2026-10-13T09:31:37Z https://www.scidb.cn/oai

10.57760/sciencedb.04239 2022-10-24T10:38:06Z

2022-10-24 An Optimized Method for Bonner Sphere Spectrometer Design and Validation by Measuring 252 Cf Spectra doi:10.57760/sciencedb.04239 en A methodology for designing a Bonner sphere spectrometer was proposed based on the singular value decomposition (SVD) and information entropy theory. First, features of Bonner spheres were classified based on SVD, and then, the rationality of the selected spheres was analyzed. Second, the information entropy is used as the quantitative evaluation standard; combined with the unfolding method, the contribution of each Bonner sphere on the information entropy of the unfolded spectra was quantitatively analyzed. The spheres that have high influence on the information entropy of solution spectra can be identified, and then, the information entropy variation of the solution spectra can be suppressed by reducing the count fluctuation of these spheres. According to the proposed method, an optimized spectrometer was developed and applied to measuring 252Cf spectra. Information entropy; singular value decomposition; neutron spectra; Bonner sphere spectrometers Qingjun Zhu Xianfang Meng Wuhui Chen Songlin Liu Kai Huang PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank