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New trends of gyrotron development at KIT: An overview on recent investigations
摘要: Since many years KIT is strongly involved in the development of high power gyrotrons for use in ECRH. KIT is pursuing two development lines: (i) the conventional, hollow cavity gyrotron and (ii) the coaxial cavity gyrotron. KIT is pushing conventional cavity gyrotrons from 1 MW to 1.5 MW in a common project with IPP Greifswald. Coaxial cavity technology having the advantage of higher power capability, in particular at higher frequency, is used for the 2 MW 170 GHz short-pulse prototype. This gyrotron is currently being upgraded to allow pulse extension up to approximately 100 ms and up to 1 s in a second step. For a future DEMOnstration fusion power plant two challenging trends with respect to gyrotron features are recognized: (a) the operating frequency will be above 200 GHz and (b) the requested total efficiency of the gyrotron should be higher than 60%. KIT is addressing these requirements by investigating both gyrotron technologies for their performance at a frequency well above 200 GHz. We started careful analysis of multi-staged-depressed collectors.
关键词: Electron-cyclotron-resonance heating and current drive,Gyrotron,Coaxial cavity,Magnetron injection gun
更新于2025-09-23 15:23:52
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[IEEE 2017 14th IEEE India Council International Conference (INDICON) - Roorkee (2017.12.15-2017.12.17)] 2017 14th IEEE India Council International Conference (INDICON) - Design of a Magnetron Injection Gun for a 4 MW, 170 GHz, Coaxial Cavity Gyrotron
摘要: In this paper, design of a Magnetron Injection Gun (MIG) for a 4 MW, 170 GHz coaxial cavity gyrotron is presented. The operating mode is chosen as TE52,31. A triode configured coaxial MIG is designed for the generation of the annular electron beam with the desired beam parameters. The supporting magnetic guidance system is also designed. The initial gun design parameters are obtained using our in-house code Gyrotron Design Suite version 4.1 2016 (GDSv4.1 2016) and the geometry of the MIG is finally optimized through particle trajectory code ESRAY.
关键词: Coaxial Cavity Gyrotron,Magnetron Injection Gun (MIG),Magnetic Guidance System
更新于2025-09-09 09:28:46