Title :
Analytical calculation of anode current in relativistic magnetron
Author :
Andreev, Andrey D. ; Hendricks, Kyle J. ; Fuks, Mikhail I. ; Schamiloglu, Edl
Author_Institution :
Directed Energy Directorate, Air Force Res. Lab., Kirtland AFB, NM, USA
fDate :
June 28 2009-July 2 2009
Abstract :
An analytical expression for the anode current in a relativistic magnetron is derived. The anode current is described as the cathode-to-anode drift of the electron guiding centers in the crossed external dc and induced rf magnetic and electric fields. The drift of the electron guiding centers is analyzed in the frame of reference moving with the phase velocity of the induced rf electric field. The anode current determined by this drift is calculated under the assumption that the cathode of the relativistic magnetron operates in a space-charge-limited mode, where the external dc electric field at the cathode surface is zero.
Keywords :
anodes; cathodes; magnetrons; space-charge-limited conduction; analytical calculation; anode current; crossed external dc electric field; crossed external dc magnetic field; electron guiding center cathode-to-anode drift; frame of reference; induced rf electric field; induced rf magnetic field; phase velocity; relativistic magnetron; space-charge-limited mode; Anodes; Cathodes; Electron mobility; Frequency; Impedance; Laboratories; Magnetic analysis; Magnetic fields; Permeability; Voltage;
Conference_Titel :
Pulsed Power Conference, 2009. PPC '09. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-4064-1
Electronic_ISBN :
978-1-4244-4065-8
DOI :
10.1109/PPC.2009.5386328
