Design of Cathode Heater Assembly for High Power Gyrotron
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Abstract
A 3D model of dispenser cathode with toroid shape heater assembly is simulated using simulation software, ANSYS Multi-physics. The reported design study of cathode heater assembly of 1 MW 120 GHz gyrotron helps to optimize the input heater power with respect to cathode surface temperature. The simulation study shows that the input power depends strongly on the heater dimension as well as material properties including the potting material. The optimum input power helps to achieve desired current density (10 A/cm2) and cathode surface temperature (1000 °C). Further, the thermal and structural analyses are carried out to study the temperature distribution on the cathode assembly due to the heat dissipation and mechanical strength of the assembly.
©[2013] by Walter de Gruyter Berlin Boston
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Articles in the same Issue
- Masthead
- Cross-polarization Suppression in Monolayer Reflectarray Antennas
- Analysis of Probes in a Rectangular Waveguide
- FDTD Analysis of Chiral Metamaterials Slab by using the Auxiliary Differential Equation Algorithm
- Design of Cathode Heater Assembly for High Power Gyrotron
- Cross-layer Design for MIMO Systems with Transmit Antenna Selection and Imperfect CSI
- Frequency-selective Fading Simulator for Real-time Laboratory Measurements
- Outage Capacity of Spectrum Sharing Cognitive Radio with Channel Estimation Errors and Feedback Delay in Rayleigh Fading Environments
- Average Secrecy Rate Analysis using Decode-and-Forward Strategy in Cooperative Networks
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