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 journalArticle

16 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 languageEnglish
Article number101915
JournalMedical physics
Volume41
Issue number10
DOIs
StatePublished - Oct 1 2014

Keywords

  • CT
  • bow tie filter
  • real-time dosimeter

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