Patent
Dual filament ion source
Reads0
Chats0
TLDR
In this paper, an electron bombardment ion source of the Freeman type incorporates an electrode having multiple segments which are electrically connected in parallel to provide increased surface area for constant cross-section.Abstract:
An electron bombardment ion source of the Freeman type incorporates an electrode having multiple segments which are electrically connected in parallel to provide increased surface area for constant cross section.read more
Citations
More filters
Patent
Double-chamber ion source
TL;DR: In this article, an ion source including an electric discharge chamber body divided by a partition, having an anode electrode therein, into a main discharge chamber and a subsidiary discharge chamber is presented.
Patent
Dual filament ion source with improved beam characteristics
TL;DR: In this article, a Freeman type electron bombardment ion source with dual filament electrodes positioned in an arc chamber having a slit for extraction of an ion beam is described, where the filament electrodes are symmetrically positioned with respect to the extraction slit.
Patent
Multiple filament enhanced ion source
TL;DR: In this paper, an improved ion source is provided with multiple filaments and wiring for selectively connecting various combinations of filaments to a current source, which decreases down time due to filament replacement.
Patent
Method and apparatus for maintaining emission capabilities of hot cathodes in harsh environments
Larry K. Carmichael,Michael Dale Borenstein,Paul C. Arnold,Stephen C. Blouch,Richard A. Knott +4 more
TL;DR: In this article, a method and apparatus for operating a multi-hot-cathode ionization gauge is provided to increase the operational lifetime of the ionisation gauge in gaseous process environments.
Patent
Method and apparatus for use an electron gun employing a thermionic source of electrons
TL;DR: In this article, an electron gun with a thermionic electron source and an accelerating electrode is presented, where the first head is replaced by a second head having a power rating substantially different than that of the first, and subsequently operating the electron gun without replacing the accelerating electrode.
References
More filters
Patent
Electron beam gun
TL;DR: In this paper, an electron beam gun is described where a pair of elongated filaments are placed parallel to one another in the elongated channel of a focusing electrode, and the electron beam is fired by a single electron beam.
Journal ArticleDOI
Gas discharge ion source III. Modified Berkeley multifilament ion source
TL;DR: In comparison with earlier studies of duoplasmatron and duopigatron sources, the MFIS beams contained less D(+), only ca.