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作者:G. Fuchert , J. Geiger ...
来源:[J].Fusion Engineering and Design(IF 0.842), 2019, Vol.146, pp.299-302Elsevier
摘要:Abstract(#br)Wendelstein 7-X (W7-X) is a modular advanced stellarator, which successfully went into operation in December 2015 at the Max-Planck-Institut für Plasmaphysik in Greifswald, Germany, and continued to thrive at the experimental campaign with the first divertor pha...
作者:G. Fuchert , A. Bernhard ...
来源:[J].Nuclear Inst. and Methods in Physics Research, A(IF 1.142), 2012, Vol.672, pp.33-37Elsevier
摘要:Abstract(#br)During the last years the electron beams produced by Laser-Plasma Accelerators were used for the first time to generate synchrotron radiation in an undulator. Both the emittance and especially the energy spread of a laser plasma accelerator beam are significantly lar...
作者:G. Fuchert , S.A. Bozhenkov ...
来源:[J].Nuclear Fusion(IF 2.734), 2018, Vol.58 (10)IOP
摘要:Global confinement properties of the limiter plasmas of the first operational campaign of W7-X are investigated with special focus on the energy confinement and possible operational limits. The energy confinement time was found to be close to expectations from the empirical ISS04...
作者:G. Fuchert , J. Geiger ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (6)IOP
摘要:For the first operation phase of the optimized stellarator W7-X, a heterodyne poloidal correlation reflectometry diagnostic is installed and put into operation. The system is intended to measure the perpendicular (with respect to the magnetic field) turbulence rotation and t...
作者:G. Fuchert , T. Andreeva ...
来源:[J].Nuclear Fusion(IF 2.734), 2018, Vol.58 (9)IOP
摘要:The magnetic diagnostic system at the Wendelstein 7-X stellarator includes three diamagnetic loops to measure magnetic flux changes in the plasma. Their signals are directly related to the plasma energy. The diagnostic design with respect to materials, component cooling and ...
作者:G. Fuchert , M. Hirsch ...
来源:[J].Nuclear Fusion(IF 2.734), 2019, Vol.59 (7)IOP
摘要:Plasma terminating events due to excess pellet fueling and impurity injection is studied in the Large Helical Device, Wendelstein 7-X and TJ-II. Time scales for these events range from values of a decimal fraction of typical energy confinement times to the order of the energy con...
作者:G. Fuchert , M. Groth ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (5)IOP
摘要:A summary of recent results on filamentary transport, mostly obtained with the ASDEX-Upgrade tokamak (AUG), is presented and discussed in an attempt to produce a coherent picture of scrape-off layer (SOL) filamentary transport. A clear correlation is found between L-mode density ...
作者:G. Fuchert , O. Grulke ...
来源:[J].Nuclear Fusion(IF 2.734), 2019, Vol.59 (4)IOP
摘要:The transport of heavy impurities has been investigated at the Wendelstein 7-X stellarator during core electron root confinement (CERC) experiments. Iron atoms were injected via the laser blow-off technique and analyzed by VUV and x-ray spectrometers. The injected amount of iron ...
作者:G. Fuchert , B. Geiger ...
来源:[J].Nuclear Fusion(IF 2.734), 2019, Vol.59 (11)IOP
摘要:The optimized superconducting stellarator device Wendelstein 7-X (with major radius , minor radius , and plasma volume) restarted operation after the assembly of a graphite heat shield and 10 inertially cooled island divertor modules. This paper reports on the results from the f...
作者:G. Fuchert , M. Griener ...
来源:[J].Nuclear Fusion(IF 2.734), 2019, Vol.59 (7)IOP
摘要:Blob transport properties in the plasma edge in the presence and absence of radio-frequency (RF) convective cells are compared. For the first time, the interactions between RF convective cells and intermittent plasma blobs in the scrape-off layer (SOL) are observed with gas puff ...

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