入射能量在20MeV以下^(23)Na的中子核数据的计算与评价

Calculation and Evaluation of Neutron Data for ^(23)Na below 20 MeV

计算和评价了23Na的中子核数据,中子入射能量小于20MeV.计算和评价的内容为各反应道的截面、弹性散射角分布、能谱和所有出射粒子的双微分截面,还包括伽马产生值:多重数、角分布和能谱.评价工作以实验数据和核模型计算为基础.我们的理论计算结果和实验数据符合的较好,并且符合于现有的评价库文件JENDL3.3,ENDF/B7,CENDL2和JEFF3.1.

Neutron nuclear data for 23Na has been calculated and evaluated in the neutron energy region up to 20MeV. Calculated and evaluated are all kinds of cross sections, angular distributions of elastic scattering, energy spectra and/or double-differential cross sections of all emitted particles, as well as the gamma production data： multiplicities, and the angular distributions and energy spectra. The evaluation are mainly based on nuclear model caculations. The calculated results are in better accordance with experi- mental data in some aspect and the evaluted data have been compiled into the lastest version of JENDL, ENDF,CENDL and JEFF. Our calculated results are in better accordance with experimental data in some aspect.