To realize a fast and reliable approach for continuous radon measurements, a CdZnTe (CZT) detector based on the electrostatic collection method was developed. The experimental results show that when the external temperature varies from 5 °C to 30 °C, the maximum drifts of the characteristic peak positions of 218Po and 214Po are only 8 and 6. Furthermore, the measurement error associated with the constant radon concentration is less than 5.5%. As the temperature increases or decreases, the measurement error becomes larger, with the maximum error being 43.1%. The response of the proposed instrument for constant radon concentration is better than that of the RAD7 radon measurement instrument. At 25 °C, the value measured using the NRL-II radon meter with the PIPS detector is in good agreement with the actual value. The new radon measurement instrument exhibits a good compliance from the third measurement cycle (measurement deviation 0.53-3.95%), while RAD7 has good compliance from the fourth measurement cycle (measurement deviation of 1.17-4.88%). The theoretical and practical values of the iterative correction factor (influence of the previous measurement on the current measurement) of the radon measurement instrument are in good agreement. The iterative correction factor can be used for performing continuous radon measurements independently, with the aim of achieving a rapid response to environmental radon concentrations.

中文翻译：

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基于CdZnTe探测器的α能谱氡测量仪性能研究。

为了实现快速、可靠的连续氡气测量方法，开发了一种基于静电收集方法的 CdZnTe (CZT) 探测器。实验结果表明，当外界温度从5℃变化到30℃时，218Po和214Po特征峰位置的最大漂移仅为8和6，且与恒定氡气浓度相关的测量误差较小。超过5.5%。随着温度升高或降低，测量误差变大，最大误差为43.1%。所提出的仪器对恒定氡气浓度的响应优于 RAD7 氡气测量仪器。在25℃下，使用NRL-II氡气计和PIPS探测器测量的值与实际值吻合较好。新型氡气测量仪从第三个测量周期开始表现出良好的合规性（测量偏差0.53-3.95%），而RAD7从第四个测量周期开始表现出良好的合规性（测量偏差1.17-4.88%）。氡气测量仪器的迭代修正系数（前次测量对本次测量的影响）的理论值和实际值吻合较好。迭代修正因子可用于独立执行连续氡气测量，目的是实现对环境氡气浓度的快速响应。