71Ga(n,γ)72Ga和180Hf(n,γ)181Hf反应截面的测量与评价

⁷¹Ga(n,γ)⁷²Ga和¹⁸⁰Hf(n,γ)¹⁸¹Hf反应截面的测量与评价

摘要: 为解决目前⁷¹Ga(n,γ)⁷²Ga反应和¹⁸⁰Hf(n,γ)¹⁸¹Hf反应截面实验数据的分歧，在中国原子能科学研究院的600 kV高压倍加器和5SDH₂串列加速器上用活化法在0.5~3 MeV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0.01~4 MeV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。

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 5SDH₂ 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.