Browsing Faculty of Engineering, Built Environment & Design (FEng / FBD) by Author "Maina, D M"
Now showing items 1-6 of 6
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A comparison between experimental measurements and Monte Carlo simulation of neutron flux distribution within an Am-Be Howitzer
Olando, E A; Maina, D M; Mustapha, A O (2013-08-01)The spatial thermal and fast neutron flux distributions within the cavity of a 370 GBq Am-Be neutron source-based howitzer were determined experimentally by foil activation and computationally by Monte Carlo method. A ... -
Energy Dispersive X-Ray Fluorescence (EDXRF) in Non-Destructive Testing of Oil Samples
Kinyua, A M; Maina, D M; Mangala, M J; Gatari, M J (2013-08-01)A rapid non-destructive, multi-elemental and ultra-sensitive analytical technique of engine oil analysis is described. Using" an x-ray excitation source and Si(Li) detector for the1 measurements, the deterioration of an ... -
Needs For Education And Training In Radiation Protection: Kenya Experience
Mustapha, A O; Kalambuka, H A; Maina, D M; Onyatta, J; Kioko, J; Masinza, S; Kamande, J (Institute of Nuclear Science & Technology, University of Nairobi, 2007)Many nations, Kenya inclusive, have insufficient number of trained personnel to deal with regulatory and technical radiation safety issues. The IAEA Basic safety standards and the 96/29 Euratom Directive put emphasis on ... -
Non-destructive analysis of Mercury(Hg) by Energy Dispersive X-ray Fluorescence (EDXRF) Technique in Beauty Creams sold in Kenya
Kinyua, A M; Maina, D M; Maina, C; Mangala, M J; Jumba, Isaac O; Gatebe, C K; Gatari, M J (International Atomic Energy Agency (IAEA)Institute of Nuclear Science & Technology, University of Nairobi, 1996-11)Analysis of mercury(Hg) in 100 different beauty creams by energy dispersive x-ray fluorescence technique is described. Each sample was brought to a melt by warming on a water bath at 40-50°C, and then poured onto a 2.5 ... -
Outdoor external doses in the high background radiation areas of Lambwe east location in southwestern Kenya
Mustapha, A O; Patel, J P; Kalambuka, H A; Achola, S O; Maina, D M; Otwoma, D (Institute of Nuclear Science & Technology, University of Nairobi, 2013-07-31)Soils and rocks from a number of areas underlied by carbonatite rocks in Kenya have been associated with high radioactivity. A study, comprising background radiation measurements, and radioecological and health surveys ... -
Status and Prospects in Research Infrastructure Development in Nuclear Analytical Spectrometry and Radiometric Instrumentation Methodologies for Environmental Radiation and Associated Radioactivity Measurements and Modelling Studies in Kenya
Angeyo, H K; Patel, J P; Achola, S O; Odumo, B O; Ogwari, P; Otwoma, D; Wepukhulu, G W; Ntihabose, L; Maina, D M; Mangala, M J; Gatai, I G; Masinza A; Hashim, N O; Masinde, T S; Mayaka, G; Omari, J; Atando, V; Kinyua, R; Mustapha, A O (International Atomic Energy Agency (IAEA)Institute of Nuclear Science & Technology, University of Nairobi, 2010-09)Since 2002 the Department of Physics at the University of Nairobi has established the Applied Nuclear and Radiation Physics Division for graduate training in a variety of nuclear science fields and research, the major line ...