Ion source having negatively biased extractor

US9105436B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9105436-B2
Application numberUS-201313830469-A
CountryUS
Kind codeB2
Filing dateMar 14, 2013
Priority dateMar 14, 2013
Publication dateAug 11, 2015
Grant dateAug 11, 2015

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Abstract

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A method of generating ions in a radiation generator includes emitting electrons from an active cathode and on a trajectory away from the active cathode, at least some of the electrons as they travel interacting with an ionizable gas to produce ions. The method also includes setting a potential of at least one extractor downstream of the active cathode such that the ions are attracted toward the at least one extractor.

First claim

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The invention claimed is: 1. A method of generating ions in a radiation generator comprising: emitting electrons from an active cathode and on a trajectory away from the active cathode, at least some of the electrons as they travel interacting with an ionizable gas to produce ions; and setting a potential of at least one extractor downstream of the active cathode such that the ions are attracted toward the at least one extractor; wherein the potential of the at least one extra…

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What does patent US9105436B2 cover?
A method of generating ions in a radiation generator includes emitting electrons from an active cathode and on a trajectory away from the active cathode, at least some of the electrons as they travel interacting with an ionizable gas to produce ions. The method also includes setting a potential of at least one extractor downstream of the active cathode such that the ions are attracted toward th…
Who is the assignee on this patent?
Schlumberger Technology Corp
What technology area does this patent fall under?
Primary CPC classification H01J27/024. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Aug 11 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).