Stable operating regime for traveling wave devices

Patent · Tue Jan 11 04:00:00 EST 2000

OSTI ID:20013923

Carlsten, B E

Autophase stability is provided for a traveling wave device (TWD) electron beam for amplifying an RF electromagnetic wave in walls defining a waveguide for said electromagnetic wave. An off-axis electron beam is generated at a selected energy and has an energy noise inherently arising from electron gun. The off-axis electron beam is introduced into the waveguide. The off-axis electron beam is introduced into the waveguide at a second radius. The waveguide structure is designed to obtain a selected detuning of the electron beam. The off-axis electron beam has a velocity and the second radius to place the electron beam at a selected distance from the walls defining the waveguide, wherein changes in a density of the electron beam due to the RF electromagnetic wave are independent of the energy of the electron beam to provide a concomitant stable operating regime relative to the energy noise.

• Research Organization: LANL (Los Alamos National Laboratory (LANL), Los Alamos, NM (United States))
• Sponsoring Organization: US Department of Energy
• DOE Contract Number: W-7405-ENG-36
• Assignee: LANL; EDB-00:006324
• Patent Number(s): NONE
• Application Number: Int. Cl. H01S 3/00; US 6,014,387/A/; 8-915,233
• OSTI ID: 20013923
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
DESIGN
ELECTRON BEAMS
OPERATION
STABILITY
TRAVELLING WAVE TUBES
WAVEGUIDES