【摘要】 实验研究了中子倍增率测量的系统误差。测量了41cm和46cm慢化剂厚度时的15cm厚铅的中子倍增率。用10cm厚的小CH₂（空心）球检验了实验原理的有效性。实验发现系统的重复性是好的。仔细研究和分析了0.22mm和0.50mm两个不同厚度的⁶Li玻璃对中子场的扰动。用1-D ANISN程序和ENDF/B-VI库数据计算和重新分析了修正量。更多还原

【Abstract】 Systematic errors in measurement of neutron multiplication have been experimentally studied. The neutron multiplication in Pb,15cm in thickness, have been measured with moderators of 41cm and 45cm thick. The validity of the experimental principle was verified with a small, polyethylene (hollow) sphere 10cm in thickness. The reproducibility of the system is satisfactory. The flux perturbation of enriched 6Li glass detectors with thickness of 0. 22mm and 0. 50mm to neutron field was studied in detail. The corrections in the moderator were calculated and re-analyzed with 1-D ANISN code and ENDF/B-VI library data.更多还原