Non-resonant magnetic braking on JET and TEXTOR

Y. Sun; Y. Liang; H.R. Koslowski; S. Jachmich; A. Alfier; O. Asunta; G. Corrigan; E. Delabie; C. Giroud; M.P. Gryaznevich; D. Harting; T. Hender; E. Nardon; V. Naulin; V. Parail; Tuomas Tala; C. Wiegman; S. Wiesen; T. Zhang; K.C. Shaing; JET-EFDA contributors

Non-resonant magnetic braking on JET and TEXTOR

Y. Sun, Y. Liang, H.R. Koslowski, S. Jachmich, A. Alfier, O. Asunta, G. Corrigan, E. Delabie, C. Giroud, M.P. Gryaznevich, D. Harting, T. Hender, E. Nardon, V. Naulin, V. Parail, Tuomas Tala, C. Wiegman, S. Wiesen, T. Zhang, K.C. ShaingJET-EFDA contributors

VTT Technical Research Centre of Finland

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

Abstract

The non-resonant magnetic braking effect induced by an NonAxisymmetric Magnetic Perturbation (NAMP) is investigated on JET and TEXTOR. The collionality dependence of the torque induced by the n = 1 NAMP field is obtained on JET. The observed torque is located mainly in the plasma core (normalized ρ < 0.4). It increases with decreasing collisionality. The calculation shows that it is close to the transition between the ν − √ν and the superbanana plateau regimes in the plasma core. The NTV torque is modeled by using the smoothly connnected formula in the collisionless regimes. The calculated collisionality dependence shows the same tendency as the experimental observation due to the resonant particle effect. The strongest NTV torque is also located in the plasma core because of the resonant particle effect. However, the magnitudes of the NTV torque is still about 1-2 orders smaller than the observed ones on JET. There is no obvious braking effect with m/n = 6/2 NAMP generated by the Dynamic Ergodic Divertor (DED) on TEXTOR. The calculated NTV torque on TEXTOR is also very small.

Original language	English
Title of host publication	Proceedings of the 23rd IAEA Fusion Energy Conference
Publisher	International Atomic Energy Agency IAEA
Publication status	Published - 2010
MoE publication type	Not Eligible
Event	23rd IAEA Fusion Energy Conference, FEC 2010 - Daejon, Korea, Republic of Duration: 10 Oct 2010 → 16 Oct 2010

Conference

Conference	23rd IAEA Fusion Energy Conference, FEC 2010
Country/Territory	Korea, Republic of
City	Daejon
Period	10/10/10 → 16/10/10

Keywords

plasma physics
fusion energy

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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http://www-naweb.iaea.org/napc/physics/FEC/FEC2010/papers/exs_p3-06.pdf

Cite this

Sun, Y., Liang, Y., Koslowski, H. R., Jachmich, S., Alfier, A., Asunta, O., Corrigan, G., Delabie, E., Giroud, C., Gryaznevich, M. P., Harting, D., Hender, T., Nardon, E., Naulin, V., Parail, V., Tala, T., Wiegman, C., Wiesen, S., Zhang, T., ... JET-EFDA contributors (2010). Non-resonant magnetic braking on JET and TEXTOR. In Proceedings of the 23rd IAEA Fusion Energy Conference Article EXS/P3-06 International Atomic Energy Agency IAEA. http://www-naweb.iaea.org/napc/physics/FEC/FEC2010/papers/exs_p3-06.pdf

@inproceedings{ffdd658f17cd483f8edbd2e2cc5ab0d9,

title = "Non-resonant magnetic braking on JET and TEXTOR",

abstract = "The non-resonant magnetic braking effect induced by an NonAxisymmetric Magnetic Perturbation (NAMP) is investigated on JET and TEXTOR. The collionality dependence of the torque induced by the n = 1 NAMP field is obtained on JET. The observed torque is located mainly in the plasma core (normalized ρ < 0.4). It increases with decreasing collisionality. The calculation shows that it is close to the transition between the ν − √ν and the superbanana plateau regimes in the plasma core. The NTV torque is modeled by using the smoothly connnected formula in the collisionless regimes. The calculated collisionality dependence shows the same tendency as the experimental observation due to the resonant particle effect. The strongest NTV torque is also located in the plasma core because of the resonant particle effect. However, the magnitudes of the NTV torque is still about 1-2 orders smaller than the observed ones on JET. There is no obvious braking effect with m/n = 6/2 NAMP generated by the Dynamic Ergodic Divertor (DED) on TEXTOR. The calculated NTV torque on TEXTOR is also very small.",

keywords = "plasma physics, fusion energy",

author = "Y. Sun and Y. Liang and H.R. Koslowski and S. Jachmich and A. Alfier and O. Asunta and G. Corrigan and E. Delabie and C. Giroud and M.P. Gryaznevich and D. Harting and T. Hender and E. Nardon and V. Naulin and V. Parail and Tuomas Tala and C. Wiegman and S. Wiesen and T. Zhang and K.C. Shaing and {JET-EFDA contributors}",

year = "2010",

language = "English",

booktitle = "Proceedings of the 23rd IAEA Fusion Energy Conference",

publisher = "International Atomic Energy Agency IAEA",

address = "Austria",

note = "23rd IAEA Fusion Energy Conference, FEC 2010 ; Conference date: 10-10-2010 Through 16-10-2010",

