Numerical design of 120 GHz, 1 MW gyrotron interaction cavity |
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Authors: | Nitin Kumar Udaybir Singh Anil Kumar AK Sinha |
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Institution: | Gyrotron Laboratory, Microwave Tube Area, Central Electronics Engineering Research Institute (CEERI), A Constituent Laboratory of Council of Scientific and Industrial Research, CSIR, Pilani, Rajasthan 333 031, India |
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Abstract: | The design and the numerical simulation of the interaction cavity for 120 GHz, 1 MW gyrotron is presented. The optimizations of the cavity parameters are carried out by using the Particle-in-Cell, 3D-electromagnetic simulation code MAGIC. The co-rotating TE22,6 mode is selected by using the in-house developed code GCOMS. The cold cavity and the beam–wave interaction analyses are carried out to analyze the eigenmode, eigenfrequency and the output power performance. The output power more than 1 MW is achieved at the magnetic field of 4.82 T. The sensitivity analyses of the output power and the frequency with respect to the various interaction cavity parameters are also performed. |
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Keywords: | Gyrotron Interaction cavity Beam&ndash wave interaction Eigenmode analysis |
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