Electron Temperature and Density Distributions in a Divertor Simulation Experimental Module with Gas Injection in GAMMA 10/PDX
| Autor: | K. Oki, M. Sakamoto, Y. Nakashima, M. Yoshikawa, R. Nohara, K. Nojiri, A. Terakado, M. Mizuguchi, K. Ichimura, H. Takeda, M. Iwamoto, Y. Hosoda, K. Shimizu, J. Kohagura, T. Imai, M. Ichimura |
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| Rok vydání: | 2015 |
| Předmět: |
Nuclear and High Energy Physics
Materials science Radiative cooling Plasma parameters Mechanical Engineering Divertor Ion Magnetic field symbols.namesake Nuclear Energy and Engineering Saturation current symbols Langmuir probe Electron temperature General Materials Science Atomic physics Civil and Structural Engineering |
| Zdroj: | Fusion Science and Technology. 68:81-86 |
| ISSN: | 1943-7641 1536-1055 |
| Popis: | In tandem mirror GAMMA 10/PDX, H2 gas has been injected to a divertor simulation experimental module (D-module) for radiation cooling and detachment study. Electron temperature (Te) and density (ne) distributions have been measured by Langmuir probes in the D-module. With increase of H2 gas amount, Te has decreased especially at the V-shaped target plate from 30-40 eV to 3-5 eV. Moreover, ne and ion saturation current Iis have increased at the inlet but decreased at the target and had a steeper distribution toward the corner. These results suggest detachment. The movement of the ionization front to the upstream side with increase of the gas is suggested from the change in the plasma parameters profiles along the magnetic field line. |
| Databáze: | OpenAIRE |
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