The paper considers and compares methods for obtaining spectra of fast neutrons using detectors based on a diamond sensor, an organic (plastic) scintillator for separating neutrons and γ-quants, and a spectrometric set of threshold activation detectors. The neutron spectrum was unfolded using the methods of least squares, Tikhonov regularization, neural networks, and maximum entropy, implemented in the MAXED code, as well as the GRAVEL iterative algorithm. In order to form detector response matrices, mathematical simulation methods and analytical calculations were used followed by verification using experimental data. The unfolding quality criteria, according to which the best method is selected, are given.
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Translated from Atomnaya Énergiya, Vol. 133, No. 5–6, pp. 300–304, November–December, 2022.
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Ryabeva, E.V., Denisenko, A.P., Ibragimov, R.F. et al. Methods for Estimating a Neutron Spectrum Using a Diamond Detector, Plastic Scintillator, and Set of Activation Detectors. At Energy 133, 320–325 (2023). https://doi.org/10.1007/s10512-023-01015-1
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DOI: https://doi.org/10.1007/s10512-023-01015-1