Mini Subcritical Nuclear Reactor
Journal Title: Journal of Nuclear Physics, Material Sciences, Radiation and Applications - Year 2019, Vol 6, Issue 2
Abstract
A mini subcritical nuclear reactor was designed using Monte Carlo methods. The reactor has light water as moderator, natural uranium as fuel, and a 239PuBe neutron source. In the design uranium fuel was modeled in an arrangement of concentric rings: 8.5, 14.5, 20.5 26.5, 32.5 cm-inner radius, 3 cm-thick, and 36 cm-high. Different models were made from a single ring of natural uranium to five rings. For each case, the neutron spectra, the neutron fluence distribution, the effective multiplication factor, the amplification factor, and the reactor power were estimated. The ambient dose equivalent rate outside the mini reactor was also estimated. The maximum value for the keff (0.78) was obtained when five rings of fuel were used; this value is close to 0.86 which belongs to a Nuclear Chicago subcritical reactor which requires almost twice the amount of uranium than the mini subcritical reactor.
Authors and Affiliations
Hector Rene Vega-Carrillo , V. P. Singh , Claudia Rafela Escobedo-Galván , Diego Medina Castro , Arturo Agustin Ortiz Hernandez , Teodoro Rivera-Montalvo , Segundo Agustín Martínez-Ovalle
Keywords
Related Articles
- EP ID EP566987
- DOI 10.15415/jnp.2019.6.02.170-177
- Views 332
- Downloads 0
Stability of Aspartic Acid at 77°K under Gamma Radiation in a Comet Cores Simulation: Implications for Chemical Evolution Studies
The synthesis of organic matter in a simulated primitive environment (terrestrial or extraterrestrial) has been widely studied. The stability of organic matter of biological significance, exposed to energy fields in prim...
Semi Empirical Formula For Neutrinoless Double Beta Decay
A Semi empirical formula for both phase space factor and Nuclear Matrix Element (NME) is developed for neutrinoless double beta decay, and the formula is used to compute the neutrinoless double beta decay half lives. The...
Investigation of the Saturation of Elemental Concentration in the Depth Profile of Low Energy Silver Ion Implants in Silicon
For the efficient absorption of light in a broad wavelength band, Si photovoltaic devices require a high concentration of metal atoms at a shallow depth up to a few 10s of nm in the Si substrates. Low energy (< 50 keV) i...
Calcium Hardness Analysis of Water Samples Using EDXRF Technique
Calcium hardness of water samples has been determined using a method based upon the energy Dispersive X-ray fluorescence (eDXRF) technique for elemental analysis. the minimum detection limit for Ca has been found in the...
A Scaling Law for L-Shell X-Ray Production Cross Sections Induced by Impact of 4He+, 9Be2+, and 14N2+ Ions
Experimental results of L-subshell X-ray production cross sections induced by the impact of several ions heavier than protons were compiled in order to propose possible scaling laws. The ions of interest in this work are...