Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where X. Courtois is active.

Publication


Featured researches published by X. Courtois.


Nuclear Fusion | 2010

Validation of the ITER-relevant passive-active-multijunction LHCD launcher on long pulses in Tore Supra

A. Ekedahl; L. Delpech; M. Goniche; D. Guilhem; J. Hillairet; M. Preynas; P.K. Sharma; J. Achard; Y.S. Bae; X. Bai; C. Balorin; Y. Baranov; V. Basiuk; A. Bécoulet; J. Belo; G. Berger-By; S. Bremond; C. Castaldo; S. Ceccuzzi; R. Cesario; E. Corbel; X. Courtois; J. Decker; E. Delmas; X. Ding; D. Douai; C. Goletto; J. Gunn; P. Hertout; G. T. Hoang

A new ITER-relevant lower hybrid current drive (LHCD) launcher, based on the passive-active-multijunction (PAM) concept, was brought into operation on the Tore Supra tokamak in autumn 2009. The PAM launcher concept was designed in view of ITER to allow efficient cooling of the waveguides, as required for long pulse operation. In addition, it offers low power reflection close to the cut-off density, which is very attractive for ITER, where the large distance between the plasma and the wall may bring the density in front of the launcher to low values. The first experimental campaign on Tore Supra has shown extremely encouraging results in terms of reflected power level and power handling. Power reflection coefficient <2% is obtained at low density in front of the launcher, i.e. close to the cut-off density, and very good agreement between the experimental results and the coupling code predictions is obtained. Long pulse operation at ITER-relevant power density has been demonstrated. The maximum power and energy reached so far is 2.7 MW during 78 s, corresponding to a power density of 25 MW m −2 , i.e. its design value at f = 3.7 GHz. In addition, 2.7 MW has been coupled at a plasma–launcher distance of 10 cm, with a power reflection coefficient <2%. Finally, full non-inductive discharges have been sustained for 50 s with the PAM.


Nuclear Fusion | 2015

WEST Physics Basis

C. Bourdelle; V. Basiuk; M. Becoulet; S. Bremond; J. Bucalossi; Hugo Bufferand; Guido Ciraolo; L. Colas; Y. Corre; X. Courtois; J. Decker; L. Delpech; P. Devynck; G. Dif-Pradalier; R.P. Doerner; D. Douai; Rémi Dumont; A. Ekedahl; N. Fedorczak; C. Fenzi; M. Firdaouss; J. Garcia; Ph. Ghendrih; C. Gil; G. Giruzzi; M. Goniche; C. Grisolia; A. Grosman; D. Guilhem; R. Guirlet

With WEST (Tungsten Environment in Steady State Tokamak) (Bucalossi et al 2014 Fusion Eng. Des. 89 907-12), the Tore Supra facility and team expertise (Dumont et al 2014 Plasma Phys. Control. Fusion 56 075020) is used to pave the way towards ITER divertor procurement and operation. It consists in implementing a divertor configuration and installing ITER-like actively cooled tungsten monoblocks in the Tore Supra tokamak, taking full benefit of its unique long-pulse capability. WEST is a user facility platform, open to all ITER partners. This paper describes the physics basis of WEST: the estimated heat flux on the divertor target, the planned heating schemes, the expected behaviour of the L-H threshold and of the pedestal and the potential W sources. A series of operating scenarios has been modelled, showing that ITER-relevant heat fluxes on the divertor can be achieved in WEST long pulse H-mode plasmas.


Fusion Engineering and Design | 2011

Feasibility study of an actively cooled tungsten divertor in Tore Supra for ITER technology testing

J. Bucalossi; A. Argouarch; V. Basiuk; O. Baulaigue; P. Bayetti; M. Becoulet; B. Bertrand; S. Bremond; P. Cara; M. Chantant; Y. Corre; X. Courtois; L. Doceul; A. Ekedahl; F. Faisse; M. Firdaouss; J. Garcia; L. Gargiulo; C. Gil; C. Grisolia; J. Gunn; S. Hacquin; P. Hertout; G. Huysmans; F. Imbeaux; G. Jiolat; M. Joanny; L. Jourd’Heuil; M. Jouve; A.S. Kukushkin


Fusion Engineering and Design | 2011

Heat flux calculation and problem of flaking of boron carbide coatings on the Faraday screen of the ICRH antennas during Tore Supra high power, long pulse operation

Y. Corre; M. Lipa; G. Agarici; V. Basiuk; L. Colas; X. Courtois; G. Dunand; Rémi Dumont; A. Ekedahl; Jean-Laurent Gardarein; C. C. Klepper; V. Martin; V. Moncada; C. Portafaix; Fabrice Rigollet; R. Tawizgant; J.M. Travère; K. Vulliez


Nuclear Fusion | 2014

Heat flux decay length during RF power operation in the Tore Supra tokamak

Y. Corre; J. Gunn; M. Firdaouss; S. Carpentier; M. Chantant; L. Colas; A. Ekedahl; Jean-Laurent Gardarein; M. Lipa; T. Loarer; X. Courtois; D. Guilhem; F. Saint-Laurent


9th IAEA Technical Meeting on Steady State Operation of Magnetic Fusion Devices | 2017

Start of the WEST Facility

J. Bucalossi; M. Missirlian; P. Moreau; F. Samaille; E. Tsitrone; T. Alarcon; L. Allegretti; S. Antusch; T. Batal; O. Baulaigue; F. Bouquey; C. Bourdelle; S. Bremond; C. Brun; B. Cantone; M. Chantant; C. Chavda; J. Colnel; E. Corbel; Y. Corre; X. Courtois; R. Dejarnac; E. Delmas; L. Delpech; C. Desgranges; P. Devynck; L. Doceul; D. Douai; H. Dougnac; K. Ezato

Collaboration


Dive into the X. Courtois's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar

J. Bucalossi

University of California

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

C. C. Klepper

Oak Ridge National Laboratory

View shared research outputs
Top Co-Authors

Avatar

R.P. Doerner

University of California

View shared research outputs
Top Co-Authors

Avatar

Hugo Bufferand

Aix-Marseille University

View shared research outputs
Top Co-Authors

Avatar

L. Colas

University of Nantes

View shared research outputs
Researchain Logo
Decentralizing Knowledge