Core Transport Properties in JT-60U and JET Identity Plasmas

X. Litaudon; Y. Sakamoto; P.C. de Vries; Antti Salmi; Tuomas Tala; C. Angioni; S. Benkadda; M.N.A. Beurskens; C. Bourdelle; M. Brix; K. Crombé; T. Fujita; S. Futatani; X. Garbet; C. Giroud; N.C. Hawkes; N. Hayashi; G.T. Hoang; D. Hogeweij; G. Matsunaga; T. Nakano; N. Oyama; V. Parail; K. Shinohara; T. Suzuki; M. Takechi; H. Takenaga; T. Takizuka; H. Urano; I. Voitsekhovich; M. Yoshida; JET-EFDA contributors; JT-60 Team; ITPA Transport & Confinement Topical Group

Core Transport Properties in JT-60U and JET Identity Plasmas

X. Litaudon, Y. Sakamoto, P.C. de Vries, Antti Salmi, Tuomas Tala, C. Angioni, S. Benkadda, M.N.A. Beurskens, C. Bourdelle, M. Brix, K. Crombé, T. Fujita, S. Futatani, X. Garbet, C. Giroud, N.C. Hawkes, N. Hayashi, G.T. Hoang, D. Hogeweij, G. MatsunagaT. Nakano, N. Oyama, V. Parail, K. Shinohara, T. Suzuki, M. Takechi, H. Takenaga, T. Takizuka, H. Urano, I. Voitsekhovich, M. Yoshida, JET-EFDA contributors, JT-60 Team, ITPA Transport & Confinement Topical Group

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

Abstract

The paper compares the transport properties of a set of dimensionless identity experiments performed between JET and JT-60U in the advanced tokamak regime with Internal Transport Barrier, ITB. These International Tokamak Physics Activity, ITPA, joint experiments were carried out with the same plasma shape, toroidal magnetic field ripple and dimensionless profiles. Similarities in the ITB triggering mechanisms and sustainment were observed when a good match was achieved of the most relevant normalized profiles except the toroidal Mach number. Similar thermal ion transport levels have been measured in either monotonic or non-monotonic q-profiles. On the contrary, differences between JET and JT-60U were observed on the electron thermal and particle confinement in reversed magnetic shear configurations. The large shear reversal in the center of JT-60U plasmas allowed the sustainment of stronger electron density ITBs compared to JET. As a consequence of peaked density profile, the core bootstrap current density is more than five times higher in JT60U compared to JET and reversed magnetic shear configurations are self-sustained in JT-60U scenarios.

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

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Litaudon, X., Sakamoto, Y., de Vries, P. C., Salmi, A., Tala, T., Angioni, C., Benkadda, S., Beurskens, M. N. A., Bourdelle, C., Brix, M., Crombé, K., Fujita, T., Futatani, S., Garbet, X., Giroud, C., Hawkes, N. C., Hayashi, N., Hoang, G. T., Hogeweij, D., ... ITPA Transport & Confinement Topical Group (2010). Core Transport Properties in JT-60U and JET Identity Plasmas. In Proceedings of the 23rd IAEA Fusion Energy Conference [EXC/P4-12] International Atomic Energy Agency IAEA. http://www-naweb.iaea.org/napc/physics/FEC/FEC2010/papers/exc_p4-12.pdf

@inproceedings{bfe36dbf7fe74037acf86e64744cc5fd,

title = "Core Transport Properties in JT-60U and JET Identity Plasmas",

abstract = "The paper compares the transport properties of a set of dimensionless identity experiments performed between JET and JT-60U in the advanced tokamak regime with Internal Transport Barrier, ITB. These International Tokamak Physics Activity, ITPA, joint experiments were carried out with the same plasma shape, toroidal magnetic field ripple and dimensionless profiles. Similarities in the ITB triggering mechanisms and sustainment were observed when a good match was achieved of the most relevant normalized profiles except the toroidal Mach number. Similar thermal ion transport levels have been measured in either monotonic or non-monotonic q-profiles. On the contrary, differences between JET and JT-60U were observed on the electron thermal and particle confinement in reversed magnetic shear configurations. The large shear reversal in the center of JT-60U plasmas allowed the sustainment of stronger electron density ITBs compared to JET. As a consequence of peaked density profile, the core bootstrap current density is more than five times higher in JT60U compared to JET and reversed magnetic shear configurations are self-sustained in JT-60U scenarios. ",

author = "X. Litaudon and Y. Sakamoto and {de Vries}, P.C. and Antti Salmi and Tuomas Tala and C. Angioni and S. Benkadda and M.N.A. Beurskens and C. Bourdelle and M. Brix and K. Cromb{\'e} and T. Fujita and S. Futatani and X. Garbet and C. Giroud and N.C. Hawkes and N. Hayashi and G.T. Hoang and D. Hogeweij and G. Matsunaga and T. Nakano and N. Oyama and V. Parail and K. Shinohara and T. Suzuki and M. Takechi and H. Takenaga and T. Takizuka and H. Urano and I. Voitsekhovich and M. Yoshida and {JET-EFDA contributors} and {JT-60 Team} and {ITPA Transport & Confinement Topical Group}",

