Cadmium zinc telluride spectral modeling

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Cadmium Zinc Telluride (CZT) detectors are the highest resolution room-temperature gamma ray detectors available for isotopic analysis. As with germanium detectors, accurate isotopic analysis using the spectra requires peak deconvolution. The CZT peak shapes are asymmetric, with a long low energy tail. The asymmetry is a result of the physics of the electron/hole transport in the semiconductor. An accurate model of the physics of the electron/hole transport through an electric field will allow the parameterization of the peak shapes as a function of energy. In turn this leads to the ability to perform accurate spectral deconvolution and therefore accurate isotopic ... continued below

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16 p.

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Dardenne, Y. X., LLNL April 1, 1998.

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Description

Cadmium Zinc Telluride (CZT) detectors are the highest resolution room-temperature gamma ray detectors available for isotopic analysis. As with germanium detectors, accurate isotopic analysis using the spectra requires peak deconvolution. The CZT peak shapes are asymmetric, with a long low energy tail. The asymmetry is a result of the physics of the electron/hole transport in the semiconductor. An accurate model of the physics of the electron/hole transport through an electric field will allow the parameterization of the peak shapes as a function of energy. In turn this leads to the ability to perform accurate spectral deconvolution and therefore accurate isotopic analysis. The model and the peak-shape parameterization as a function of energy will be presented.

Physical Description

16 p.

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OSTI as DE98057935

Other: FDE: PDF; PL:

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  • 9. symposium on radiation measurements and applications, Ann Arbor, MI (United States), 11-14 May 1998

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  • Other: DE98057935
  • Report No.: UCRL-JC--130504
  • Report No.: CONF-980545--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 290556
  • Archival Resource Key: ark:/67531/metadc687916

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Office of Scientific & Technical Information Technical Reports

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  • April 1, 1998

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  • July 25, 2015, 2:20 a.m.

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  • April 10, 2017, 2:01 p.m.

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Dardenne, Y. X., LLNL. Cadmium zinc telluride spectral modeling, article, April 1, 1998; California. (digital.library.unt.edu/ark:/67531/metadc687916/: accessed December 15, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.