Gas-discharge electron gun with a gasdynamic window

Journal Article · Sat Jun 01 00:00:00 EDT 1985 · Instrum. Exp. Tech. (Engl. Transl.); (United States)

OSTI ID:5970672

Chikin, E V; Minina, I V; Orlikov, L N

A gas-discharge electron gun is described which uses a high-voltage glow discharge and a gasdynamic window to extract the electron beam into a gas at a pressure up to 30 kPa. The gun is designed to work continuously at an accelerating voltage of 5-20 kV with a discharge current up to 30 mA in experiments on bulk discharges at medium pressures. The discharge system consists of the cathode and anode. The cathode material is Al or LaB/sub 6/, which have high ion-electron emission coefficients. The gun can work in various gas mixtures such as N/sub 2/, CO/sub 2/, He, and air. The electron beam on emerging from the gasdynamic window expands because of scattering in the gas, and the ionization region is initially of droplet form, but it approaches spherical as the pressure increases or the electron energy decreases.

• Research Organization: Tomsk Institute of Automated Control and Electrical Systems
• OSTI ID: 5970672
• Journal Information: Instrum. Exp. Tech. (Engl. Transl.); (United States), Vol. 27:6, PT. 2; Other Information: Translated from Pribory i Tekhnika Eksperimenta, No. 6, pp. 137-139, November-December, 1984
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ELECTRON GUNS
GAS DISCHARGE TUBES
ALUMINIUM
ANODES
BEAM EXTRACTION
BEAM HOLES
CATHODES
ELECTRON BEAMS
GLOW DISCHARGES
IONIZATION
KEV RANGE 10-100
LANTHANUM BORIDES
MILLI AMP BEAM CURRENTS
PERFORMANCE
SPECIFICATIONS
BEAM CURRENTS
BEAMS
BORIDES
BORON COMPOUNDS
CURRENTS
ELECTRIC DISCHARGES
ELECTRODES
ELECTRON TUBES
ELEMENTS
ENERGY RANGE
KEV RANGE
LANTHANUM COMPOUNDS
LEPTON BEAMS
METALS
PARTICLE BEAMS
RARE EARTH COMPOUNDS
REACTOR CHANNELS
REACTOR COMPONENTS
REACTOR EXPERIMENTAL FACILITIES
430302* - Particle Accelerators- Injection & Extraction Systems