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Optimization of the source firing pattern for x-ray scanning systems

A technology of X-rays and X-ray tubes, applied in the field of improved reconstruction of images, which can solve the problems of image formation, artifacts, projection space sampling, etc.

Inactive Publication Date: 2015-04-01
RAPISCAN SYST INC (US)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0031] In particular, applicants have recognized that the conventional helical motion of the X-ray source does not optimally sample the projected space within the object, resulting in subsequent image artifacts due to limited sampling

Method used

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  • Optimization of the source firing pattern for x-ray scanning systems
  • Optimization of the source firing pattern for x-ray scanning systems
  • Optimization of the source firing pattern for x-ray scanning systems

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Embodiment Construction

[0051] A number of embodiments will be described below. The purpose of the following disclosure is to enable those of ordinary skill in the art to practice the invention. Language used in this description is to be interpreted according to the meaning of the terms used herein and should not be interpreted as excluding any particular embodiment or used to limit the appended claims. The general principles defined herein may also be applicable to other embodiments and applications without departing from the spirit and scope of the present invention. Also, the terms and phraseology used are for the purpose of describing the exemplary embodiments only and should not be regarded as limiting. Accordingly, the present invention is to be construed in the widest scope encompassing numerous alternatives, modifications and equivalents consistent with the principles and characteristics disclosed. For the purpose of clarity, details of technical material that is known in the technical fiel...

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Abstract

The present application discloses a computed tomography system having non-rotating X-ray sources that are programmed to optimize the source firing pattern. In one embodiment, the CT system is a fast cone-beam CT scanner which uses a fixed ring of multiple sources and fixed rings of detectors in an offset geometry. It should be appreciated that the source firing pattern is effectuated by a controller, which implements methods to determine a source firing pattern that are adapted to geometries where the X-ray sources and detector geometry are offset.

Description

[0001] Cross References to Related Applications [0002] This patent application claims the benefit of the identically titled US Provisional Patent Application 61 / 446,098, filed February 24, 2011, the contents of which are hereby incorporated by reference in their entirety. [0003] This patent application is also related to US patent application 13 / 146,645 filed on July 27, 2011, which is the 371 national phase application of PCT / GB2010 / 050125 filed on January 27, 2010, and PCT / GB2010 / The priority of 050125 is in turn dependent on UK application 0901338.4, filed 28 January 2009. Each of the aforementioned patent applications is incorporated herein by reference in its entirety. [0004] This patent application is also related to US patent application 13 / 054,066 filed on January 13, 2011, which is the 371 national phase application of PCT / GB2009 / 001760 filed on July 15, 2009, and PCT / GB2009 / The priority of 001760 is in turn dependent on UK application 0812864.7, filed 15 July...

Claims

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Application Information

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IPC IPC(8): A61B6/00
CPCA61B6/032A61B6/4028G01N23/046G01T1/2985A61B6/40A61B6/4429
Inventor W.M.汤普森W.R.B.莱昂哈特E.J.莫顿
Owner RAPISCAN SYST INC (US)
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