Method and apparatus to control radiation tube focal spot size

Details Method and apparatus to control radiation tube focal spot size Method and apparatus to control radiation tube focal spot size

2006-05-23

2008-08-05

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Electronic circuit

With switching means

C378S110000, C378S112000, C378S113000

Reexamination Certificate

active

07409043

ABSTRACT:
A method for controlling focal spot size changes of an x-ray source in an imaging system includes measuring focal spot sizes as a function of a plurality of x-ray source operating parameters, determining a calibration table or transfer function utilizing the measured focal spot sizes as a function of the plurality of x-ray tube operating parameters, and utilizing the calibration table or transfer function to control focal spot size variations during operation of the imaging system.

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