The EU DEMO Tokamak will be equipped with an ECsystem for plasma heating and MHD (i.e. magnetohydrodynamic)control. Up to six launching antennas will be installed into equatorial ports with the aim to injectmaximum130 MW millimeter wave power at dedicated positions into the plasma. The mm-waves will be generated in gyrotrons placed in a distinct building at distant location. From this gyrotron hall, a combined transmission line system of quasi-optical multi-beam mirrors and individual wave guides will propagate the mm-waves into the tokamak building.That followed,an optical system, composed of mitre-bends, diamond windows, valves, and microwave bellows,connects the transmission line through the gallery and the port cell with the EC launchers. This paper presents the pre-conceptual CAD design of this section of the EC system. Based on its general scheme and the given wave guide trajectories,the model takes into account the available space in the port cell with respect to required clearance for supply systems, assembly and maintenance. At the pre-conceptual state, the design includes models of all relevant millimeter wave components in realistic dimensions at a level of details,appropriate to demonstrate the feasibility of the concept.
PRE-CONCEPTUAL DESIGN OF THE PORT CELL SECTION FOR THE EU DEMO EQUATORIAL EC SYSTEM
Bruschi A;Fanale F;Garavaglia S;
2021
Abstract
The EU DEMO Tokamak will be equipped with an ECsystem for plasma heating and MHD (i.e. magnetohydrodynamic)control. Up to six launching antennas will be installed into equatorial ports with the aim to injectmaximum130 MW millimeter wave power at dedicated positions into the plasma. The mm-waves will be generated in gyrotrons placed in a distinct building at distant location. From this gyrotron hall, a combined transmission line system of quasi-optical multi-beam mirrors and individual wave guides will propagate the mm-waves into the tokamak building.That followed,an optical system, composed of mitre-bends, diamond windows, valves, and microwave bellows,connects the transmission line through the gallery and the port cell with the EC launchers. This paper presents the pre-conceptual CAD design of this section of the EC system. Based on its general scheme and the given wave guide trajectories,the model takes into account the available space in the port cell with respect to required clearance for supply systems, assembly and maintenance. At the pre-conceptual state, the design includes models of all relevant millimeter wave components in realistic dimensions at a level of details,appropriate to demonstrate the feasibility of the concept.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