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",

}

Litaudon, X, Sakamoto, Y, de Vries, PC, Salmi, A , Tala, T, Angioni, C, Benkadda, S, Beurskens, MNA, Bourdelle, C, Brix, M, Crombé, K, Fujita, T, Futatani, S, Garbet, X, Giroud, C, Hawkes, NC, Hayashi, N, Hoang, GT, Hogeweij, D, Matsunaga, G, Nakano, T, Oyama, N, Parail, V, Shinohara, K, Suzuki, T, Takechi, M, Takenaga, H, Takizuka, T, Urano, H, Voitsekhovich, I, Yoshida, M, JET-EFDA contributors, JT-60 Team & ITPA Transport & Confinement Topical Group 2010, Core Transport Properties in JT-60U and JET Identity Plasmas. in Proceedings of the 23rd IAEA Fusion Energy Conference., EXC/P4-12, 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/exc_p4-12.pdf>

TY - GEN

T1 - Core Transport Properties in JT-60U and JET Identity Plasmas

AU - Litaudon, X.

AU - Sakamoto, Y.

AU - de Vries, P.C.

AU - Salmi, Antti

AU - Tala, Tuomas

AU - Angioni, C.

AU - Benkadda, S.

AU - Beurskens, M.N.A.

AU - Bourdelle, C.

AU - Brix, M.

AU - Crombé, K.

AU - Fujita, T.

AU - Futatani, S.

AU - Garbet, X.

AU - Giroud, C.

AU - Hawkes, N.C.

AU - Hayashi, N.

AU - Hoang, G.T.

AU - Hogeweij, D.

AU - Matsunaga, G.

AU - Nakano, T.

AU - Oyama, N.

AU - Parail, V.

AU - Shinohara, K.

AU - Suzuki, T.

AU - Takechi, M.

AU - Takenaga, H.

AU - Takizuka, T.

AU - Urano, H.

AU - Voitsekhovich, I.

AU - Yoshida, M.

AU - JET-EFDA contributors

AU - JT-60 Team

AU - ITPA Transport & Confinement Topical Group

PY - 2010

Y1 - 2010

N2 - The paper compares the transport properties of a set of dimensionless identity experiments performed between JET and JT-60U in the advanced tokamak regime with Internal Transport Barrier, ITB. These International Tokamak Physics Activity, ITPA, joint experiments were carried out with the same plasma shape, toroidal magnetic field ripple and dimensionless profiles. Similarities in the ITB triggering mechanisms and sustainment were observed when a good match was achieved of the most relevant normalized profiles except the toroidal Mach number. Similar thermal ion transport levels have been measured in either monotonic or non-monotonic q-profiles. On the contrary, differences between JET and JT-60U were observed on the electron thermal and particle confinement in reversed magnetic shear configurations. The large shear reversal in the center of JT-60U plasmas allowed the sustainment of stronger electron density ITBs compared to JET. As a consequence of peaked density profile, the core bootstrap current density is more than five times higher in JT60U compared to JET and reversed magnetic shear configurations are self-sustained in JT-60U scenarios.

AB - The paper compares the transport properties of a set of dimensionless identity experiments performed between JET and JT-60U in the advanced tokamak regime with Internal Transport Barrier, ITB. These International Tokamak Physics Activity, ITPA, joint experiments were carried out with the same plasma shape, toroidal magnetic field ripple and dimensionless profiles. Similarities in the ITB triggering mechanisms and sustainment were observed when a good match was achieved of the most relevant normalized profiles except the toroidal Mach number. Similar thermal ion transport levels have been measured in either monotonic or non-monotonic q-profiles. On the contrary, differences between JET and JT-60U were observed on the electron thermal and particle confinement in reversed magnetic shear configurations. The large shear reversal in the center of JT-60U plasmas allowed the sustainment of stronger electron density ITBs compared to JET. As a consequence of peaked density profile, the core bootstrap current density is more than five times higher in JT60U compared to JET and reversed magnetic shear configurations are self-sustained in JT-60U scenarios.

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 -

Core Transport Properties in JT-60U and JET Identity Plasmas

Abstract

Conference

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