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Fano Factor Determination For CZT

  • R. H. Redus (a1), J. A. Pantazis (a1), A. C. Huber (a1), V. T. Jordanov (a1), J. F. Butler (a2) and B. Apotovsky (a2)...

Abstract

Continued improvements in the manufacturing of Cd1−xZnxTe (CZT) material have resulted in a practical thermoelectrically cooled X-ray and gamma-ray detector of very high energy resolution. A high resolution spectroscopy system was used to measure the Fano factor in CZT at temperatures down to -40°C. The best resolution of the 5.9 keV 55Fe peak was measured to be 188 eV FWHM, while the best resolution of the 59.5 keV 241Am peak was measured to be 482 eV FWHM. The minimum measured Fano factor was 0.082, with several measurements yielding a value of 0.089±0.005. With a resolution of 4.2 keV FWHM for the 662 keV peak of 137Cs, these detectors demonstrate excellent performance in detecting X-rays and gamma rays.

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Fano Factor Determination For CZT

  • R. H. Redus (a1), J. A. Pantazis (a1), A. C. Huber (a1), V. T. Jordanov (a1), J. F. Butler (a2) and B. Apotovsky (a2)...

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