Reaction Cross Section Calculations in Neutron Induced Reactions and GEANT4 Simulation of Hadronic Interactions for the Reactor Moderator Material BeO

Yıl 2016, Cilt: 20 Sayı: 2, 0 - , 26.05.2016

Veli Çapalı Mert Şekerci , Hasan Özdoğan , Abdullah Kaplan

Öz

BeO is one of the most common moderator material for neutron moderation; due to its high density, neutron capture cross section and physical-chemical properties that provides usage at elevated temperatures. As it’s known, for various applications in the field of reactor design and neutron capture, reaction cross–section data are required. The cross–sections of (n,α), (n,2n), (n,t), (n,EL) and (n,TOT) reactions for ⁹Be and ¹⁶O nuclei have been calculated by using TALYS 1.6 Two Component Exciton model and EMPIRE 3.2 Exciton model in this study. Hadronic interactions of low energetic neutrons and generated isotopes–particles have been investigated for a situation in which BeO was used as a neutron moderator by using GEANT4, which is a powerful simulation software. In addition, energy deposition along BeO material has been obtained. Results from performed calculations were compared with the experimental nuclear reaction data exist in EXFOR.

Anahtar Kelimeler

Reaction cross-section; Hadronic interactions; Geant4; TALYS; EMPIRE; Beryllium oxide

Kaynakça

• [1] Mocko, M., Daemen. L.L., Hartl, M.A., Huegle, Th., Muhrer, G., 2010. Experimental study of potential neutron moderator materials. Nucl. Instr. Meth. A 624 (1), 173-179.
• [2] Beeston, J.M., 1970. Beryllium metal as a neutron moderator and reflector material. Nucl. Eng. Des. 14, 445-474.
• [3] Kaplan, A., Çapalı, V., 2014. Cross section computations on several structural fusion materials for (γ,3n) reactions in the photon energy range of 20–110 MeV. J. Fusion Energ. 33 (3), 299-303.
• [4] Koning, A., Hilaire, S., Goriely, S., 2013. TALYS–1.6 A Nuclear Reaction Program, User Manual (NRG, The Netherlands), First Edition: December 23, 2013.
• [5] Herman, M., Capote, R., Carlson, B.V., Obložinský, P., Sin, M., Trkov, A., Wienke, H., Zerkin, V., 2007. EMPIRE: Nuclear reaction model code system for data evaluation. Nucl. Data Sheets 108 (12), 2655-2715.
• [6] Herman, M., Capote, R., Sin, M., Trkov, A., Carlson, B.V., Obložinský, P., Mattoon, C.M., Wienke, H., Hoblit, S., Cho, Y.S., Nobre, G.P.A., Plujko, V., Zerkin, V., 2013. EMPIRE–3.2 Malta modular system for nuclear reaction computations and nuclear data evaluation, User's Manual.
• [7] Allison, J., et al., 2006. Geant4 developments and applications. Nucl. Sci. 53 (1), 270-278.
• [8] Brookhaven National Laboratory, National Nuclear Data Center, EXFOR/CSISRS (Experimental Nuclear Reaction Data File). Database Version of October 06, 2015 (2015), (http://www. nndc.bnl.gov/exfor/)
• [9] Griffin, J.J., 1966. Statistical model of intermediate structure. Phys. Rev. Lett. 17, 478-480.
• [10] Cline, C.K., 1972. Extensions to the pre-equilibrium statistical model and a study of complex particle emission. Nucl. Phys. A 193 (2), 417-437.
• [11] Ribansky, I., Oblozinsky, P., Betak, E., 1973. Pre-equilibrium decay and the exciton model. Nucl. Phys. A 205, 545-560.
• [12] Agostinelli, S., et al., 2003. Geant4—a simulation toolkit. Nucl. Instr. Methods Phys. Res A. 506 (3), 250-303.
• [13] Geant4 Collaboration, 2014. Geant4 User's Guide for Application Developers. (http://geant4.web.cern.ch/geant4).
• [14] Marion, J.B., Levin, J.S., Cranberg, L., 1959. Elastic and nonelastic neutron cross sections for beryllium. Phys. Rev. 114, 1584-1589.
• [15] Sugimoto M., Guenther, P.T., Lynn, J.E., Smith, A.B., Whalen, J.F., 1989. The interaction of fast neutrons with beryllium. Nucl. Sci. Eng. 103 (1), 37-45.
• [16] Foster Jr. D.G., Glasgow, D.W., 1971. Neutron total cross sections, 2.5-15 MeV. I. Experimental. Phys. Rev. C 3, 576-603.