Электронный каталог

Статья

Chizhov, K.
Neutron Spectrum Unfolding Method Based on Shifted Legendre Polynomials, Its Application to the IREN Facility : XXX International Seminar on Interaction of Neutrons with Nuclei «Fundamental Interactions and Neutrons, Nuclear Structure, Related Topics», Sharm El Sheikh, Egypt, April 14-18, 2024 : Materials / K.Chizhov, L.Beskrovnaya, A.Chizhov // Физика элементарных частиц и атомного ядра. Письма. – 2025. – Т. 22, № 2. – C. 190. – URL: http://www1.jinr.ru/Pepan_letters/panl_2025_2/24_Chizhov_ann.pdf.

A method for unfolding the neutron energy spectrum from the results of measurements with a Bonner multisphere spectrometer is presented. The method is based on solving the system of the Fredholm integral equations of the first kind using the Tikhonov regularization and decomposing the spectrum into shifted Legendre polynomials. To obtain an optimal solution, an algorithm for selecting the regularization parameter and the number of polynomials is proposed. Spectra were reconstructed for rooms near the IREN (Intense REsonance Neutron source) facility at JINR in the energy range from 10&sup(−8) to 63.1 MeV. The effective dose rate and ambient dose equivalent rate were estimated for the obtained spectra. Results are compared with data obtained using the statistical regularization method (the “Reconst” software)



Спец.(статьи,препринты) = С 344.1л - Нейтронные детекторы. Спектрометры. Монохроматоры
Спец.(статьи,препринты) = Ц 840 в - Программы обработки экспериментальных данных и управление физическими установками$
Спец.(статьи,препринты) = С 341.1ж - Источники радиоактивных излучений. Источники нейтронов$
ОИЯИ = ОИЯИ (JINR)2025