A study of RF power absorption mechanisms in JET ICWC plasmas

A. Lyssoivan; D. Van Eester; R. Koch; E. Lerche; D. Douai; T. Wauters; V. Bobkov; S. Brezinsek; F. Durodie; M. Graham; E. Joffrin; A. Kreter; V. Kyrytsya; M. Maslov; M. L. Mayoral; V. Moiseenko; I. Monakhov; J. Ongena; I. Pankratov; M. K. Paul; V. Philipps; R. A. Pitts; V. Plyusnin; G. Sergienko

A study of RF power absorption mechanisms in JET ICWC plasmas

A. Lyssoivan
, D. Van Eester
, R. Koch
, E. Lerche
, D. Douai
, T. Wauters
, V. Bobkov
, S. Brezinsek
, F. Durodie
, M. Graham
, E. Joffrin
, A. Kreter
, V. Kyrytsya
, M. Maslov
, M. L. Mayoral
, V. Moiseenko
, I. Monakhov
, J. Ongena
, I. Pankratov
, M. K. Paul

V. Philipps, R. A. Pitts, V. Plyusnin, G. Sergienko

Laboratory for Plasma Physics

Commissariat à l'Énergie Atomique et aux Énergies Alternatives
Max Planck Institute for Plasma Physics
FORSCHUNGSZENTRUM JULICH GMBH
Culham Centre for Fusion Energy
Inst. of Plasma Physics of the National Science Center, Kharkiv Institute of Physics and Technology
National Institute of Technology Agartala
ITER
Instituto Superior Técnico

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/Congresprocedure › Conferentiebijdrage › peer review

Samenvatting

This paper focuses on further study of the Radio-Frequency (RF) power absorption mechanisms responsible for Ion Cyclotron Wall Conditioning (ICWC) discharge ignition and sustainment in fusion machines in the presence of high toroidal magnetic field. The dominant electron collisional, ion collisional and cyclotron absorption mechanisms are analyzed during local (antenna-near) gas breakdown (ω _pe < ω ) and over-torus plasma wave excitation (ω _pe > ω) phases of RF discharge. Optimization of the absorbed RF power in terms of (i) Ez - field generation (electric field along B _T-field lines), (ii) antenna phasing and (iii) waves excitation in plasmas with multi-ion species resulted in a successful performance of the JET ICWC experiments (B _T=3.3 f,/=25 MHz) using the standard ICRF A2 antennas in a scenario envisaged at ITER full field (B _T=53 T,f=40 MHz) - i.e. with the fundamental ion cyclotron resonance (ICR) of the deuterons, ω = ω _cD+, on-axis.

Originele taal-2	Engels
Titel	38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts
Pagina's	1164-1167
Aantal pagina's	4
Status	Gepubliceerd - 2011
Evenement	38th EPS Conference on Plasma Physics 2011, EPS 2011 - Strasbourg, Frankrijk Duur: 27 jun. 2011 → 1 jul. 2011

Publicatie series

Naam	38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts
Volume	35 2

Congres

Congres	38th EPS Conference on Plasma Physics 2011, EPS 2011
Land/Regio	Frankrijk
Stad	Strasbourg
Periode	27/06/11 → 1/07/11

Andere bestanden en links

Link naar publicatie in Scopus

Citeer dit

Lyssoivan, A., Van Eester, D., Koch, R., Lerche, E., Douai, D., Wauters, T., Bobkov, V., Brezinsek, S., Durodie, F., Graham, M., Joffrin, E., Kreter, A., Kyrytsya, V., Maslov, M., Mayoral, M. L., Moiseenko, V., Monakhov, I., Ongena, J., Pankratov, I., ... Sergienko, G. (2011). A study of RF power absorption mechanisms in JET ICWC plasmas. In 38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts (blz. 1164-1167). (38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts; Vol. 35 2).

@inproceedings{a3cafbc052614a3893c1621952855fcb,

title = "A study of RF power absorption mechanisms in JET ICWC plasmas",

abstract = "This paper focuses on further study of the Radio-Frequency (RF) power absorption mechanisms responsible for Ion Cyclotron Wall Conditioning (ICWC) discharge ignition and sustainment in fusion machines in the presence of high toroidal magnetic field. The dominant electron collisional, ion collisional and cyclotron absorption mechanisms are analyzed during local (antenna-near) gas breakdown (ω pe < ω ) and over-torus plasma wave excitation (ω pe > ω) phases of RF discharge. Optimization of the absorbed RF power in terms of (i) Ez - field generation (electric field along B T-field lines), (ii) antenna phasing and (iii) waves excitation in plasmas with multi-ion species resulted in a successful performance of the JET ICWC experiments (B T=3.3 f,/=25 MHz) using the standard ICRF A2 antennas in a scenario envisaged at ITER full field (B T=53 T,f=40 MHz) - i.e. with the fundamental ion cyclotron resonance (ICR) of the deuterons, ω = ω cD+, on-axis.",

author = "A. Lyssoivan and \{Van Eester\}, D. and R. Koch and E. Lerche and D. Douai and T. Wauters and V. Bobkov and S. Brezinsek and F. Durodie and M. Graham and E. Joffrin and A. Kreter and V. Kyrytsya and M. Maslov and Mayoral, \{M. L.\} and V. Moiseenko and I. Monakhov and J. Ongena and I. Pankratov and Paul, \{M. K.\} and V. Philipps and Pitts, \{R. A.\} and V. Plyusnin and G. Sergienko",

year = "2011",

language = "English",

isbn = "9781618395931",

series = "38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts",

pages = "1164--1167",

booktitle = "38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts",

note = "38th EPS Conference on Plasma Physics 2011, EPS 2011 ; Conference date: 27-06-2011 Through 01-07-2011",

