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Multipactor in High Power Radio-Frequency Systems for Nuclear Fusion

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Academic year: 2021

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Figure

Fig. 1. WEST Tokamak ICRH antenna mechanical and electrical design. The plasma (not illustrated) is facing the antenna at  the left part of the Fig
Fig.  2.  Left:  Power  Threshold  in  a  coaxial  line  at  50  MHz  calculated  with  Spark3D  versus  gap  between  inner  and  outer  electrodes  (with  fixed  outer  diameter  153  mm)  (Spark3D  ECSS  Copper  SEY  definition).Right:  Number  of  elec
Fig. 3. Left: One of the WEST Tokamak LHCD antenna. Right: detail of one multijunction module (1/48 of the antenna)
Fig. 5. Multipactor power threshold for a 70x8mm waveguide at 3.7 GHz versus DC magnetic field parallel to the large side

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