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- Title
High-Power Spatially Extended Free-Electron Masers with Three-Dimensional Distributed Feedback.
- Authors
Peskov, N. Yu.; Egorova, E. D.; Ginzburg, N. S.; Sergeev, A. S.; Arzhannikov, A. V.; Sinitsky, S. L.
- Abstract
We study the possibility of using Bragg resonators that implement a three-dimensional distributed feedback mechanism ensuring synchronization of radiation and mode selection under conditions of substantial oversize in three spatial coordinates. To describe the electron–wave interaction in devices of this type, a three-dimensional spatiotemporal averaged model was developed within the framework of the coupled wave approach. On this basis, a planar free-electron maser (FEM) driven by a full-scale electron beam of a sheet configuration with a particle energy of 1 MeV, a current of up to 140 kA, and a cross section of about 1 × 140 cm, which is formed using a high-current accelerating complex U-2 (BINP RAS), was simulated. The possibility of achieving a stable narrow-band oscillation regime in FEMs with a multi-gigawatt power level in the W band with transverse sizes of the proposed resonators from tens to hundreds of radiation wavelengths is demonstrated.
- Subjects
MASERS; ELECTRON beams; RESONATORS; RADIATION
- Publication
Radiophysics & Quantum Electronics, 2023, Vol 66, Issue 7/8, p521
- ISSN
0033-8443
- Publication type
Article
- DOI
10.1007/s11141-024-10312-z