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1. Thanks to the relatively high atomic number, high density and wide band-gap, CZT detector possesses sharp energy resolution and high detection efficiency without cryogenic cooling. A prototype planar CZT detector with sensitive volume of Φ 8mm×1.7mm has been fabricated and the gamma-ray spectra of 241Am were obtained. At room temperature (22℃) and for the 59.54keV peak, the FWHM can achieve 2.06keV, while no polarization is observed and stability is very satisfactory.
    我们实验室已制成Φ8×17立方公厘灵敏体积的CZT探测器，室温22℃下对241Am放射源、59.54keV能量的γ射线能量分辨率可以达到／2.06keV，连续测量没有极化效应，并且具有很好的长期稳定性。