Estimation of a photon energy spectrum for a computed tomography scanner

Estimated photon energy spectra are derived from transmission measurements using aluminum, copper, and sodium iodide absorbers. Two spectral models are proposed. One is based on a previously published model that analyzes the electron’s penetration into the anode, and the production and attenuation o...

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Veröffentlicht in:	Medical physics (Lancaster) 1997-05, Vol.24 (5), p.695-702
Hauptverfasser:	Ruth, Christopher, Joseph, Peter M.
Format:	Artikel
Sprache:	eng
Schlagworte:	87.56.05 Absorption spectra aluminium Aluminum Anodes biomedical equipment Biophysical Phenomena Biophysics bremsstrahlung Computed radiography Computed tomography Computer Simulation computerised tomography Copper Humans Image scanners Mass spectra Models, Theoretical Non‐ionizing radiation equipment and techniques Phantoms, Imaging Photons Sodium sodium compounds Sodium Iodide Technology, Radiologic Tomography, X-Ray Computed - instrumentation Tomography, X-Ray Computed - statistics & numerical data Transmission measurement X‐ray and EXAFS X‐ray emission spectra
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