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High-Sensitivity Fast Neutron Detector KNK-2-7M

机译：高灵敏度快速中子探测器KNK-2-7M

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摘要

The construction of the fast neutron detector KNK-2-7M is briefly described. The results of the study of the detector in the pulse-counting mode are given for the fissions of Np-237 nuclei in the radiator of the neutron-sensitive section and in the current mode with the separation of sectional currents of functional sections. The possibilities of determining the effective number of Np-237 nuclei in the radiator of the neutron-sensitive section are considered. The diagnostic possibilities of the detector in the counting mode are shown by example of the analysis of the reference data from the neutron-field characteristics in the working hall of the BR-K1 reactor. The diagnostic possibilities of the detector in the current operating mode are shown by example of the results of measuring the Np-237-fission intensity in the BR-K1 reactor power start-ups implemented in the mode of fission-pulse generation on delayed neutrons at the detector arrangement inside the reactor core cavity under conditions of a wide variation of the reactor radiation field.
机译：简要描述了快速中子探测器KNK-2-7M的结构。给出了在脉冲计数模式下对探测器的研究结果，它针对中子敏感部分的辐射体中Np-237核的裂变，以及在电流模式下分离功能部分的截断电流的情况。考虑了确定中子敏感区辐射器中Np-237核的有效数目的可能性。通过对来自BR-K1反应堆工作大厅中子场特征的参考数据进行分析的示例，显示了检测器在计数模式下的诊断可能性。通过测量BR-K1反应堆功率启动中Np-237裂变强度的结果示例，展示了在当前工作模式下探测器的诊断可能性，该裂变强度以裂变脉冲在延迟下的中子产生的模式实施。在反应堆辐射场变化很大的条件下，将探测器布置在反应堆堆芯腔内。

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