Premium
Hollow Cathode Effect with Double Axial Electron Injection
Author(s) -
Bratescu G. G.,
Ciobotaru D.,
Dima G.
Publication year - 1988
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.2150280304
Subject(s) - cathode , materials science , anode , argon , atomic physics , helium , conical surface , electrode , electron , glow discharge , voltage , photocathode , optics , plasma , physics , electrical engineering , composite material , quantum mechanics , engineering
The paper presents a new type of HCE glow discharge obtained with double plane‐conical cathodes. The two identical cathodes are tronconical and screened with 1 mm 2 mailed wire net with a 3.5 mm diameter central washer each. The discharge is obtained between the two cathodes and a ring shaped anode equally distant from both. Optimum intercathodic span is 4 mm, allowing for maximum amplifications at the optimum pressure values for the two gases. Employed helium and argon are spectral pure. At the given distance and depending on voltage and gas pressure, a double axial electron self injection cathode effect is obtained between the electrodes, consisting of very large increase of current and radiations.