Method and apparatus of radiographic imaging with an energy...

Details Method and apparatus of radiographic imaging with an energy... Method and apparatus of radiographic imaging with an energy...

2007-08-21

2007-08-21

Kao, Chih-Cheng G (Department: 2882)

X-ray or gamma ray systems or devices

Beam control

Filter

C378S016000, C378S158000, C378S159000

Reexamination Certificate

active

11419851

ABSTRACT:
A method and apparatus for tailoring the profile of an x-ray beam for radiographic imaging for a specific subject is disclosed. The invention includes a filter assembly having a pair of filters, each of which may be dynamically controlled by a motor assembly during data acquisition. The filters are positionable in the x-ray beam so as to shape the intensity profile of the x-ray beam. In one exemplary embodiment, the filters are dynamically positioned during CT data acquisition based on the shape of the subject. A method of determining the shape of the subject prior to CT data acquisition is also disclosed.

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