System and method for X-ray spot control

Details System and method for X-ray spot control System and method for X-ray spot control

2008-01-08

2008-01-08

Song, Hoon (Department: 2882)

X-ray or gamma ray systems or devices

Source

Electron tube

C378S012000

Reexamination Certificate

active

07317785

ABSTRACT:
The present technique provides a method for controlling an electron beam (e-beam) in an X-ray tube. The method comprises emitting electrons from an electron source to form the e-beam, accelerating the e-beam from a cathode through an aperture in a plate, focusing and steering the e-beam from the aperture through a plurality of field generating plates, and accelerating the e-beam from the plurality of the field generating plates to a target. Also provided are X-ray tubes and computed tomography systems.

REFERENCES:
patent: 5490193 (1996-02-01), Kuroda et al.
patent: 5491734 (1996-02-01), Boyd et al.
patent: 6670625 (2003-12-01), Rand et al.
patent: 2006/0002515 (2006-01-01), Huber et al.
patent: 2006/0028114 (2006-02-01), Steenbrink et al.
PCT International Search Report dated Jul. 26, 2007.

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