本文描述了在 HFETR 上有功率时反应性参数测量的一种方法.此方法是以负梯形波方式扰动反应堆状态为基础的.这种负梯形波扰动很安全,扰动时间短,可直接利用常规的控制棒产生.文中讨论了理论和实验测量两方面的工作,对空间效应作了详细讨论.提出以参数形式写入拟合方程组,直接对采集数据作消除空间效应的计算,避免了繁琐的理论计算修正. This paper describes a method for measuring the reactivity parameters at the time of power on a HFETR based on a negative trapezoidal wave perturbation of the state of the reactor. This negative trapezoidal wave perturbation is safe and the disturbance time is short, Of the control rod generated.This paper discusses the theoretical and experimental measurements of both the work of the space effect were discussed in detail.Proposed to write the parameters in the form of fitting equations, the data collected directly to eliminate the calculation of spatial effects, to avoid the cumbersome The theoretical calculation correction.