4/27/2023 0 Comments Define internal surfaces gmshThis was followed by validation of design parameters using 3D CST- Microwave Studio code. ![]() At first approximate dimensions of re-entrant cavities with desired RF parameters to be used in RF section were determined using a 2D SUPERFISH code. The thesis presents the design methodologies adopted and results of the study during the course of project. The present project has been taken up to study the design of RF section of 6MW, CW, S-Band Klystron tube which has a projected national requirement for high energy RF linear accelerators. High power CW Klystrons are widely used for advanced scientific applications such as high energy charged particle accelerator and plasma heating for nuclear fusion experiment. The experimental tests were performed at the laboratories of the National Institute for Space Research (INPE) and at the Institute for Advanced Studies (IEAv - CTA). These values for the Q-factor would allow the detector to reach the quantum limit of sensitivity of ~10-22 Hz-1/2 in the near future, making it possible to search for gravitational waves around 3.2 kHz. AC conductivity of the order of 1012 S/m has been found for niobium cavities when matching experimental results with computational simulations. These cavities were closed with a flat niobium plate with tantalum impurities below 1000 ppm and an unloaded electrical quality factors of the order of 105 have been obtained. Many cavities were manufactured from niobium with relatively high tantalum impurities (1420 ppm) and they were cryogenically tested to determine their resonance frequencies, unloaded electrical quality factors (Q0) and electromagnetic couplings. Translates input_entity itself by vector.The main purpose of this work is to optimize the electric Q-factor of superconducting niobium klystron cavities to be used in parametric transducers of the Mario Schenberg gravitational wave detector. synchronize ( ) ¶ translate ( obj, vector: Tuple ) ¶ Should contain four expressions giving the coefficients of the plane’s equation. Transforms all elementary entities symmetrically to a plane. save_geometry ( filename: str ) ¶ set_background_mesh ( *args, **kwargs ) ¶ set_mesh_size_callback ( fun, ignore_other_mesh_sizes=True ) ¶ set_recombined_surfaces ( surfaces ) ¶ set_transfinite_curve ( curve, num_nodes: int, mesh_type: str, coeff: float ) ¶ set_transfinite_surface ( surface, arrangement: str, corner_pts ) ¶ set_transfinite_volume ( volume, corner_pts ) ¶ symmetrize ( obj, coefficients: Tuple ) ¶ Rotation axis has to be specified.Ĭhanges the input object. mirror ( obj, abcd: Tuple ) ¶ remove ( obj, recursive: bool = False ) ¶ rotate ( obj, point: Tuple, angle: float, axis: Tuple ) ¶ Rotate input_entity around a given point with a given angle. ![]() Will conform to the mesh of the input entities. in_volume ( input_entity, volume ) ¶Įmbed the point(s)/curve(s)/surface(s) in the given volume. The surface mesh willĬonform to the mesh of the point(s) or curves(s). in_surface ( input_entity, surface ) ¶Įmbed the point(s) or curve(s) in the given surface. Return a meshio.Mesh, storing the mesh points, cells, and data, generated by generate_mesh ( dim: int = 3, order: Optional = None, algorithm: Optional = None, verbose: bool = False ) ¶ ![]() add_boundary_layer ( *args, **kwargs ) ¶ add_bspline ( *args, **kwargs ) ¶ add_circle_arc ( *args, **kwargs ) ¶ add_curve_loop ( *args, **kwargs ) ¶ add_ellipse_arc ( *args, **kwargs ) ¶ add_line ( *args, **kwargs ) ¶ add_physical ( entities, label: Optional = None ) ¶ add_plane_surface ( *args, **kwargs ) ¶ add_point ( *args, **kwargs ) ¶ add_polygon ( *args, **kwargs ) ¶ add_spline ( *args, **kwargs ) ¶ add_surface ( *args, **kwargs ) ¶ add_surface_loop ( *args, **kwargs ) ¶ add_volume ( *args, **kwargs ) ¶ copy ( obj ) ¶ dilate ( obj, x0: Tuple, abc: Tuple ) ¶ extrude ( input_entity, translation_axis: Tuple, num_layers: Union, None] = None, heights: Optional] = None, recombine: bool = False ) ¶Įxtrusion of any entity along a given translation_axis. Geometry base class containing all methods that can be shared between built-inĪnd occ.
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