Zobrazeno 1 - 10
of 225
pro vyhledávání: '"A.M. Messiaen"'
Autor:
D.V. Sarychev, A.M. Messiaen, N. V. Kas’yanova, N. A. Soloviev, N. A. Kirneva, J. Ongena, M. V. Chukanov, G. E. Notkin, S. V. Krylov, L. A. Klyuchnikov, V. A. Krupin, S. E. Lysenko, K. A. Razumova, M. M. Dremin
Publikováno v:
Plasma Physics Reports. 46:337-348
The phenomenon of improved energy confinement during radiative cooling at the plasma edge was studied experimentally in the T-10 tokamak. It was shown that the effect is independent on the kind of radiating gas. No substantial differences were observ
Publikováno v:
THE 6TH INTERNATIONAL CONFERENCE ON BIOLOGICAL SCIENCE ICBS 2019: “Biodiversity as a Cornerstone for Embracing Future Humanity”.
A set of Traveling Wave antenna (TWA) sections has been proposed for the ICRF heating of the reactor in view to decrease the antenna power density. The reduction of the antenna voltage and associate electric field and current is compensated by the nu
Publikováno v:
THE 6TH INTERNATIONAL CONFERENCE ON BIOLOGICAL SCIENCE ICBS 2019: “Biodiversity as a Cornerstone for Embracing Future Humanity”.
A multi-section Traveling Wave Antenna (TWA) is one of the presently proposed options for Ion Cyclotron Resonance Heating (ICRH) of DEMO. This option would reduce the antenna power density while enabling sufficient heating in low coupling situations
Publikováno v:
EPJ Web of Conferences, Vol 157, p 03031 (2017)
Detailed designs of ICRF antennas were made possible by the development of sophisticated commercial 3D codes like CST Microwave Studio® (MWS). This program allows for very detailed geometries of the radiating structures, but was only considering sim
Autor:
Riccardo Ragona, A.M. Messiaen
Publikováno v:
Fusion Engineering and Design
The main advantages of ICRH&CD are its ability to achieve power deposition in the center of the plasma column without any density limit along with direct heating of plasma ions. The challenge is then to couple large amount of power through the plasma
Publikováno v:
Fusion Engineering and Design. 88:1030-1033
The ITER ICRH load resilient matching system uses four 3 dB hybrid couplers. A prematching system is used near the antenna plug to reduce the line voltage up to the decoupling and matching system which is located in the Assembly Hall. The decoupling
Publikováno v:
Fusion Engineering and Design. 88:501-506
The eight triplets of straps of the ITER ICRF antenna array are fed through 8 matching circuits and 4 hybrids to ensure load resilience. Decouplers are used to mitigate the effects of triplet mutual coupling. They also control the array phasing. The
Publikováno v:
Fusion Engineering and Design. 88:922-925
To avoid the excitation of modes in the 20 mm clearance gap between the ITER ICRH antenna plug and the vacuum vessel in the ITER frequency band it was proposed to perform galvanic grounding at 1 m from the antenna plug front. Experimental S-matrix an
Publikováno v:
Fusion Engineering and Design. 87:167-178
The hybrid option has been chosen for the load-resilient matching of the ITER ICRH system. The corresponding 3 dB hybrid matching circuit has been developed and fully implemented on a low-powered scaled mock-up at the LPP-ERM/KMS. The circuit feature
Autor:
Pierre Dumortier, A.M. Messiaen
Publikováno v:
Jülich : Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag, Schriften des Forschungszentrums Jülich Reihe Energie & Umwelt / Energy & Environment 298, 331-338 (2015).
12th Carolus Magnus Summer School on Plasma and Fusion Energy Physics, CMSS12, Leuven, Belgium, 2015-08-24-2015-09-04
Scopus-Elsevier
12th Carolus Magnus Summer School on Plasma and Fusion Energy Physics, CMSS12, Leuven, Belgium, 2015-08-24-2015-09-04
Scopus-Elsevier
RF heating and current drive in the ion cyclotron frequency range is widely used on existing machines and is planned on ITER. After a brief reminder of transmission line theory concepts the paper i...