Laplace reconstruction of experimental diagnostic x‐ray spectra
作者:
Benjamin R. Archer,
Thomas R. Fewell,
Louis K. Wagner,
期刊:
Medical Physics
(WILEY Available online 1998)
卷期:
Volume 15,
issue 6
页码: 832-837
ISSN:0094-2405
年代: 1998
DOI:10.1118/1.596198
出版商: American Association of Physicists in Medicine
数据来源: WILEY
摘要:
This paper displays the results of a blind study used to determine the capability of a Laplace transform pair model to accurately reconstruct diagnostic x‐ray spectra from experimental attenuation data. Spectra reconstructed from attenuation measurements are compared to experimental spectra obtained on the same unit using an intrinsic germanium spectrometer system. The results show that when pure attenuation materials are used, good agreement is obtained between the experimental and computed spectra. If an alloy attenuator like 1100 aluminum is used, the proportion of contaminants must be included in the Laplace formulation for accurate reconstruction.
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