Results 31 to 40 of about 1,925 (143)

Elevation angle alignment of quasi optical receiver mirrors of collective Thomson scattering diagnostic by sawtooth measurements [PDF]

, 2012
Localized measurements of the fast ion velocity distribution function and the plasma composition measurements are of significant interest for the fusion community.
Bindslev, Henrik, Furtula, V., Kantor, M., Korsholm, Søren Bang, Leipold, Frank, Meo, Fernando, Michelsen, Poul, Moseev, D., Nielsen, Stefan Kragh, Salewski, Mirko, Stejner Pedersen, Morten   +10 more
core   +2 more sources

Broadening of electron cyclotron power deposition and driven current profiles caused by dissipative diffractive propagation

Nuclear Fusion
Improvements in electron cyclotron resonance heating (ECRH) and current drive (ECCD) predictions are important issues for the design and control of high-performance fusion plasmas in future devices, where these should play a more important role as ...
K. Yanagihara, S. Kubo
doaj   +1 more source

Cryogenic requirements for the JT-60SA Tokamak [PDF]

AIP Conference Proceedings, 2012
The superconducting tokamak JT-60SA is part of the Broader Approach Programmeagreed between Japan and Europe. CEA is in charge of the cryogenic system procurementincluding the Warm Compression Station, the gas storages, the Refrigerator Cold Box andthe Auxiliary Cold Box (ACB) which has to be installed on the JAEA Naka site in 2016.This paper ...
Michel, Frederic, Hitz, D., Hoa, Christine, Lamaison, Valerie, Kamiya, Koji, Roussel, Pascal, Wanner, Manfred, Yoshida, Kiyoshi   +7 more
openaire   +2 more sources

大型ヘリカル装置計画から [PDF]

, 2011
大型ヘリカル装置（LHD）実験の最近の成果を中心に紹介するとともに，原点からの経緯を振り返り，将来の展望について述べる．また，共同研究を骨子とした実験体制と国際的・学際的連携についても触れる．LHD実験では本体・加熱などのハードウェアの整備とプラズマ物理学上の発見が相乗的に研究を加速している．プラズマ性能を向上させる内部拡散障壁，高イオン温度をもたらす改善モードなどの発見，非局所輸送，共鳴摂動磁場への多様なプラズマの応答などに新しい知見が開かれてきている．精密な計測機器の整備によって ...
山田 弘司
core  

Real-time disruption prediction in multi-dimensional spaces leveraging diagnostic information not available at execution time

Nuclear Fusion
This article describes the use of privileged information to train supervised classifiers, applied for the first time to the prediction of disruptions in tokamaks.
J. Vega, S. Dormido-Canto, R. Castro, J.D. Fernández, A. Murari, JET Contributors   +5 more
doaj   +1 more source

Effects of non-rigidity on fast plasma boundary control using in-vessel coils in JT-60SA

Nuclear Fusion
An effective fast plasma position control (FPPC) method using in-vessel poloidal field coils and capable of maintaining high-elongation plasma, and hence high vertical instability growth, was developed utilizing an magneto-hydrodynamic equilibrium ...
Shinichiro Kojima, Shizuo Inoue, Yoshiaki Miyata, Hajime Urano, Takahiro Suzuki   +4 more
doaj   +1 more source

Experimental demonstration of advanced ISO-FLUX equilibrium control during the first JT-60SA operational phase under DEMO-relevant conditions

Nuclear Fusion
In the control of large superconducting tokamaks, particularly for devices like DEMO reactors, where no stabilizing plates or in-vessel coils can be mounted due to the existence of tritium breeding blankets, position, shape, and current of plasmas must ...
S. Inoue, Y. Miyata, S. Kojima, M. Takechi, R. Sano, T. Wakatsuki, H. Urano, M. Yoshida, T. Suzuki, the JT-60SA Integrated Project Team   +9 more
doaj   +1 more source

Gyrokinetic simulations of the core turbulence in the reference JT-60SA scenario

Nuclear Fusion
Linear and nonlinear local gyrokinetic simulations of the high power high current JT-60SA scenario are presented, based on inputs from predictive transport modelling.
O. Krutkin, S. Brunner, S. Coda, M.J. Pueschel   +3 more
doaj   +1 more source

Predictive integrated modelling of the hybrid and baseline scenarios of JT-60SA in view of the second operational phase

Nuclear Fusion
The integrated modelling of two plasma scenarios, hybrid and baseline, envisaged for the second operational phase (OP2) of the JT-60SA tokamak has been performed using the 1.5-dimensional JINTRAC suite of codes and the Bohm/gyro-Bohm (BgB) semi-empirical
S. Gabriellini, V.K. Zotta, L. Garzotti, N. Aiba, J.-F. Artaud, G. Giruzzi, G. Pucella, C. Sozzi, D. Taylor, T. Wakatsuki, L. Burla, C. Leoni, R. Gatto, the JT-60SA integrated project team   +13 more
doaj   +1 more source

Promising cooling concepts for enhanced JT-60SA tungsten actively cooled divertor

Nuclear Materials and Energy
To propose enhanced concepts for the JT-60SA tungsten target divertor able to withstand heat loads higher than 20 MW/m2, this paper investigates the flat tile design (flat junction between tungsten armour material and heat sink) using additively ...
D. Dias Aleixo, M. Firdaouss, T. Baffie, P.-E. Frayssines, H. Gleyzes, P. Lechevalier, H. Roche, E. Tejado, A. Thomas, V. Tomarchio, M. Richou   +10 more
doaj   +1 more source