期刊
出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2010.07.041
关键词
CdTe detector; X-ray spectroscopy; Diagnostic X-rays; kVp monitoring
类别
资金
- National Institutes of Health [GM 08156-22]
It has been suggested that kVp of diagnostic X-ray devices (or maximal energy of X-ray photon spectra) should be monitored routinely; however a standardized non-invasive technique has yet to be developed and proposed. It is well known that the integral number of Compton scattered photons and the intensities of fluorescent X-ray lines registered after irradiation of some material by an X-ray beam are a function of the maximal beam energy. CdTe detectors have sufficient energy resolution to distinguish individual X-ray fluorescence lines and high efficiency for the photon energies in the diagnostic region. Our initial measurements have demonstrated that the different ratios of the integral number of Compton scattered photons and intensities of K and L fluorescent lines detected by CdTe detector are sensitive function of maximal photon energy and could be successfully applied for kVp monitoring. (C) 2010 Elsevier B.V. All rights reserved.
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