Methods and systems for dynamic pitch helical scanning

Details Methods and systems for dynamic pitch helical scanning Methods and systems for dynamic pitch helical scanning

2007-07-10

2007-07-10

Thomas, Courtney (Department: 2882)

X-ray or gamma ray systems or devices

Beam control

Collimator

C378S016000, C378S015000

Reexamination Certificate

active

11273851

ABSTRACT:
Methods and systems for controlling x-ray exposure during a dynamic pitch helical scan using a translatable table are provided. The system includes a collimator positioned between an x-ray source and an object to be scanned configured to shutter an x-ray fan beam generated by the x-ray source to at least one of translate the x-ray fan beam along a z-axis of the scan and vary the width of the x-ray beam along the z-axis, and a collimator controller configured to dynamically position the collimator using at least one of predetermined trajectory of the translatable table and a current position of the translatable table.

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