Long-distance correlations in TCABR biasing experiments

Yu K. Kuznetsov; I. C. Nascimento; C. Silva; H. Figueiredo; Z. O. Guimares-Filho; I. L. Caldas; R. M.O. Galvo; J. H.F. Severo; D. L. Toufen; L. F. Ruchko; A. G. Elfimov; J. I. Elizondo; W. P. De S; O. C. Usuriaga; E. Sanada; A. V. Melnikov; M. P. Gryaznevich; M. Peres Alonso; A. P. Reis; M. MacHida; D. J. Trembach; T. M. Germano; R. Narayanan; M. Ghoranneviss; R. Arvin; S. Mohammadi; S. R.S. Tekieh; F. O. Borges; V. Bellintani; G. P. Canal; P. Duarte; R. M. De Castro; G. Vorobyov; M. Mizintseva; V. E. Moiseenko; F. Do Nascimento; G. Ronchi; L. M.F. Schmutzler

doi:10.1088/0029-5515/52/6/063004

Long-distance correlations in TCABR biasing experiments

Yu K. Kuznetsov, I. C. Nascimento, C. Silva, H. Figueiredo, Z. O. Guimares-Filho, I. L. Caldas, R. M.O. Galvo, J. H.F. Severo, D. L. Toufen, L. F. Ruchko, A. G. Elfimov, J. I. Elizondo, W. P. De S, O. C. Usuriaga, E. Sanada, A. V. Melnikov, M. P. Gryaznevich, M. Peres Alonso, A. P. Reis, M. MacHidaD. J. Trembach, T. M. Germano, R. Narayanan, M. Ghoranneviss, R. Arvin, S. Mohammadi, S. R.S. Tekieh, F. O. Borges, V. Bellintani, G. P. Canal, P. Duarte, R. M. De Castro, G. Vorobyov, M. Mizintseva, V. E. Moiseenko, F. Do Nascimento, G. Ronchi, L. M.F. Schmutzler

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Abstract

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<60kHz with peaks at f<5kHz, f=1315kHz and f40kHz and low wave numbers with a maximum at k=0. The effects of MHD activity on the LDCs in potential fluctuation are investigated.

Original language	English
Article number	063004
Journal	Nuclear Fusion
Volume	52
Issue number	6
DOIs	https://doi.org/10.1088/0029-5515/52/6/063004
State	Published - Jun 2012
Externally published	Yes

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Kuznetsov, Y. K., Nascimento, I. C., Silva, C., Figueiredo, H., Guimares-Filho, Z. O., Caldas, I. L., Galvo, R. M. O., Severo, J. H. F., Toufen, D. L., Ruchko, L. F., Elfimov, A. G., Elizondo, J. I., De S, W. P., Usuriaga, O. C., Sanada, E., Melnikov, A. V., Gryaznevich, M. P., Peres Alonso, M., Reis, A. P., ... Schmutzler, L. M. F. (2012). Long-distance correlations in TCABR biasing experiments. Nuclear Fusion, 52(6), Article 063004. https://doi.org/10.1088/0029-5515/52/6/063004

@article{5891830afdf044348294929ed532efa4,

title = "Long-distance correlations in TCABR biasing experiments",

abstract = "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<60kHz with peaks at f<5kHz, f=1315kHz and f40kHz and low wave numbers with a maximum at k=0. The effects of MHD activity on the LDCs in potential fluctuation are investigated.",

author = "Kuznetsov, {Yu K.} and Nascimento, {I. C.} and C. Silva and H. Figueiredo and Guimares-Filho, {Z. O.} and Caldas, {I. L.} and Galvo, {R. M.O.} and Severo, {J. H.F.} and Toufen, {D. L.} and Ruchko, {L. F.} and Elfimov, {A. G.} and Elizondo, {J. I.} and {De S}, {W. P.} and Usuriaga, {O. C.} and E. Sanada and Melnikov, {A. V.} and Gryaznevich, {M. P.} and {Peres Alonso}, M. and Reis, {A. P.} and M. MacHida and Trembach, {D. J.} and Germano, {T. M.} and R. Narayanan and M. Ghoranneviss and R. Arvin and S. Mohammadi and Tekieh, {S. R.S.} and Borges, {F. O.} and V. Bellintani and Canal, {G. P.} and P. Duarte and {De Castro}, {R. M.} and G. Vorobyov and M. Mizintseva and Moiseenko, {V. E.} and {Do Nascimento}, F. and G. Ronchi and Schmutzler, {L. M.F.}",

year = "2012",

month = jun,

doi = "10.1088/0029-5515/52/6/063004",

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volume = "52",

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Kuznetsov, YK, Nascimento, IC, Silva, C, Figueiredo, H, Guimares-Filho, ZO, Caldas, IL, Galvo, RMO, Severo, JHF, Toufen, DL, Ruchko, LF, Elfimov, AG, Elizondo, JI, De S, WP, Usuriaga, OC, Sanada, E, Melnikov, AV, Gryaznevich, MP, Peres Alonso, M, Reis, AP, MacHida, M, Trembach, DJ, Germano, TM, Narayanan, R, Ghoranneviss, M, Arvin, R, Mohammadi, S, Tekieh, SRS, Borges, FO, Bellintani, V, Canal, GP, Duarte, P, De Castro, RM, Vorobyov, G, Mizintseva, M, Moiseenko, VE, Do Nascimento, F, Ronchi, G & Schmutzler, LMF 2012, 'Long-distance correlations in TCABR biasing experiments', Nuclear Fusion, vol. 52, no. 6, 063004. https://doi.org/10.1088/0029-5515/52/6/063004

TY - JOUR

T1 - Long-distance correlations in TCABR biasing experiments

AU - Kuznetsov, Yu K.

AU - Nascimento, I. C.

AU - Silva, C.

AU - Figueiredo, H.

AU - Guimares-Filho, Z. O.

AU - Caldas, I. L.

AU - Galvo, R. M.O.

AU - Severo, J. H.F.

AU - Toufen, D. L.

AU - Ruchko, L. F.

AU - Elfimov, A. G.

AU - Elizondo, J. I.

AU - De S, W. P.

AU - Usuriaga, O. C.

AU - Sanada, E.

AU - Melnikov, A. V.

AU - Gryaznevich, M. P.

AU - Peres Alonso, M.

AU - Reis, A. P.

AU - MacHida, M.

AU - Trembach, D. J.

AU - Germano, T. M.

AU - Narayanan, R.

AU - Ghoranneviss, M.

AU - Arvin, R.

AU - Mohammadi, S.

AU - Tekieh, S. R.S.

AU - Borges, F. O.

AU - Bellintani, V.

AU - Canal, G. P.

AU - Duarte, P.

AU - De Castro, R. M.

AU - Vorobyov, G.

AU - Mizintseva, M.

AU - Moiseenko, V. E.

AU - Do Nascimento, F.

AU - Ronchi, G.

AU - Schmutzler, L. M.F.

PY - 2012/6

Y1 - 2012/6

N2 - 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<60kHz with peaks at f<5kHz, f=1315kHz and f40kHz and low wave numbers with a maximum at k=0. The effects of MHD activity on the LDCs in potential fluctuation are investigated.

AB - 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<60kHz with peaks at f<5kHz, f=1315kHz and f40kHz and low wave numbers with a maximum at k=0. The effects of MHD activity on the LDCs in potential fluctuation are investigated.

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U2 - 10.1088/0029-5515/52/6/063004

DO - 10.1088/0029-5515/52/6/063004

M3 - Article

AN - SCOPUS:84861171484

SN - 0029-5515

VL - 52

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 6

M1 - 063004

ER -

Long-distance correlations in TCABR biasing experiments

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