the upgrade of capacitor banks and optimization since the beginning of operation, the plasma pulse duration has increased from 1.5 ms up to 12 ms with plasma currentsvarying from 10 kA to 60 kA. During this phase, the electron temperature was increased from 20 eV to 160eV with densities as high as 3.5x1019 m-3. Presently, the Thomson scattering diagnostic is being upgradedbased on the time-delay technique, that consists in using fibers of different lengths to transmit the scattered lightsignals to the same polychromator. This system will allow measurements of electron temperature and densityprofiles with ten spatial points per laser shot and per polychromator. This work describes in details the Thomsonscattering system, presents a selection of results obtained by this system since the initial phase of operation, and shows details of the proposed upgrade of the Thomson scattering system. 2004 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46434812 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.4B Vol.34 |
| title | Thomson scattering diagnostic on the ETE tokamak: status and progress |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=46434812 |