Neural network unfolding of neutron spectrum measured by gold foil-based Bonner sphere

作者：Mohammadi Najmeh; Hakimabad Hashem Miri^*; Motavalli Laleh Rafat

来源：Journal of Radioanalytical and Nuclear Chemistry, 2015, 303(3): 1687-1693.

DOI：10.1007/s10967-014-3650-8

• Bonner sphere spectrometer
• Monte Carlo
• Response function
• Artificial neural network

Bonner sphere spectrometer (BSS) based on gold foils, as thermal neutron detectors, is one of the common device for neutron spectrometry. In this paper, the response functions of the Bonner spheres were determined for neutrons with energies ranging from thermal up to 20 MeV using Monte Carlo code. To verify the simulated response functions, the spheres of BSS were irradiated with Am-241-Be neutron source at the Ferdowsi University of Mashhad and the activities of the gold foils were measured. Then the artificial neural network was applied for neutron spectrum unfolding. The results showed a good agreement between unfolded and reference spectrum of ISO 8529-1.

• 出版日期2015-3