}

Lyssoivan, A, Van Eester, D, Koch, R, Lerche, E, Douai, D, Wauters, T, Bobkov, V, Brezinsek, S, Durodie, F, Graham, M, Joffrin, E, Kreter, A, Kyrytsya, V, Maslov, M, Mayoral, ML, Moiseenko, V, Monakhov, I, Ongena, J, Pankratov, I, Paul, MK, Philipps, V, Pitts, RA, Plyusnin, V & Sergienko, G 2011, A study of RF power absorption mechanisms in JET ICWC plasmas. in 38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts. 38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts, vol. 35 2, blz. 1164-1167, 38th EPS Conference on Plasma Physics 2011, EPS 2011, Strasbourg, Frankrijk, 27/06/11.

A study of RF power absorption mechanisms in JET ICWC plasmas. / Lyssoivan, A.; Van Eester, D.; Koch, R. et al.
38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts. 2011. blz. 1164-1167 (38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts; Vol. 35 2).

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/Congresprocedure › Conferentiebijdrage › peer review

TY - GEN

T1 - A study of RF power absorption mechanisms in JET ICWC plasmas

AU - Lyssoivan, A.

AU - Van Eester, D.

AU - Koch, R.

AU - Lerche, E.

AU - Douai, D.

AU - Wauters, T.

AU - Bobkov, V.

AU - Brezinsek, S.

AU - Durodie, F.

AU - Graham, M.

AU - Joffrin, E.

AU - Kreter, A.

AU - Kyrytsya, V.

AU - Maslov, M.

AU - Mayoral, M. L.

AU - Moiseenko, V.

AU - Monakhov, I.

AU - Ongena, J.

AU - Pankratov, I.

AU - Paul, M. K.

AU - Philipps, V.

AU - Pitts, R. A.

AU - Plyusnin, V.

AU - Sergienko, G.

PY - 2011

Y1 - 2011

N2 - This paper focuses on further study of the Radio-Frequency (RF) power absorption mechanisms responsible for Ion Cyclotron Wall Conditioning (ICWC) discharge ignition and sustainment in fusion machines in the presence of high toroidal magnetic field. The dominant electron collisional, ion collisional and cyclotron absorption mechanisms are analyzed during local (antenna-near) gas breakdown (ω pe < ω ) and over-torus plasma wave excitation (ω pe > ω) phases of RF discharge. Optimization of the absorbed RF power in terms of (i) Ez - field generation (electric field along B T-field lines), (ii) antenna phasing and (iii) waves excitation in plasmas with multi-ion species resulted in a successful performance of the JET ICWC experiments (B T=3.3 f,/=25 MHz) using the standard ICRF A2 antennas in a scenario envisaged at ITER full field (B T=53 T,f=40 MHz) - i.e. with the fundamental ion cyclotron resonance (ICR) of the deuterons, ω = ω cD+, on-axis.

AB - This paper focuses on further study of the Radio-Frequency (RF) power absorption mechanisms responsible for Ion Cyclotron Wall Conditioning (ICWC) discharge ignition and sustainment in fusion machines in the presence of high toroidal magnetic field. The dominant electron collisional, ion collisional and cyclotron absorption mechanisms are analyzed during local (antenna-near) gas breakdown (ω pe < ω ) and over-torus plasma wave excitation (ω pe > ω) phases of RF discharge. Optimization of the absorbed RF power in terms of (i) Ez - field generation (electric field along B T-field lines), (ii) antenna phasing and (iii) waves excitation in plasmas with multi-ion species resulted in a successful performance of the JET ICWC experiments (B T=3.3 f,/=25 MHz) using the standard ICRF A2 antennas in a scenario envisaged at ITER full field (B T=53 T,f=40 MHz) - i.e. with the fundamental ion cyclotron resonance (ICR) of the deuterons, ω = ω cD+, on-axis.

UR - https://www.scopus.com/pages/publications/84867653855

M3 - Conference contribution

AN - SCOPUS:84867653855

SN - 9781618395931

T3 - 38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts

SP - 1164

EP - 1167

BT - 38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts

T2 - 38th EPS Conference on Plasma Physics 2011, EPS 2011

Y2 - 27 June 2011 through 1 July 2011

ER -

A study of RF power absorption mechanisms in JET ICWC plasmas

Samenvatting

Publicatie series

Congres

Andere bestanden en links

Vingerafdruk

Citeer dit