基于LaBr3（Ce）的蒸汽发生器泄漏率监测仪

摘要

The new type of instrument has been introduced with the sensor LaBr3 ( Ce) for the steam generator leak rate monitoring in nuclear power plant.Comparing performance characteristics of LaBr3 ( Ce) with those of NaI( Tl) , which are the energy linearity, resolution, detect efficiency and temperature effect and so on, advan-tage of LaBr3 ( Ce) is obtained .The research shows that the monitor with NaI( Tl) sensor could be replaced by the monitor with LaBr3 ( Ce) sensor step by step for steam generator leak rate monitoring instrument.%介绍用于核电厂蒸汽发生器泄漏率监测的配以LaBr3（ Ce）探测器的新型检测仪。通过对La-Br3（ Ce）探测器与NaI（ Tl）探测器能量线性、能量分辨率、探测效率和温度影响等性能特性的对比分析，显示了LaBr3（ Ce）探测器的良好性能。研究表明：配以LaBr3（ Ce）探测器的蒸汽发生器泄漏监测仪将可能逐渐替代在用的配以NaI（ Tl）探测器的蒸汽发生器泄漏监测仪。