Long-distance correlations in TCABR biasing experiments
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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| Data(s) |
04/11/2013
04/11/2013
2012
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| Resumo |
Long-distance correlations (LDCs) of plasma potential fluctuations in the plasma edge have been investigated in the TCABR tokamak in the regime of edge biasing H-mode using an array of multi-pin Langmuir probes. This activity was carried out as part of the scientific programme of the 4th IAEA Joint Experiment (2009). The experimental data confirm the effect of amplification of LDCs in potential fluctuations during biasing recently observed in stellarators and tokamaks. For long toroidal distances between probes, the cross-spectrum is concentrated at low frequencies f < 60 kHz with peaks at f < 5 kHz, f = 13-15 kHz and f similar to 40 kHz and low wave numbers with a maximum at k = 0. The effects of MHD activity on the LDCs in potential fluctuation are investigated. FINEP FINEP FAPESP FAPESP IAEA (International Atomic Energy Agency) IAEA (International Atomic Energy Agency) National Fusion Network National Fusion Network |
| Identificador |
NUCLEAR FUSION, VIENNA, v. 52, n. 6, supl. 1, Part 2, pp. 110-115, JUN, 2012 0029-5515 http://www.producao.usp.br/handle/BDPI/37849 10.1088/0029-5515/52/6/063004 |
| Idioma(s) |
eng |
| Publicador |
INT ATOMIC ENERGY AGENCY VIENNA |
| Relação |
NUCLEAR FUSION |
| Direitos |
restrictedAccess Copyright INT ATOMIC ENERGY AGENCY |
| Palavras-Chave | #PLASMA #EDGE #TOKAMAK #TURBULENCE #ELECTRODE #PHYSICS, FLUIDS & PLASMAS #PHYSICS, NUCLEAR |
| Tipo |
article original article publishedVersion |
