A compact coaxial cusped periodic permanent magnet for a coaxial relativistic Čerenkov generator
A prototype of an integrated coaxial cusped periodic permanent magnet (CPPM) system is put forward and optimized. The guiding magnetic field strength and period of the CPPM are 0.32 T and 30 mm, respectively, and the whole focusing system is 240 mm long, with a maximum diameter of 170 mm and total w...
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Veröffentlicht in: | Physics of plasmas 2020-08, Vol.27 (8) |
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Hauptverfasser: | , , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | A prototype of an integrated coaxial cusped periodic permanent magnet (CPPM) system is put forward and optimized. The guiding magnetic field strength and period of the CPPM are 0.32 T and 30 mm, respectively, and the whole focusing system is 240 mm long, with a maximum diameter of 170 mm and total weight of under 30 kg. Using this focusing system, an oversized Ku-band coaxial relativistic Čerenkov generator is proposed and investigated. Particle-in-cell simulation shows that the microwave with an output power of 830 MW at 15.29 GHz is achieved, yielding a conversion efficiency of 37%. The feasibility of CPPM applications in high power microwave (HPM) generation is confirmed, providing a new technical route for small, lightweight HPM generators. |
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ISSN: | 1070-664X 1089-7674 |
DOI: | 10.1063/5.0014102 |