Abstract
Good energy resolution, high resistivity, and room temperature operation make CZT a substitute candidate for traditional semiconductors. Despite many advantages and the potential to be applied in α surface contamination monitors and radioactivity meters, CZT is rarely utilized in alpha particle detection. In this chapter, an alpha particle detecting system we designed and built is introduced with its performance. The response to signal, electronic noise, energy resolution, and electron mobility-lifetime product of the system are measured in experiment. The properties of the interaction between CZT detector and alpha particle are discussed depending on the simulation results from Geant4, while the characterization of charge carrier transportation is analyzed with COMSOL, a finite element methods(FEM) software. A simulated spectrum is reconstructed, matching the experimental one well, and the approach to creating it is illustrated. Besides, the effect of CZT crystal’s Cr coating on energy resolution is also evaluated.
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Xiang, Y., Wei, L. (2023). Research on the Performance of CZT Detector in Alpha Particle Detection. In: Abbene, L., Iniewski, K.(. (eds) High-Z Materials for X-ray Detection. Springer, Cham. https://doi.org/10.1007/978-3-031-20955-0_7
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DOI: https://doi.org/10.1007/978-3-031-20955-0_7
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