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.

Document Type

Patent

Patent Number

US 7,242,749 B2

Application Serial Number

11/273,851

Issue Date

7-10-2007

Current Assignee

Joint Assignment w/UCFRF: General Electric Company

Assignee at Issuance

Joint Assignment w/UCFRF: General Electric Company

College

College of Sciences

Department

Mathematics

Allowance Date

3-19-2007

Filing Date

11-15-2005

Assignee at Filing

Joint Assignment w/UCFRF: General Electric Company

Filing Type

Nonprovisional Application Record

Donated

no

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