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Overview of the TCV tokamak program: scientific progress and facility upgrades
- Source :
- Coda , S , Ahn , J , Albanese , R , Alberti , S , Alessi , E , Allan , J S , Anand , H , Anastassiou , G , Andrèbe , Y , Angioni , C , Ariola , M , Bernert , M , Beurskens , M , Bin Najib , W , Blanchard , P , Blanken , T C , Boedo , J A , Bolzonella , T , Bouquey , F , Braunmüller , F H , Bufferand , H , Buratti , P , Calabró , G , Camenen , Y , Carnevale , D , Carpanese , F , Causa , F , Cesario , R , Chapman , I T , Chellai , O , Choi , D-Y , Cianfarani , C , Ciraolo , G , Citrin , J , Costea , S , Crisanti , F , Cruz , N , Czarnecka , A , Decker , J , De Masi , G , De Tommasi , G , Douai , D , Dunne , M , Duval , B P , Eich , T , Elmore , S , Esposito , B , Faitsch , M , Fasoli , A , Fedorczak , N , Felici , F , Février , O , Ficker , O , Fietz , S , Fontana , M , Frassinetti , L , Furno , I , Galeani , S , Gallo , A , Galperti , C , Garavaglia , S , Garrido , I , Geiger , B , Giovannozzi , E , Gobbin , M , Goodman , T P , Gorini , G , Gospodarczyk , M , Granucci , G , Graves , J P , Guirlet , R , Hakola , A H , Ham , C , Harrison , J , Hawke , J , Hennequin , P , Hnat , B , Hogeweij , G M D , Hogge , J -P , Honoré , C , Hopf , C , Horáček , J , Huang , Z , Igochine , V , Innocente , P , Schrittwieser , C I , Isliker , H , Jacquier , R , Jardin , A , Kamleitner , J , Karpushov , A , Keeling , D L , Kirneva , N , Kong , M , Koubiti , M , Kovacic , J , Krämer-Flecken , A , Krawczyk , N , Kudlacek , O , Labit , B , Lazzaro , E , Le , H B , Lipschultz , B , Llobet , X , Lomanowski , B , Loschiavo , V P , Lunt , T , Maget , P , Maljaars , E , Malygin , S A , Maraschek , M , Marini , C , Martin , P , Martin , Y , Mastrostefano , S , Maurizio , R , Mavridis , M , Mazon , D , McAdams , R , McDermott , R , Merle , A , Meyer , H , Militello , F , Miron , I G , Molina Cabrera , P A , Moret , J-M , Del Moro , A , Moulton , D , Naulin , V , Nespoli , F , Nielsen , A H , Nocente , M , Nouailletas , R , Nowak , S , Odstrčil , T , Papp , G , Papřok , R , Pau , A , Pau
- Publication Year :
- 2017
-
Abstract
- The TCV tokamak is augmenting its unique historical capabilities (strong shaping, strong electron heating) with ion heating, additional electron heating compatible with high densities, and variable divertor geometry, in a multifaceted upgrade program designed to broaden its operational range without sacrificing its fundamental flexibility. The TCV program is rooted in a three-pronged approach aimed at ITER support, explorations towards DEMO, and fundamental research. A 1 MW, tangential neutral beam injector (NBI) was recently installed and promptly extended the TCV parameter range, with record ion temperatures and toroidal rotation velocities and measurable neutral-beam current drive. ITER-relevant scenario development has received particular attention, with strategies aimed at maximizing performance through optimized discharge trajectories to avoid MHD instabilities, such as peeling-ballooning and neoclassical tearing modes. Experiments on exhaust physics have focused particularly on detachment, a necessary step to a DEMO reactor, in a comprehensive set of conventional and advanced divertor concepts. The specific theoretical prediction of an enhanced radiation region between the two X-points in the low-field-side snowflake-minus configuration was experimentally confirmed. Fundamental investigations of the power decay length in the scrape-off layer (SOL) are progressing rapidly, again in widely varying configurations and in both D and He plasmas; in particular, the double decay length in L-mode limited plasmas was found to be replaced by a single length at high SOL resistivity. Experiments on disruption mitigation by massive gas injection and electron-cyclotron resonance heating (ECRH) have begun in earnest, in parallel with studies of runaway electron generation and control, in both stable and disruptive conditions; a quiescent runaway beam carrying the entire electrical current appears to develop in some cases. Developments in plasma control have benefited from pr
Details
- Database :
- OAIster
- Journal :
- Coda , S , Ahn , J , Albanese , R , Alberti , S , Alessi , E , Allan , J S , Anand , H , Anastassiou , G , Andrèbe , Y , Angioni , C , Ariola , M , Bernert , M , Beurskens , M , Bin Najib , W , Blanchard , P , Blanken , T C , Boedo , J A , Bolzonella , T , Bouquey , F , Braunmüller , F H , Bufferand , H , Buratti , P , Calabró , G , Camenen , Y , Carnevale , D , Carpanese , F , Causa , F , Cesario , R , Chapman , I T , Chellai , O , Choi , D-Y , Cianfarani , C , Ciraolo , G , Citrin , J , Costea , S , Crisanti , F , Cruz , N , Czarnecka , A , Decker , J , De Masi , G , De Tommasi , G , Douai , D , Dunne , M , Duval , B P , Eich , T , Elmore , S , Esposito , B , Faitsch , M , Fasoli , A , Fedorczak , N , Felici , F , Février , O , Ficker , O , Fietz , S , Fontana , M , Frassinetti , L , Furno , I , Galeani , S , Gallo , A , Galperti , C , Garavaglia , S , Garrido , I , Geiger , B , Giovannozzi , E , Gobbin , M , Goodman , T P , Gorini , G , Gospodarczyk , M , Granucci , G , Graves , J P , Guirlet , R , Hakola , A H , Ham , C , Harrison , J , Hawke , J , Hennequin , P , Hnat , B , Hogeweij , G M D , Hogge , J -P , Honoré , C , Hopf , C , Horáček , J , Huang , Z , Igochine , V , Innocente , P , Schrittwieser , C I , Isliker , H , Jacquier , R , Jardin , A , Kamleitner , J , Karpushov , A , Keeling , D L , Kirneva , N , Kong , M , Koubiti , M , Kovacic , J , Krämer-Flecken , A , Krawczyk , N , Kudlacek , O , Labit , B , Lazzaro , E , Le , H B , Lipschultz , B , Llobet , X , Lomanowski , B , Loschiavo , V P , Lunt , T , Maget , P , Maljaars , E , Malygin , S A , Maraschek , M , Marini , C , Martin , P , Martin , Y , Mastrostefano , S , Maurizio , R , Mavridis , M , Mazon , D , McAdams , R , McDermott , R , Merle , A , Meyer , H , Militello , F , Miron , I G , Molina Cabrera , P A , Moret , J-M , Del Moro , A , Moulton , D , Naulin , V , Nespoli , F , Nielsen , A H , Nocente , M , Nouailletas , R , Nowak , S , Odstrčil , T , Papp , G , Papřok , R , Pau , A , Pau
- Notes :
- application/pdf, English
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1007882174
- Document Type :
- Electronic Resource