Nuclear radiation
Semiconductor detectors
and Associated electronics


CdZnTe Large Volume Spectroscopy Detector

CZT 500(S)
CZT 1500

The CZT/500 and CZT/1500 are room temperature gamma-radiation spectroscopy detectors. The basic advantage of this detector is a large sensitive volume of 0.5 cm3 for CZT/500 and of 1.5 cm3 for CZT/1500. These detectors can be used with miniature low noise charge sensitive preamplifier PA 101C. Application of the other preamplifiers is possible too. These detectors have been designed for application in portable spectrometers for different applications. Due do the high spectroscopy performance these detectors can be used for nuclide identification.


  • High efficiency
  • High energy resolution
  • Room temperature operation
  • Small dimensions and weight
  • Wide detection range


  • Nuclear materials verification
  • Environmental monitoring
  • Control of illicit trafficking of nuclear materials
  • Portable spectrometers
  • Monitoring of nuclear material flow


Spectroscopy performance

Detector Detector Volume, cm3 Bias Voltage, V Energy Resolution (FWHM) at 662 keV, keV Peak-to-Compton Ratio at 662 keV
Standard Grade Super Grade Standard Grade Super Grade
CZT 500(S) 0.5 ≤ 1500 ≤ 30 keV ≤ 18 keV ≥ 2.3 ≥ 4.0
CZT 1500 1.5 ≤ 3500 ≤ 30 keV n/a ≥ 2.5 n/a


  • Detector type CdZnTe quasi-hemispherical detector
  • Detector high voltage polarity positive
  • Range of recommended operation temperature 0 to 40 °C


  • CZT 500(S)
    • length (without connector)33 mm
    • diameter23 mm
  • CZT 1500
    • length (without connector)36 mm
    • diameter32 mm


  • CZT 500(S)BNC
  • CZT 1500SHV


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