Accession Number : ADD011666

Title :   Quasioptical Gyroklystron.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Manheimer,W M ; Ott,E ; Bondeson,A

Report Date : 01 Jan 1985

Pagination or Media Count : 5

Abstract : A quasioptical gyroklystron for generating high power quasioptical (millimeter) radiation. A mildly relativistic electron beam gyrating in a static magnetic field is passed through a first open mirror resonator where a small change in the transverse electron energy takes place (either an increase or decrease depending on the relative phase between the electron gyration and the resonator wave fields). This small change than leads to slower (or more rapid) gyration of those electrons that have gained (or lost) energy in the first resonator. The length of the drift region between the first and a second open mirror resonator is adjusted so that rapidly gyrating electrons overtake slowly gyrating ones at the entrance to the second resonator. Thus the particles arrive at the second resonator strongly bunched in gyration phase. The fields in the first resonator are generated by feedback of a small amount of energy from the wave mode in the second resonator with pi/2 phase lag so that the beam entering the second resonator is bunched at the right phase angle to lose power efficiently to the fields in the second resonator. The lost power is extracted and guided to a utilization device.

Descriptors :   *PATENTS, *KLYSTRONS, *ELECTRON BEAMS, MAGNETIC FIELDS, RELATIVITY THEORY, HIGH POWER, RIGHT ANGLES, FEEDBACK, GYRATORS, STATICS, WAVES, INVENTIONS, UTILIZATION, STATISTICS, ELECTRONS, PHASE, RESONATORS, TRANSVERSE WAVES, MIRRORS, ANGLES

Subject Categories : Electrical and Electronic Equipment
      Particle Accelerators

Distribution Statement : APPROVED FOR PUBLIC RELEASE