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中文摘要：
运用点堆中子动力学方程建立模型，计算了某小型反应堆在6种典型工况下，反应堆引入线性正反应性时各主要参数的变化，并将计算结果与该堆的三维实时仿真软件的计算结果进行了比较。结果表明，点堆模型可以模拟出反应堆受到线性正反应性扰动后各主要参数的峰值和扰动后的稳定值，但在响应时问和波动持续时问方面仍需改进。
英文摘要：
In this paper, the model is founded with point-reactor neutron kinetics equation, and main parameters of a small reactor are calculated under six typical operation conditions, when a linear positive reactivity is inserted. The results are compared with those obtained by 3-D real-time simulation software of reactors. It is shown that point-reactor model can describe the maximum changes and steady values of main parameters in the reactor when a linear positive reactivity is inserted, although improvements are also needed in calculating the response time and duration of the fluctuation.
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