文章介绍了HN-501A型中子活化瞬发Υ在线元素分析系统的性能、原理、组成和工业应用情况。该仪器测量H的瞬发Υ峰的能量分辨率为3.6keV。测量Al_2O_3,Fe_2O_3,CaO,SiO_2.Na_2O.TiO_2和H_2O的含量误差分别为±土0.3.±0.1,±0.3,±0.8,±0.2,±0.2和±0.5％。该仪器曾在山东铝厂和郑州铝厂进行过现场应用实验,证明该系统的稳定性、可靠性、测量范围和测量精度皆能满足氧化铝生产的需要。使用之后,可减轻劳动强度、降低能耗和提高氧化铝生料浆配比的合格率,可望获很高的经济效益。 The paper introduces the performance, principle, composition and industrial application of HN-501A Neutron Activation Instantaneous Element Analysis System. The instrument measured H’s instantaneous Υ peak energy resolution of 3.6keV. The error of content of Al_2O_3, Fe_2O_3, CaO, SiO_2.Na_2O.TiO_2 and H_2O were ± 0.3 ± 0.1 ± 0.3 ± 0.8 ± 0.2 ± 0.2% ± 0.5% respectively. The instrument has been in Shandong Aluminum Factory and Zhengzhou Aluminum Plant field experiments conducted to prove that the stability of the system, reliability, measurement range and measurement accuracy can meet the needs of alumina production. After use, can reduce labor intensity, reduce energy consumption and increase the pass rate of alumina raw slurry ratio, is expected to be very high economic benefits.