High Density Plasma Heating in the Tokamak à Configuration Variable ...
The Tokamak à Configuration Variable (TCV) is a medium size magnetic confinement thermonuclear fusion experiment designed for the study of the plasma performances as a function of its shape. It is equipped with a high power and highly flexible electron cyclotron heating (ECH) and current drive (ECCD...
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Lausanne, EPFL
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Online Access: | https://dx.doi.org/10.5075/epfl-thesis-5012 https://infoscience.epfl.ch/handle/20.500.14299/64455 |
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ftdatacite:10.5075/epfl-thesis-5012 2024-09-15T18:03:53+00:00 High Density Plasma Heating in the Tokamak à Configuration Variable ... Curchod, Loïc 2011 https://dx.doi.org/10.5075/epfl-thesis-5012 https://infoscience.epfl.ch/handle/20.500.14299/64455 en eng Lausanne, EPFL openaccess http://purl.org/coar/access_right/c_abf2 plasma high density H-mode heating current drive electron cyclotron waves ECW ECH ECCD electron Bernstein waves EBW EBH EBCD O-X-B mode conversion power absorption soft X-ray detector DMPX diamagnetic loop DML lower-hybrid waves LH parametric instability PI loop-antenna TCV tokamak plasmas haute densité mode-H chauffage génération de courant ondes cyclotroniques électroniques ondes de Bernstein électroniques conversion de mode absorption de puissance détecteur de rayons-X mous boucle diamagnétique ondes hybrides inférieures instabilité paramétrique antenne doctoral thesis Thesis Dissertation thesis 2011 ftdatacite https://doi.org/10.5075/epfl-thesis-5012 2024-08-01T11:06:13Z The Tokamak à Configuration Variable (TCV) is a medium size magnetic confinement thermonuclear fusion experiment designed for the study of the plasma performances as a function of its shape. It is equipped with a high power and highly flexible electron cyclotron heating (ECH) and current drive (ECCD) system. Up to 3 MW of 2nd harmonic EC power in ordinary (O2) or extraordinary (X2) polarization can be injected from TCV low-field side via six independently steerable launchers. In addition, up to 1:5 MW of 3rd harmonic EC power (X3) can be launched along the EC resonance from the top of TCV vacuum vessel. At high density, standard ECH and ECCD are prevented by the appearance of a cutoff layer screening the access to the EC resonance at the plasma center. As a consequence, less than 50% of TCV density operational domain is accessible to X2 and X3 ECH. The electron Bernstein waves (EBW) have been proposed to overcome this limitation. EBW is an electrostatic mode propagating beyond the plasma cutoff without upper ... Doctoral or Postdoctoral Thesis DML DataCite |
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ftdatacite |
language |
English |
topic |
plasma high density H-mode heating current drive electron cyclotron waves ECW ECH ECCD electron Bernstein waves EBW EBH EBCD O-X-B mode conversion power absorption soft X-ray detector DMPX diamagnetic loop DML lower-hybrid waves LH parametric instability PI loop-antenna TCV tokamak plasmas haute densité mode-H chauffage génération de courant ondes cyclotroniques électroniques ondes de Bernstein électroniques conversion de mode absorption de puissance détecteur de rayons-X mous boucle diamagnétique ondes hybrides inférieures instabilité paramétrique antenne |
spellingShingle |
plasma high density H-mode heating current drive electron cyclotron waves ECW ECH ECCD electron Bernstein waves EBW EBH EBCD O-X-B mode conversion power absorption soft X-ray detector DMPX diamagnetic loop DML lower-hybrid waves LH parametric instability PI loop-antenna TCV tokamak plasmas haute densité mode-H chauffage génération de courant ondes cyclotroniques électroniques ondes de Bernstein électroniques conversion de mode absorption de puissance détecteur de rayons-X mous boucle diamagnétique ondes hybrides inférieures instabilité paramétrique antenne Curchod, Loïc High Density Plasma Heating in the Tokamak à Configuration Variable ... |
topic_facet |
plasma high density H-mode heating current drive electron cyclotron waves ECW ECH ECCD electron Bernstein waves EBW EBH EBCD O-X-B mode conversion power absorption soft X-ray detector DMPX diamagnetic loop DML lower-hybrid waves LH parametric instability PI loop-antenna TCV tokamak plasmas haute densité mode-H chauffage génération de courant ondes cyclotroniques électroniques ondes de Bernstein électroniques conversion de mode absorption de puissance détecteur de rayons-X mous boucle diamagnétique ondes hybrides inférieures instabilité paramétrique antenne |
description |
The Tokamak à Configuration Variable (TCV) is a medium size magnetic confinement thermonuclear fusion experiment designed for the study of the plasma performances as a function of its shape. It is equipped with a high power and highly flexible electron cyclotron heating (ECH) and current drive (ECCD) system. Up to 3 MW of 2nd harmonic EC power in ordinary (O2) or extraordinary (X2) polarization can be injected from TCV low-field side via six independently steerable launchers. In addition, up to 1:5 MW of 3rd harmonic EC power (X3) can be launched along the EC resonance from the top of TCV vacuum vessel. At high density, standard ECH and ECCD are prevented by the appearance of a cutoff layer screening the access to the EC resonance at the plasma center. As a consequence, less than 50% of TCV density operational domain is accessible to X2 and X3 ECH. The electron Bernstein waves (EBW) have been proposed to overcome this limitation. EBW is an electrostatic mode propagating beyond the plasma cutoff without upper ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Curchod, Loïc |
author_facet |
Curchod, Loïc |
author_sort |
Curchod, Loïc |
title |
High Density Plasma Heating in the Tokamak à Configuration Variable ... |
title_short |
High Density Plasma Heating in the Tokamak à Configuration Variable ... |
title_full |
High Density Plasma Heating in the Tokamak à Configuration Variable ... |
title_fullStr |
High Density Plasma Heating in the Tokamak à Configuration Variable ... |
title_full_unstemmed |
High Density Plasma Heating in the Tokamak à Configuration Variable ... |
title_sort |
high density plasma heating in the tokamak à configuration variable ... |
publisher |
Lausanne, EPFL |
publishDate |
2011 |
url |
https://dx.doi.org/10.5075/epfl-thesis-5012 https://infoscience.epfl.ch/handle/20.500.14299/64455 |
genre |
DML |
genre_facet |
DML |
op_rights |
openaccess http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.5075/epfl-thesis-5012 |
_version_ |
1810441333270118400 |