Three Dimensional PIC Simulations of the Transparent and Eggbeater Cathodes in the Michigan Relativistic Magnetron

Author

Fleming, T. ; Mardahl, P. ; Bowers, L. ; Bosman, H. ; Prasad, S. ; Fuks, M. ; Schamiloglu, E.

Author_Institution

Air Force Res. Lab.

fYear

0

fDate

0-0 0

Firstpage

345

Lastpage

346

Abstract

A novel relativistic magnetron priming technique consisting of either a main center cathode and several satellite cathodes (eggbeater design) or just the satellite cathodes (transparent cathode design [Fuks and Schamilogru, 2005]) is investigated using the three-dimensional electromagnetic, particle in cell code ICEPIC. Both these cathode designs rely on RF field penetration into the cathode region to enhance performance. This priming technique is thought to allow for larger amplitudes of the synchronous E_thetas field in the electron hub region which in turn hastens the capture of electrons into spokes. This technique effectively eliminates mode competition with the Pi mode amplitude dominating the other modes by at least a factor of 25

Keywords

cathodes; magnetrons; 3D PIC simulations; ICEPIC; Michigan relativistic magnetron; RF field penetration; cathode designs; eggbeater cathodes; particle in cell code; relativistic magnetron priming technique; satellite cathodes; transparent cathodes; Cathodes; Electrons; Laboratories; Magnetic field measurement; Magnetic fields; Plasma accelerators; Power generation; Radio frequency; Satellites; Strips;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2006 held Jointly with 2006 IEEE International Vacuum Electron Sources., IEEE International

Conference_Location

Monterey, CA

Print_ISBN

1-4244-0108-9

Type

conf

DOI

10.1109/IVELEC.2006.1666325

Filename

1666325