2002
DOI: 10.1118/1.1485975
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CdZnTe detector in diagnostic x‐ray spectroscopy

Abstract: A method to utilize CdZnTe (CZT) detectors in diagnostic x-ray spectroscopy is described in this article. Spectral distortion due to transmission of primary x rays, the escape of cadmium- and tellurium-K fluorescent x rays, and tailing was severe in measured x-ray spectra. Therefore, correction for the distortion was performed with the stripping method using response functions. The response functions were calculated with the Monte Carlo method. The Hecht equation was employed to approximate the effects of carr… Show more

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Cited by 90 publications
(85 citation statements)
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“…Porém, complexidades técnicas no processo de medições destes espectros dificultaram por muito tempo a aplicação da espectrometria em condições clínicas para avaliar feixes de radiodiagnostico. No entanto, com o surgimento dos sistemas de espectrometria portáteis, o uso dessa técnica tem sido ampliado, incluindo aplicações para avaliação de espectros de raios X de feixes clínicos para fins de pesquisa [2][3][4][5][6][7][8] .…”
Section: Introductionunclassified
“…Porém, complexidades técnicas no processo de medições destes espectros dificultaram por muito tempo a aplicação da espectrometria em condições clínicas para avaliar feixes de radiodiagnostico. No entanto, com o surgimento dos sistemas de espectrometria portáteis, o uso dessa técnica tem sido ampliado, incluindo aplicações para avaliação de espectros de raios X de feixes clínicos para fins de pesquisa [2][3][4][5][6][7][8] .…”
Section: Introductionunclassified
“…These alloys were already prepared as single crystals grown by the Bridgman method and travelling heater technique [7][8][9][10][11] . ZnxCd1-xTe alloys are the basic elements in the fabrication of the solid-state detectors for medical applications 12 and astronomical physics [13][14] . Ouahrani et al 15 used generalized gradient approximation (GGA) and Engel Vosko -GGA (EV-GGA) formalisms for the exchange correlation potentials to correct band gap of the chalcopyrite ZnCdTe2 compound and to find linear, and nonlinear optical properties.…”
Section: Introductionmentioning
confidence: 99%
“…ECENTLY, detectors based on cadmium zinc telluride (room temperature compound semiconductor) are promising X-ray and gamma-ray spectrometers [1], [2] and are very attractive in many disciplines, such as medicine [3], [4] and astrophysics [5], [6]. The high atomic number (Z max = 52) and the wide band gap (E G ∼ 1.6 eV), in comparison with Si and Ge, give high quantum efficiency and good room temperature performances.…”
Section: Introductionmentioning
confidence: 99%