Effects of enhanced toroidal field ripple on JET plasmas

G. Sadler; P. Barabaschi; E. Bertolini; S. Conroy; S. Corti; E. Deksnis; K. J. Dietz; H. P.L. De Esch; A. Gondhalekar; B. Green; M. Huart; M. Huguet; J. Jacquinot; O. N. Jarvis; A. Khudoleev; M. J. Loughlin; R. Konig; J. Last; A. Maas; M. Petrov; S. Putvinskii; C. Sborchia; D. Stork; B. Tubbing; P. Van Belle

doi:10.1088/0741-3335/34/13/028

Effects of enhanced toroidal field ripple on JET plasmas

G. Sadler, P. Barabaschi, E. Bertolini, S. Conroy, S. Corti, E. Deksnis, K. J. Dietz, H. P.L. De Esch, A. Gondhalekar, B. Green, M. Huart, M. Huguet, J. Jacquinot, O. N. Jarvis, A. Khudoleev, M. J. Loughlin, R. Konig, J. Last, A. Maas, M. PetrovS. Putvinskii, C. Sborchia, D. Stork, B. Tubbing, P. Van Belle

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

The JET machine is equipped with 32 toroidal field coils. In order to study the effect of TF ripple on the confinement of fast particles and, more generally, on the plasma behaviour, a series of experiments was performed using only 16 TF coils. At the position of the outer limiter, this led to an increase of the ripple, delta =(B_max-B_min)/(B_max+B _min), from 1% to 12.5%. The toroidal field was limited to 1.4 T, with plasma currents in the range between 2 and 3 MA. Additional heating power-levels and energy-input were kept low in order to avoid possible damage to some first wall components made out of Inconel. Experiments were carried out using 140 keV NBI injected deuterons, ICRF accelerated protons and deuterons ( approximately 0.5 to approximately 2 MeV) and 1 MeV tritons from DD reactions.

Original language	English
Article number	028
Pages (from-to)	1971-1976
Number of pages	6
Journal	Plasma Physics and Controlled Fusion
Volume	34
Issue number	13
DOIs	https://doi.org/10.1088/0741-3335/34/13/028
State	Published - 1992
Externally published	Yes

Keywords

Fast particle confinement
ICRF heating (2nd harmonic H minurity & 4th harmonic NBI injected D°)
Tokamak
Toroidal field ripple
Triton burn-up
α-particle simulations

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10.1088/0741-3335/34/13/028

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Sadler, G., Barabaschi, P., Bertolini, E., Conroy, S., Corti, S., Deksnis, E., Dietz, K. J., De Esch, H. P. L., Gondhalekar, A., Green, B., Huart, M., Huguet, M., Jacquinot, J., Jarvis, O. N., Khudoleev, A., Loughlin, M. J., Konig, R., Last, J., Maas, A., ... Van Belle, P. (1992). Effects of enhanced toroidal field ripple on JET plasmas. Plasma Physics and Controlled Fusion, 34(13), 1971-1976. Article 028. https://doi.org/10.1088/0741-3335/34/13/028

@article{dfa52e7161274ff4b73521d20a8e482a,

title = "Effects of enhanced toroidal field ripple on JET plasmas",

abstract = "The JET machine is equipped with 32 toroidal field coils. In order to study the effect of TF ripple on the confinement of fast particles and, more generally, on the plasma behaviour, a series of experiments was performed using only 16 TF coils. At the position of the outer limiter, this led to an increase of the ripple, delta =(Bmax-Bmin)/(Bmax+B min), from 1% to 12.5%. The toroidal field was limited to 1.4 T, with plasma currents in the range between 2 and 3 MA. Additional heating power-levels and energy-input were kept low in order to avoid possible damage to some first wall components made out of Inconel. Experiments were carried out using 140 keV NBI injected deuterons, ICRF accelerated protons and deuterons ( approximately 0.5 to approximately 2 MeV) and 1 MeV tritons from DD reactions.",

keywords = "Fast particle confinement, ICRF heating (2nd harmonic H minurity & 4th harmonic NBI injected D°), Tokamak, Toroidal field ripple, Triton burn-up, α-particle simulations",

