Directly heated lanthanum hexaboride cathode | Zendy

K. N. Leung | Zendy; David Moussa | Zendy; S. Wilde | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Directly heated lanthanum hexaboride cathode

Author(s) -

K. N. Leung,

David Moussa,

S. Wilde

Publication year - 1986

Publication title -

review of scientific instruments

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 165

eISSN - 1089-7623

pISSN - 0034-6748

DOI - 10.1063/1.1138641

Subject(s) - cathode , materials science , plasma , current (fluid) , cold cathode , coaxial , atomic physics , voltage , hot cathode , electrical engineering , physics , nuclear physics , engineering

A directly heated, cylindrical LaB6 cathode has been tested in a multicusp plasma generator. Magnetic fields generated by the heater and the discharge current are minimized by the special coaxial construction, thus enabling electron emission at very low discharge voltages. At higher discharge voltage, a discharge current greater than 100 A has been obtained from a single cathode unit in a steady‐state plasma source operation. When the discharge current exceeds 25 A, the cathode can be operated without any heater current. The emission temperature is maintained just by ion bombardment from the discharge plasma.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research