.60 Ghz 500kw High Power Cyclotron Oscillation Tube Design And Simulation,

With the further research on all kinds of microwave components, they've been greatly applied and developed at the microwave band. When working frequency has been promoted at the band of millimeter and sub millimeter, for the deficiency both in structures and materials and working mechanisms, common microwave tubes are frustrated at this band for working, especially for enhancing the efficiency and output power. However, the emergence of gyro components breaks the traditional mechanism of microwave tubes and hence solves the problems and difficulties that have been encountered for long. The exploration and utilization at the band of millimeter and sub millimeter brings a promising future in vacuum electronics field and dramatically put this discipline forward as well.Compared with other microwaves, gyrotron has such merits as simple structure, acceptable volume and it also can generate high pulse power and continuous power by diverse ways at a wide frequency scope. At the aspects of researching the electromagnetic frequency diagram at band of millimeter, gyrotron also acts as a important role. Gyrotron possesses a promising potential in the research of radar, telecommunication, electronic antagonizing, controlled nucleus fusion, high power particle accelerator and ECRH so that it's received globally attention on its development and got a remarkable improvement.Form late 1960s on, its application on the experiments of controlled magnetic fusion facilitated the development on the long pulse and high power gyro oscillator. The selection of its working frequency depends on the magnetic field of fusion reactor for the power generated will be absorbed for the reason of electronic cycling resonance mechanism. Generally, in the magnetic field where the temperature is over one hundred thousand centigrade, the electrons tend to get out of the control from nucleus and form plasma. Now, Tokamak for the controlled magnetic fusion chooses to use auxiliary heating source. The character that gyro oscillator is able to generate extremely high power in a certain width of pulse makes it available for its application in Tokamak as a heating source. The pulse width of gyro oscillator is equal to the constraint time of plasma at the beginning. In modern Tokamak equipments, the constraint time can be seen as several seconds while in the future, several minutes or longer. Thus, continuous power gyro oscillator is inevitably required for being as the heating source of Tokamak.From the background that our country is developing the source for plasma heating, my research consequently carried out. In this paper, based on linear and non linear theory of gytron as well as the helping of computer programming calculation and simulation software, MAGIC, the threshold current, working magnetic field, working current, interaction efficiency and output power have been computed and the parameters for cavity have been selected, then through the simulation conducted by MAGIC, the parameters have been optimized after myriad experiments. Finally, a detail plan for the designing of 60GHz, 500kW gyro oscillator has been delivered.