X-RAY TUBE HAVING PLANAR EMITTER WITH TUNABLE EMISSION CHARACTERISTICS AND MAGNETIC STEERING AND FOCUSING

摘要

An electron emitter including: a plurality of elongate rungs connected together end to end from a first emitter end to a second emitter end in a plane so as to form a planar pattern; a plurality of comers, wherein each elongate rung is connected to another elongate rung through a comer having a comer apex and an opposite corner nadir; a first gap between adjacent non-connected elongate rungs, wherein the.first gap extends from the first emitter end to a middle rung; a second gap between adjacent non-connected elongate rungs, wherein the second gap extends from the second emitter end to the middle rung, wherein the first gap does not intersect the second gap; and one or more cutouts at one or more of the comers of the plurality of comers between the comer apex and comer nadir or at the comer nadir.