A novel method for determining source spectrum/detector spectral response in x-ray imaging

Lifeng Yu, Emil Y. Sidky, Xiaochuan Pan

Research output: Contribution to journalConference article

1 Scopus citations

Abstract

Knowledge of the x-ray spectrum in diagnostic imaging is important for dose calculations and correction for beam-hardening artifacts. This work investigates the possibility of determining the x-ray source spectrum from transmission data of a known phantom. In addition to the design of the phantom, the novel aspect of this work is the application of the expectation-maximization method, widely used in tomographic image reconstruction, in solving the ill-posed problem of finding the x-ray spectrum from transmission data.

Original languageEnglish (US)
Article numberM11-314
Pages (from-to)2964-2967
Number of pages4
JournalIEEE Nuclear Science Symposium Conference Record
Volume4
StatePublished - Dec 1 2003
Event2003 IEEE Nuclear Science Symposium Conference Record - Nuclear Science Symposium, Medical Imaging Conference - Portland, OR, United States
Duration: Oct 19 2003Oct 25 2003

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

Fingerprint Dive into the research topics of 'A novel method for determining source spectrum/detector spectral response in x-ray imaging'. Together they form a unique fingerprint.

  • Cite this