1 ScopeBased on the analysis done and presented on the report ITER_D_KQQ5WJ, this report ispresenting the analysis of the PG filter feedthrough and the RF line feedthrough. The loadsapplied are coming from reaction forces calculated on the ITER_D_KQQ5WJ.2 System description2.1 System, Components, Sub-componentsThe neutral beam (NB) system for ITER consists of two heating and current drive (H&CD) NBinjectors and a diagnostic neutral beam (DNB) injector. The layout allows a possible thirdH&CD injector to be installed later. These NB injectors will be connected to equatorial ports#4 - #6 for the H&CD NBs. The DNB shares port #4 with the H&CD NB. The injectors will belocated outside the cryostat inside a common enclosure, the NB cell, on north side of theTokamak building. As they are directly coupled to the ITER vacuum vessel, the injectors areextensions of the primary confinement barrier of radioactive materials coming from thevacuum vessel.Figure 1: Isometric view of the NB cell2.2 HVB general descriptionThe High Voltage Bushing (HVB) is installed just above the beam source vessel (BSV) as aconnecting terminal between BS and -1MV transmission line-3 (TL3). It provides -1MVpotential feedthrough between 0.6 MPa SF6 in the TL3 and the primary vacuum in the BSV.
1 Scope<br>Based on the analysis done and presented on the report ITER_D_KQQ5WJ, this report is<br>presenting the analysis of the PG filter feedthrough and the RF line feedthrough. The loads<br>applied are coming from reaction forces calculated on the ITER_D_KQQ5WJ.<br>2 System description<br>2.1 System, Components, Sub-components<br>The neutral beam (NB) system for ITER consists of two heating and current drive (H&CD) NB<br>injectors and a diagnostic neutral beam (DNB) injector. The layout allows a possible third<br>H&CD injector to be installed later. These NB injectors will be connected to equatorial ports<br>#4 - #6 for the H&CD NBs. The DNB shares port #4 with the H&CD NB. The injectors will be<br>located outside the cryostat inside a common enclosure, the NB cell, on north side of the<br>Tokamak building. As they are directly coupled to the ITER vacuum vessel, the injectors are<br>extensions of the primary confinement barrier of radioactive materials coming from the<br>vacuum vessel.<br>Figure 1: Isometric view of the NB cell<br>2.2 HVB general description<br>The High Voltage Bushing (HVB) is installed just above the beam source vessel (BSV) as a<br>connecting terminal between BS and -1MV transmission line-3 (TL3). It provides -1MV<br>potential feedthrough between 0.6 MPa SF6 in the TL3 and the primary vacuum in the BSV.
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