ION SOURCE Russian patent published in 1995 - IPC

FIELD: electromagnetic isotope separation. SUBSTANCE: ion source is single-potential module that has discharge chamber 1, cover 2, cathode 3 and, in case of use of arc discharge oscillating mode, reflecting electrode 6. Anode 7 only is insulated from discharge voltage by means of two insulators shielded from anode dusting and spaced apart from hot cathode 3. Positive potential of anode raises intensity and density of ion current in accelerated ion beam due to forced inflow of discharge plasma charged particles to extraction slit crosswise of magnetic field lines of force in crossed electric and magnetic fields. Apart from more complete utilization of ions formed in discharge column, working medium is more effectively used in ion source discharge chamber. Zirconium carbide element of cathode 3 soldered to substrate 4 made of high-melting metal provides for twice as low cathode heating power and several times longer service life of ion source at current density in accelerated ion beam higher than 100 mA sq. cm. EFFECT: simplified design and operating reliability. 4 cl, 4 dwg