author = "G. Sadler and P. Barabaschi and E. Bertolini and S. Conroy and S. Corti and E. Deksnis and Dietz, {K. J.} and {De Esch}, {H. P.L.} and A. Gondhalekar and B. Green and M. Huart and M. Huguet and J. Jacquinot and Jarvis, {O. N.} and A. Khudoleev and Loughlin, {M. J.} and R. Konig and J. Last and A. Maas and M. Petrov and S. Putvinskii and C. Sborchia and D. Stork and B. Tubbing and {Van Belle}, P.",

year = "1992",

doi = "10.1088/0741-3335/34/13/028",

language = "English",

volume = "34",

pages = "1971--1976",

journal = "Plasma Physics and Controlled Fusion",

issn = "0741-3335",

publisher = "IOP Publishing",

number = "13",

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Sadler, G, Barabaschi, P, Bertolini, E, Conroy, S, Corti, S, Deksnis, E, Dietz, KJ, De Esch, HPL, Gondhalekar, A, Green, B, Huart, M, Huguet, M, Jacquinot, J, Jarvis, ON, Khudoleev, A, Loughlin, MJ, Konig, R, Last, J, Maas, A, Petrov, M, Putvinskii, S, Sborchia, C, Stork, D, Tubbing, B & Van Belle, P 1992, 'Effects of enhanced toroidal field ripple on JET plasmas', Plasma Physics and Controlled Fusion, vol. 34, no. 13, 028, pp. 1971-1976. https://doi.org/10.1088/0741-3335/34/13/028

TY - JOUR

T1 - Effects of enhanced toroidal field ripple on JET plasmas

AU - Sadler, G.

AU - Barabaschi, P.

AU - Bertolini, E.

AU - Conroy, S.

AU - Corti, S.

AU - Deksnis, E.

AU - Dietz, K. J.

AU - De Esch, H. P.L.

AU - Gondhalekar, A.

AU - Green, B.

AU - Huart, M.

AU - Huguet, M.

AU - Jacquinot, J.

AU - Jarvis, O. N.

AU - Khudoleev, A.

AU - Loughlin, M. J.

AU - Konig, R.

AU - Last, J.

AU - Maas, A.

AU - Petrov, M.

AU - Putvinskii, S.

AU - Sborchia, C.

AU - Stork, D.

AU - Tubbing, B.

AU - Van Belle, P.

PY - 1992

Y1 - 1992

N2 - The JET machine is equipped with 32 toroidal field coils. In order to study the effect of TF ripple on the confinement of fast particles and, more generally, on the plasma behaviour, a series of experiments was performed using only 16 TF coils. At the position of the outer limiter, this led to an increase of the ripple, delta =(Bmax-Bmin)/(Bmax+B min), from 1% to 12.5%. The toroidal field was limited to 1.4 T, with plasma currents in the range between 2 and 3 MA. Additional heating power-levels and energy-input were kept low in order to avoid possible damage to some first wall components made out of Inconel. Experiments were carried out using 140 keV NBI injected deuterons, ICRF accelerated protons and deuterons ( approximately 0.5 to approximately 2 MeV) and 1 MeV tritons from DD reactions.

AB - The JET machine is equipped with 32 toroidal field coils. In order to study the effect of TF ripple on the confinement of fast particles and, more generally, on the plasma behaviour, a series of experiments was performed using only 16 TF coils. At the position of the outer limiter, this led to an increase of the ripple, delta =(Bmax-Bmin)/(Bmax+B min), from 1% to 12.5%. The toroidal field was limited to 1.4 T, with plasma currents in the range between 2 and 3 MA. Additional heating power-levels and energy-input were kept low in order to avoid possible damage to some first wall components made out of Inconel. Experiments were carried out using 140 keV NBI injected deuterons, ICRF accelerated protons and deuterons ( approximately 0.5 to approximately 2 MeV) and 1 MeV tritons from DD reactions.

KW - Fast particle confinement

KW - ICRF heating (2nd harmonic H minurity & 4th harmonic NBI injected D°)

KW - Tokamak

KW - Toroidal field ripple

KW - Triton burn-up

KW - α-particle simulations

UR - http://www.scopus.com/inward/record.url?scp=0342934061&partnerID=8YFLogxK

U2 - 10.1088/0741-3335/34/13/028

DO - 10.1088/0741-3335/34/13/028

M3 - Article

AN - SCOPUS:0342934061

SN - 0741-3335

VL - 34

SP - 1971

EP - 1976

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 13

M1 - 028

ER -

Effects of enhanced toroidal field ripple on JET plasmas

Abstract

Keywords

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