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用单光子计数器探测绝缘聚合物的电致发光来测试聚合物老化击穿性能,比传统的计算空间电荷畸变方法准确度更高,因单光子计数器的总灵敏度受光电倍增管噪声及量子效率的影响,故采用半导体制冷与水冷双重冷却的方法研制了单光子计数器冷却系统.经实验证明,该系统大大降低了光电倍增管的噪声,提高了量子效率,从而提高了计数器的总灵敏度,为聚合物性能方面的新型绝缘材料的开发利用提供了更加准确可靠的方法.
Using a single photon counter to detect the electroluminescence of an insulating polymer to test the polymer’s aging breakdown performance is more accurate than the traditional method of calculating space charge distortion because the total sensitivity of a single photon counter is affected by photomultiplier tube noise and quantum efficiency The single-photon counter cooling system has been developed by the method of semiconductor cooling and water-cooled double cooling.The experiment proves that the system greatly reduces the noise of the photomultiplier tube and improves the quantum efficiency so as to improve the total counter sensitivity, The development and utilization of new insulating materials in terms of material properties provide a more accurate and reliable method.