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This study details a method for using Cadmium Zinc Telluride (CZT) detectors in diagnostic X-ray spectroscopy. By correcting for spectral distortions, CZT detectors prove suitable for accurate X-ray spectral measurements.

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Area of Science:

  • Medical Physics
  • Materials Science

Background:

  • Diagnostic X-ray spectroscopy requires accurate spectral measurements.
  • Cadmium Zinc Telluride (CZT) detectors offer potential for X-ray detection but suffer from spectral distortions.

Purpose of the Study:

  • To develop and validate a method for utilizing CZT detectors in diagnostic X-ray spectroscopy.
  • To address and correct spectral distortions inherent in CZT detector measurements.

Main Methods:

  • Utilized the stripping method with response functions to correct for spectral distortions.
  • Calculated response functions using the Monte Carlo method.
  • Employed the Hecht equation, incorporating carrier trapping effects, with parameters determined from gamma-ray spectra.

Main Results:

  • Spectral distortions including primary X-ray transmission, K-fluorescent X-ray escape, and tailing were identified.
  • Correction method significantly improved spectral accuracy.
  • Corrected X-ray spectra showed good agreement with reference spectra from HPGe detectors.

Conclusions:

  • CZT detectors are viable for diagnostic X-ray spectroscopy when appropriate spectral distortion corrections are applied.
  • The developed correction method enhances the reliability of CZT detector-based spectral analysis.