本文建立了用改进的活化法与蒙特卡罗计算相结合测量中子反照率的方法。
A new method was developed to measure the neutron albedo by the Monte Carlo code and the activation method.
用MCNP／4B程序，对核活化法反应计算中的截断能量、通量计数方式、数据库、阈探测器之间的扰动等因素的影响作了分析。
With MCNP/4B code, the influence of cut-off energy, flux tallies, nuclear databases and perturbation on the reaction rates calculation with neutron-activation method are analysed.
计算结果表明，中子活化在线分析系统的最优化慢化材料为聚乙烯。
The results lay the foundation for the study of on-line neutron activation analysis system.
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