Characterization of photo-neutrons produced by 150 MeV and 1 GeV electrons impinging on high Z-metallic targets for neutron resonance spectroscopy
ElSaady, E., ElAshmawy, M., Abu-Zeid, H., Nada, A., Ragab, F. (2017). Characterization of photo-neutrons produced by 150 MeV and 1 GeV electrons impinging on high Z-metallic targets for neutron resonance spectroscopy. EKB Journal Management System, 34(part1), 216-226. doi: 10.21608/jsrs.2018.14109
ElTayeb ElSaady; Mustafa M. M. ElAshmawy; Hosnia M. Abu-Zeid; Afaf A. Nada; Fatma ElZahraa M. Ragab. "Characterization of photo-neutrons produced by 150 MeV and 1 GeV electrons impinging on high Z-metallic targets for neutron resonance spectroscopy". EKB Journal Management System, 34, part1, 2017, 216-226. doi: 10.21608/jsrs.2018.14109
ElSaady, E., ElAshmawy, M., Abu-Zeid, H., Nada, A., Ragab, F. (2017). 'Characterization of photo-neutrons produced by 150 MeV and 1 GeV electrons impinging on high Z-metallic targets for neutron resonance spectroscopy', EKB Journal Management System, 34(part1), pp. 216-226. doi: 10.21608/jsrs.2018.14109
ElSaady, E., ElAshmawy, M., Abu-Zeid, H., Nada, A., Ragab, F. Characterization of photo-neutrons produced by 150 MeV and 1 GeV electrons impinging on high Z-metallic targets for neutron resonance spectroscopy. EKB Journal Management System, 2017; 34(part1): 216-226. doi: 10.21608/jsrs.2018.14109

Characterization of photo-neutrons produced by 150 MeV and 1 GeV electrons impinging on high Z-metallic targets for neutron resonance spectroscopy

Journal of Scientific Research in Science
Article 23, Volume 34, part1, September 2017, Page 216-226  XML PDF (268.3 K)
Document Type: Original Article
DOI: 10.21608/jsrs.2018.14109
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Authors
ElTayeb ElSaady email 1; Mustafa M. M. ElAshmawy2; Hosnia M. Abu-Zeid3; Afaf A. Nada3; Fatma ElZahraa M. Ragab3
1Egyptian Nuclear and Radiological Regulatory Authority, Cairo, Egypt.
2Egyptian Nuclear and Radiological Regulatory Authority, Cairo, Egypt
3Faculty of women for Arts, Sci. and Ed., Ain Shams University, Cairo, Egypt.
Abstract
Monte Carlo calculations have been performed using MCNP code to study the generation, angular distribution and energy spectrum of photo-neutrons for 1 GeV and 150 MeV electron beam energies impinging on different thickness of Tungsten, Tantalum and Lead targets. It is noticed that the photo-neutron yield increases as the target thickness increases then saturates beyond an optimized thickness of the target. Moreover, the photo-neutron yield shows significant increase as the electron energy increases. At the optimized thickness, the angular distribution of photo-neutrons is found almost isotropic for 150 MeV electrons and anisotropic for 1 GeV electrons. Further, by increasing the electron energy and/or the target thickness the angular distribution is found to be forward peaked. The energy spectrum of photo-neutrons can be well described by a Maxwellian distribution for both electron energies. Such calculations can help in developing a photo-neutron source based time of flight facility (TOF) for elemental and isotopic identification via neutron resonance spectroscopy. Photo-neutron yields, angular distribution, mean energy, energy spectrum and nuclear temperature for 1 GeV and 150 MeV electron energies and different target materials are presented.
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