Ivanov Victor, Fjodorovs Viktors, Loutchanski Anatoli, Piskunovs Maksims, Ivanovs Valerijs
ZRF Ritec SIA, Gustava Zemgala Av. 71A, LV-1039 Riga, Latvia.
Sensors (Basel). 2023 Oct 10;23(20):8378. doi: 10.3390/s23208378.
This article discusses the possibilities and limitations of CdZnTe (CZT) quasi-hemispherical detectors operating over a wide temperature range and at high-gamma radiation fluxes. The results of the negative influence of low- and high-operating temperatures, as well as high-radiation fluxes on spectrometric characteristics of CZT detectors and possible ways to eliminate performance deterioration, are presented. The impact of infrared (IR) illumination parameters, such as wavelength and irradiation intensity on the spectroscopy performance of detectors, was investigated. A correctly chosen IR illumination wavelength and intensity were shown to significantly improve the energy resolution of CZT quasi-hemispherical detectors, allowing their stable operation in high-gamma radiation fluxes and extend the operating temperature range toward low temperatures. The influences of bias voltage values and temperatures on the quasi-hemispherical CZT detectors' operating ability at high-gamma radiation fluxes were studied.
本文讨论了碲锌镉（CZT）准半球形探测器在宽温度范围和高伽马辐射通量下工作的可能性和局限性。介绍了低工作温度和高工作温度以及高辐射通量对CZT探测器光谱特性的负面影响，以及消除性能劣化的可能方法。研究了红外（IR）照明参数，如波长和辐照强度对探测器光谱性能的影响。结果表明，正确选择红外照明波长和强度可显著提高CZT准半球形探测器的能量分辨率，使其能够在高伽马辐射通量下稳定工作，并将工作温度范围扩展至低温。研究了偏置电压值和温度对高伽马辐射通量下准半球形CZT探测器工作能力的影响。
