A frequency-locked, high-power, X-band dielectric Cerenkov maser

Journal Article · Mon Jun 01 00:00:00 EDT 1992 · IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6975738

Weatherall, J C ^[1]

---

1. Dept. of Physics, New Mexico Inst. of Mining and Technology, Socorro, NM (US)

Most research on the dielectric Cerenkov maser (DCM) has focused only on free running oscillators. Presented in this paper, is a high-power frequency-locked oscillator. The device consists of an annular electron beam traveling down a dielectric-lined waveguide (wall radius 1.74 cm, liner thickness 2-3 mm, liner {epsilon} = 10). A 100 kW input signal is injected into the drift tube between the diode and liner, through a rectangular TE{sub 10} to cylindrical TM{sub 01} mode converter. When operated with a beam current of 500 A and a total output power of 13 MW, the device displays no RF quenching through the full width of the 100 ns beam pulse. Two higher current cases are presented with power as high as 280 MW but severe RF quenching. The results are compared with linear theory, and quenching mechanisms are discussed.

• OSTI ID: 6975738
• Journal Information: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States), Vol. 20:3; ISSN 0093-3813
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
42 ENGINEERING
MASERS
POWER
WAVEGUIDES
ANNULAR SPACE
BEAM CURRENTS
CHERENKOV RADIATION
DIELECTRIC MATERIALS
DRIFT TUBES
ELECTRON BEAMS
FREQUENCY CONTROL
FREQUENCY CONVERTERS
PULSES
AMPLIFIERS
BEAMS
CONFIGURATION
CONTROL
CURRENTS
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
EQUIPMENT
LEPTON BEAMS
MATERIALS
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
PARTICLE BEAMS
RADIATIONS
SPACE
440800* - Miscellaneous Instrumentation- (1990-)
426000 - Engineering- Components
Electron Devices & Circuits- (1990-)