X-ray source with a plurality of electron emitters
AssigneeKoninklijke Philips Electronics N.V.
InventorsGereon Vogtmeier, Wolfgang Chrost
Life of this patent
Estimating the term…
Abstract
The invention relates to an X-ray source (100) with an electron-beam-generator (120) for generating electron beams (B, B′) that converge towards a target (110). Thus the spatial distribution of X-ray focal spots (T, T′) on the target (110) can be made denser than the distribution of electron sources (121), wherein the latter is usually dictated by hardware limitations. The electron-beam-generator (120) may particularly comprise a curved emitter device (140) with a matrix of CNT based electron emitters (141) and an associated electrode device (130).
Claims28
An X-ray source, comprising
- a target for emitting X-rays upon bombardment with an electron beam;
- an electron-beam-generator with at least two electron-beam sources for selectively emitting electron beams that converge towards the target.
(canceled)
A method for generating X-rays, comprising
- emitting electron beams selectively from at least two different electron-beam sources of an electron-beam-generator;
- focusing said electron beams in a convergent manner onto a target.
Dependencies are inferred from the claim text.