【摘要】 为解决目前71 Ga(n,γ)72 Ga反应和180 Hf(n,γ)181 Hf反应截面实验数据的分歧,在中国原子能科学研究院的600kV高压倍加器和5SDH-2串列加速器上用活化法在0.5～3MeV能区内测量了这两个反应在4个能点的反应截面。并对国内外0.01～4MeV范围内的实验数据进行了修正和评价,最终给出了这两个反应在此能区范围内的推荐值。更多还原

【Abstract】 To clarify the difference amongst the experimental data of 71Ga(n,γ)72Ga and 180Hf(n,γ) 181Hf neutron capture cross sections,measurements with activation method were carried out on 600 kV CCW accelerator and 5SDH-2 tandem accelerator in CIAE.Cross sections of these two reactions at four points of incident energy were acquired.With these results,experimental data in libraries in the energy range from 0.01 MeV to 4 MeV were evaluated and some of them were modified and selected.Finally,with the fitting of the experimental data,the excitation function within the energy range was recommended.更多还原