Blower Gun pellet injection system for W7-X
نویسندگان
چکیده
منابع مشابه
Lithium Pellet Injection Experiments
A pellet enhanced performance (PEP) mode, showing significantly reduced core transport, is regularly obtained after the injection of deeply penetrating lithium pellets into Alcator C-Mod discharges. These transient modes, which typically persist about two energy confinement times, are characterized by a steep pressure gradient (4, <a/5) in the inner third of the plasma, indicating the presence ...
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The W7-X Experiment of the IPP, under construction in Greifswald Germany, is designed to operate in a quasi-steady-state scenario. The database structures and interfaces used for discharge description and execution have to reflect this continuous mode of operation. In close collaboration between the control group of W7-X and the data acquisition group a combined design of the data structures us...
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The Compact Ignition Tokamak (CIT) will use an advanced, high-velocity pellet injection system to achieve and maintain ignited plasmas. Two pellet injectors are provided: a moderate-velocity (1 to 1 S-km/s), single-stage pneumatic injector with high reliability and a high-velocity (4to 5-km/s), two-stage pellet injector that uses frozen hydrogenic pellets encased in sabots. Both pellet injector...
متن کاملTomography by the maximum entropy method for the W7-AS and W7-X multichannel bolometer systems
Amaximum entropy approach has been applied to the tomographic inversion of the line integrated measurements of radiation power ux by a multichannel bolometer system. This method was applied to a H-mode discharge in the W7-AS stellarator, with increasing radiation from the plasma core after the transition being observed. Also a neutral beam injection discharge was investigated, and the time evol...
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We report measurements of the azimuthal emission nonuniformity of a gyrotron's thermionic cathode as determined from two experiments, one which determines the total emission and one which scans the emitted beam using a rotating probe. In the total emission experiment, which measured the total collector current over a range of voltages, the cathode's total work function spread was found to be 0....
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ژورنال
عنوان ژورنال: Fusion Engineering and Design
سال: 2015
ISSN: 0920-3796
DOI: 10.1016/j.fusengdes.2015.01.050