The cross sections and isomeric ratios of the cross sections for the reaction ¹⁷⁶Lu(n,γ)${}^{177m,g}$Lu were obtained for the first time on a base of experimental and evaluated data with the MCNP simulation of scattered neutron spectra. The cross sections of the reactions ¹⁷⁵Lu(n,p)¹⁷⁵Yb, ¹⁷⁵Lu(n,α)¹⁷²Tm, and ¹⁷⁶Lu(n,α)¹⁷³Tm were precised at a neutron energy of 14.6±0.3 MeV and used for checking up our cross-section determination procedure. The account of scattered neutrons to the nuclear reaction was estimated with the MCNP 4c code and TALYS-1.96, EMPIRE 3.2.3 codes calculations. Even with a proper consideration of scattered neutrom spectra, the ¹⁷⁶Lu(n,γ)${}^{177m,g}$Lu reaction cross section appeared rather high than the calculations with the TALYS, EMPIRE codes and evaluations within the ENDF/B-VIII.0, TENLD-2021, JEFF-3 data bases and libraries.

反应¹⁷⁶ Lu(n, γ )的横截面和横截面的异构体比率${}^{177米,G}$首次基于散射中子谱的MCNP模拟实验和评价数据获得了Lu。反应¹⁷⁵ Lu(n,p) ¹⁷⁵ Yb、¹⁷⁵ Lu(n, α ) ¹⁷² Tm 和¹⁷⁶ Lu(n, α ) ¹⁷³ Tm 的横截面在中子能量 14.6±0.3 MeV 下进行了精确测量并用于检查我们的横截面确定程序。核反应中的散射中子的计算是通过 MCNP 4c 代码和 TALYS-1.96、EMPIRE 3.2.3 代码计算来估计的。即使适当考虑了散射中子谱，¹⁷⁶ Lu(n, γ )${}^{177米,G}$Lu 反应截面似乎比使用 TALYS、EMPIRE 代码和 ENDF/B-VIII.0、TENLD-2021、JEFF-3 数据库和库中的评估进行的计算要高。