Ion transport barrier formation with low injected torque in JET

N. C. Hawkes; B. Esposito; Y. Andrew; T. M. Biewer; J. H. Brzozowski; M. Brix; A. Cardinali; F. Crisanti; K. Crombé; D. Van Eester; R. Felton; C. Giroud; T. Johnson; E. Lerche; A. Meigs; V. Parail; S. Sharapov; C. Sozzi; I. Voitsekhovitch; K. D. Zastrow

Ion transport barrier formation with low injected torque in JET

N. C. Hawkes, B. Esposito, Y. Andrew, T. M. Biewer, J. H. Brzozowski, M. Brix, A. Cardinali, F. Crisanti, K. Crombé, D. Van Eester, R. Felton, C. Giroud, T. Johnson, E. Lerche, A. Meigs, V. Parail, S. Sharapov, C. Sozzi, I. Voitsekhovitch, K. D. Zastrow

Diagnostics and Control

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Ion temperature ITB trigger events have been provoked on JET with very low levels of injected torque using a ³He minority ion heating scheme. The evidence indicates that E x B shear driven by toroidal rotation is not important in these ITB triggers, however the ITBs which form are weak and short lived. Evidence from other experiments [4], suggests that higher torque is necessary to establish and maintain strong ITBs. Future experiments with the increased RF power of the new JET ICRH antenna will be made to explore whether 'strong' ITBs can be created at high power and low applied torque.

Original language	English
Title of host publication	34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts
Pages	504-507
Number of pages	4
Edition	1
State	Published - 2007
Event	34th European Physical Society Conference on Plasma Physics 2007, EPS 2007 - Warsaw, Poland Duration: Jul 2 2007 → Jul 6 2007

Publication series

Name	34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts
Number	1
Volume	31

Conference

Conference	34th European Physical Society Conference on Plasma Physics 2007, EPS 2007
Country/Territory	Poland
City	Warsaw
Period	07/2/07 → 07/6/07

Cite this

Hawkes, N. C., Esposito, B., Andrew, Y., Biewer, T. M., Brzozowski, J. H., Brix, M., Cardinali, A., Crisanti, F., Crombé, K., Van Eester, D., Felton, R., Giroud, C., Johnson, T., Lerche, E., Meigs, A., Parail, V., Sharapov, S., Sozzi, C., Voitsekhovitch, I., & Zastrow, K. D. (2007). Ion transport barrier formation with low injected torque in JET. In 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts (1 ed., pp. 504-507). (34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts; Vol. 31, No. 1).

@inproceedings{34766d84f6b64cd4a3de7bd7ee7b6977,

title = "Ion transport barrier formation with low injected torque in JET",

abstract = "Ion temperature ITB trigger events have been provoked on JET with very low levels of injected torque using a 3He minority ion heating scheme. The evidence indicates that E x B shear driven by toroidal rotation is not important in these ITB triggers, however the ITBs which form are weak and short lived. Evidence from other experiments [4], suggests that higher torque is necessary to establish and maintain strong ITBs. Future experiments with the increased RF power of the new JET ICRH antenna will be made to explore whether 'strong' ITBs can be created at high power and low applied torque.",

author = "Hawkes, {N. C.} and B. Esposito and Y. Andrew and Biewer, {T. M.} and Brzozowski, {J. H.} and M. Brix and A. Cardinali and F. Crisanti and K. Cromb{\'e} and {Van Eester}, D. and R. Felton and C. Giroud and T. Johnson and E. Lerche and A. Meigs and V. Parail and S. Sharapov and C. Sozzi and I. Voitsekhovitch and Zastrow, {K. D.}",

year = "2007",

language = "English",

isbn = "9781622763344",

series = "34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts",

number = "1",

pages = "504--507",

booktitle = "34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts",

edition = "1",

note = "34th European Physical Society Conference on Plasma Physics 2007, EPS 2007 ; Conference date: 02-07-2007 Through 06-07-2007",

}

Hawkes, NC, Esposito, B, Andrew, Y, Biewer, TM, Brzozowski, JH, Brix, M, Cardinali, A, Crisanti, F, Crombé, K, Van Eester, D, Felton, R, Giroud, C, Johnson, T, Lerche, E, Meigs, A, Parail, V, Sharapov, S, Sozzi, C, Voitsekhovitch, I & Zastrow, KD 2007, Ion transport barrier formation with low injected torque in JET. in 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts. 1 edn, 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts, no. 1, vol. 31, pp. 504-507, 34th European Physical Society Conference on Plasma Physics 2007, EPS 2007, Warsaw, Poland, 07/2/07.

Ion transport barrier formation with low injected torque in JET. / Hawkes, N. C.; Esposito, B.; Andrew, Y. et al.
34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts. 1. ed. 2007. p. 504-507 (34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts; Vol. 31, No. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Ion transport barrier formation with low injected torque in JET

AU - Hawkes, N. C.

AU - Esposito, B.

AU - Andrew, Y.

AU - Biewer, T. M.

AU - Brzozowski, J. H.

AU - Brix, M.

AU - Cardinali, A.

AU - Crisanti, F.

AU - Crombé, K.

AU - Van Eester, D.

AU - Felton, R.

AU - Giroud, C.

AU - Johnson, T.

AU - Lerche, E.

AU - Meigs, A.

AU - Parail, V.

AU - Sharapov, S.

AU - Sozzi, C.

AU - Voitsekhovitch, I.

AU - Zastrow, K. D.

PY - 2007

Y1 - 2007

N2 - Ion temperature ITB trigger events have been provoked on JET with very low levels of injected torque using a 3He minority ion heating scheme. The evidence indicates that E x B shear driven by toroidal rotation is not important in these ITB triggers, however the ITBs which form are weak and short lived. Evidence from other experiments [4], suggests that higher torque is necessary to establish and maintain strong ITBs. Future experiments with the increased RF power of the new JET ICRH antenna will be made to explore whether 'strong' ITBs can be created at high power and low applied torque.

AB - Ion temperature ITB trigger events have been provoked on JET with very low levels of injected torque using a 3He minority ion heating scheme. The evidence indicates that E x B shear driven by toroidal rotation is not important in these ITB triggers, however the ITBs which form are weak and short lived. Evidence from other experiments [4], suggests that higher torque is necessary to establish and maintain strong ITBs. Future experiments with the increased RF power of the new JET ICRH antenna will be made to explore whether 'strong' ITBs can be created at high power and low applied torque.

UR - http://www.scopus.com/inward/record.url?scp=84873867799&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84873867799

SN - 9781622763344

T3 - 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts

SP - 504

EP - 507

BT - 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts

T2 - 34th European Physical Society Conference on Plasma Physics 2007, EPS 2007

Y2 - 2 July 2007 through 6 July 2007

ER -

Ion transport barrier formation with low injected torque in JET

Abstract

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