}

Sun, Y, Liang, Y, Koslowski, HR, Jachmich, S, Alfier, A, Asunta, O, Corrigan, G, Delabie, E, Giroud, C, Gryaznevich, MP, Harting, D, Hender, T, Nardon, E, Naulin, V, Parail, V, Tala, T, Wiegman, C, Wiesen, S, Zhang, T, Shaing, KC & JET-EFDA contributors 2010, Non-resonant magnetic braking on JET and TEXTOR. in Proceedings of the 23rd IAEA Fusion Energy Conference., EXS/P3-06, International Atomic Energy Agency IAEA, 23rd IAEA Fusion Energy Conference, FEC 2010, Daejon, Korea, Republic of, 10/10/10. <http://www-naweb.iaea.org/napc/physics/FEC/FEC2010/papers/exs_p3-06.pdf>

TY - GEN

T1 - Non-resonant magnetic braking on JET and TEXTOR

AU - Sun, Y.

AU - Liang, Y.

AU - Koslowski, H.R.

AU - Jachmich, S.

AU - Alfier, A.

AU - Asunta, O.

AU - Corrigan, G.

AU - Delabie, E.

AU - Giroud, C.

AU - Gryaznevich, M.P.

AU - Harting, D.

AU - Hender, T.

AU - Nardon, E.

AU - Naulin, V.

AU - Parail, V.

AU - Tala, Tuomas

AU - Wiegman, C.

AU - Wiesen, S.

AU - Zhang, T.

AU - Shaing, K.C.

AU - JET-EFDA contributors

PY - 2010

Y1 - 2010

N2 - The non-resonant magnetic braking effect induced by an NonAxisymmetric Magnetic Perturbation (NAMP) is investigated on JET and TEXTOR. The collionality dependence of the torque induced by the n = 1 NAMP field is obtained on JET. The observed torque is located mainly in the plasma core (normalized ρ < 0.4). It increases with decreasing collisionality. The calculation shows that it is close to the transition between the ν − √ν and the superbanana plateau regimes in the plasma core. The NTV torque is modeled by using the smoothly connnected formula in the collisionless regimes. The calculated collisionality dependence shows the same tendency as the experimental observation due to the resonant particle effect. The strongest NTV torque is also located in the plasma core because of the resonant particle effect. However, the magnitudes of the NTV torque is still about 1-2 orders smaller than the observed ones on JET. There is no obvious braking effect with m/n = 6/2 NAMP generated by the Dynamic Ergodic Divertor (DED) on TEXTOR. The calculated NTV torque on TEXTOR is also very small.

AB - The non-resonant magnetic braking effect induced by an NonAxisymmetric Magnetic Perturbation (NAMP) is investigated on JET and TEXTOR. The collionality dependence of the torque induced by the n = 1 NAMP field is obtained on JET. The observed torque is located mainly in the plasma core (normalized ρ < 0.4). It increases with decreasing collisionality. The calculation shows that it is close to the transition between the ν − √ν and the superbanana plateau regimes in the plasma core. The NTV torque is modeled by using the smoothly connnected formula in the collisionless regimes. The calculated collisionality dependence shows the same tendency as the experimental observation due to the resonant particle effect. The strongest NTV torque is also located in the plasma core because of the resonant particle effect. However, the magnitudes of the NTV torque is still about 1-2 orders smaller than the observed ones on JET. There is no obvious braking effect with m/n = 6/2 NAMP generated by the Dynamic Ergodic Divertor (DED) on TEXTOR. The calculated NTV torque on TEXTOR is also very small.

KW - plasma physics

KW - fusion energy

UR - http://www-pub.iaea.org/mtcd/meetings/PDFplus/2010/cn180/cn180_BookOfAbstracts.pdf

M3 - Conference article in proceedings

BT - Proceedings of the 23rd IAEA Fusion Energy Conference

PB - International Atomic Energy Agency IAEA

T2 - 23rd IAEA Fusion Energy Conference, FEC 2010

Y2 - 10 October 2010 through 16 October 2010

ER -

Non-resonant magnetic braking on JET and TEXTOR

Abstract

Conference

Keywords

UN SDGs

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