Development of High-Power Microwave Sources Based on Induction Linear Accelerator
Final Rept. 1 May 2005-30 Apr 2006
NAGAOKA UNIV OF TECHNOLOGY (JAPAN) EXTREME ENERGY DENSITY RESEARCH INST
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Experimental and simulation studies of antenna-amplifier and relativistic magnetron are being carried out in Nagaoka University of Technology Japan and Nuclear Physics Institute Russia, as an international collaboration. The objective of these studies is to carry out experimental demonstration of antenna-amplifier and to perform experimental and simulation studies of relativistic magnetron with transparent cathode. The new concept of hybrid antenna-amplifier has been studied by three-dimensional particle-in-cell simulation and by experiment using linear induction accelerator. The simulations were carried out in Nagaoka University of Technology and the experiments were performed in Nuclear Physics Institute. The simulation results have shown expected beam-field interaction and microwave amplification, while the experiments have studied the electron beam propagation and dielectric rod material effects. These results have indicated the practicability of antenna-amplifier as a high-power microwave generator. The relativistic magnetron has been studied in Nagaoka University of Technology by using repetitive pulsed power generator ETIGO-IV 400 kV, 13 kA, 150 ns. The intention is to demonstrate the rapid start of microwave oscillation in relativistic magnetron with transparent cathode, which was proposed and studied with numerical simulations by researchers at the University of New Mexico. The magnetron electrodes were designed and manufactured based on the results of simulation investigations. The experimental system assembling and testing are present being carried out. The experimental results will be summarized in the near future.
- Particle Accelerators
- Radiofrequency Wave Propagation