Organic scintillators detect neutrons by scattering reactions with hydrogen nuclei (protons) in organic compounds. The recoil protons then produce the light output from the scintillator. The energy spectrum of neutrons impinging on the scintillator has to be determined from this light output using a so-called unfolding algorithm. However, this problem is ill-posed and therefore difficult to solve. In this study, a new method for unfolding neutron spectra is presented. This method uses B-splines approximation of neutron energy spectrum. Results of this method are shown for test data and experimental data and compared to the results of the previously developed unfolding method.

中文翻译：

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使用样条函数展开中子能谱

有机闪烁体通过与有机化合物中氢核（质子）的散射反应来检测中子。然后反冲质子产生闪烁体的光输出。必须使用所谓的展开算法从该光输出中确定撞击闪烁体的中子的能谱。然而，这个问题是病态的，因此很难解决。在这项研究中，提出了一种展开中子谱的新方法。该方法使用中子能谱的 B 样条近似。该方法的结果显示了测试数据和实验数据，并与先前开发的展开方法的结果进行了比较。