Measurement of bow tie profiles in CT scanners using a real-time dosimeter

Bruce R. Whiting; Joshua D. Evans; Andreea C. Dohatcu; Jeffrey F. Williamson; David G. Politte

doi:10.1118/1.4896196

Measurement of bow tie profiles in CT scanners using a real-time dosimeter

Bruce R. Whiting, Joshua D. Evans, Andreea C. Dohatcu, Jeffrey F. Williamson, David G. Politte

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Purpose: Several areas of computed tomography (CT) research require knowledge about the intensity profile of the x-ray fan beam that is introduced by a bow tie filter. This information is considered proprietary by CT manufacturers, so noninvasive measurement methods are required. One method using real-time dosimeters has been proposed in the literature. A commercially available dosimeter was used to apply that method, and analysis techniques were developed to extract fan beam profiles from measurements.

Original language	English (US)
Article number	101915
Journal	Medical Physics
Volume	41
Issue number	10
DOIs	https://doi.org/10.1118/1.4896196
State	Published - Oct 1 2014
Externally published	Yes

Keywords

CT
bow tie filter
real-time dosimeter

ASJC Scopus subject areas

Biophysics
Radiology Nuclear Medicine and imaging

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10.1118/1.4896196

Cite this

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AU - Williamson, Jeffrey F.

AU - Politte, David G.

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AB - Purpose: Several areas of computed tomography (CT) research require knowledge about the intensity profile of the x-ray fan beam that is introduced by a bow tie filter. This information is considered proprietary by CT manufacturers, so noninvasive measurement methods are required. One method using real-time dosimeters has been proposed in the literature. A commercially available dosimeter was used to apply that method, and analysis techniques were developed to extract fan beam profiles from measurements.

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Measurement of bow tie profiles in CT scanners using a real-time dosimeter

Abstract

Keywords

ASJC Scopus subject areas

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