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【摘 要】依据中子入射180，182，183，184，186W核反应总截面、去弹截面、弹性散射角分布实验数据，获得了3套0-20MeV能区的光学模型势参数。在光学模型，扭曲波玻恩近似理论，统一的Hauser-Feshbach理论和激子模型的基础上，对n+180，182，183，184，186W反应各反应道截面和双微分截面进行了系统的计算和分析，所得结果与实验数据符合很好。
【Abstract】With the experimental data of total cross section， inelastic cross section and elastic scattering angular distributions for n+180，182，183，184，186W reactions， three sets of optical potential parameters are obtained at incident neutron energy up to 20 MeV. Based on the theoretical models which include the optical model， the distorted wave Born approximation theory， the unified Hauser-Feshbach theory and the exciton model， the cross section of each reaction channel and double differential cross section are systematically calculated and analyzed for n+180，182，183，184，186W reactions. The results are in good agreement with the experimental data.
【關键词】光学模型；扭曲波玻恩近似理论；弹性散射角分布；双微分截面
【Key Words】optical model； the distorted wave Born approximation theory； elastic scattering angular distribution； doubledifferential cross section
【Abstract】With the experimental data of total cross section， inelastic cross section and elastic scattering angular distributions for n+180，182，183，184，186W reactions， three sets of optical potential parameters are obtained at incident neutron energy up to 20 MeV. Based on the theoretical models which include the optical model， the distorted wave Born approximation theory， the unified Hauser-Feshbach theory and the exciton model， the cross section of each reaction channel and double differential cross section are systematically calculated and analyzed for n+180，182，183，184，186W reactions. The results are in good agreement with the experimental data.
【關键词】光学模型；扭曲波玻恩近似理论；弹性散射角分布；双微分截面
【Key Words】optical model； the distorted wave Born approximation theory； elastic scattering angular distribution； doubledifferential cross section