Journal of Radiation Research and Applied Sciences 
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This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.Morphological characterization and distribution of antennal sensilla of irradiated female mosquito, Culex pipiens (Diptera: Culicidae) with gamma radiation
Publication date: Available online 10 April 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): Hatem A.M. Ibrahim, S.G. Sawires, A.F. HamzaAbstractCulex pipiens mosquito is considered as one of the most dangerous insect pests that affect humans and animals worldwide as they transmit epidemic and fatal diseases. Antennal structure of the normal and irradiated female mosquito, Culex pipiens was examined using scanning electron microscopy to study the changes in the antennal segments and associated sensilla when 1–2 days old pupae were irradiated at low dose (20Gy), moderate (40Gy) and high (80Gy). The...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research
First trial of SiC/SiC tube fabrication for tungsten monoblock armor
This article is reporting the practical steps of the first trial fabrication of SiC/SiC tube with tungsten mono block armor which it is applicable for fusion reactors actively cooling system, where the proceeding to fabricate actively cooling system during the fusion reaction is very important; to decrease the large amount of heat flux produced from neutron irradiation, so the FEEMA project inside Muroran institute of technology has taken an anticipated trial to fabricate this mock up to contribute actively towards the future fusion reactors. The facilities which have been used during the experimental work representing on ...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research
Radiation awareness among physicians about the hazards of radiological examinations on the health of workers and their patients in Saudi Arabia
This study aims to estimate the knowledge and awareness of physicians about the hazards of radiological examinations on their health and on their patients. 466 questionnaires administered through a Google spreadsheet were answered by physicians from the 20 cities of Saudi Arabia. The sample included 167 radiologists, 106 neonatologists, 19 oncologists, 45 surgeons and 18 orthopaedists, 11 paediatricians and 100 physicians on different specialities. Only 133 of the physicians had received a radiation protection course in the workplace. A total of 73% from participants revealed many gaps in knowledge. For example, 51% of the...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research
Deterministic evaluation of safety parameters and neutron flux spectra in the MNSR research reactor using DRAGON-4 code
Publication date: Available online 22 April 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): Jamal Al Zain, O. El Hajjaji, T. El Bardouni, H. BoukhalAbstractComparative studies for conversion of the fuel from high enriched uranium (HEU) to low enriched uranium (LEU) in the reactor (MNSR) were performed using DRAGON code deterministic. In this work the HEU fuel (UAl4-Al, 90% enriched with Al-clad) and LEU (12.6% UO2 enriched with zircaloy-4 alloy clad) cores were analyzed. This model was utilized in this work to calculate the neutron energy flux spectrum in the first inner and outer irradiation sites...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research
Radiological risks assessment of 238U, 232Th and 40K in fish feeds and catfish samples from selected fish farms in Ado – Ekiti, Nigeria
This study was carried out to ascertain the possibilities of radionuclides pollution due to catfish consumption in the study area. The activity concentrations of radionuclides were determined in catfish and fish feeds using gamma spectrometry method. Committed effective doses were inferred for adults and children of age 10 from the activity concentrations of 40K, 238U and 232Th in catfish. The results show that the annual committed effective doses for adults and children were all lower than the recommended 1.0 mSv y−1 limit for memebers of the public. This shows that the radiation dose incurred from the ingestion of ...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research
Design, fabrication and performance test of a fixed bed batch type pyrolysis plant with scrap tire in Bangladesh
Publication date: Available online 24 May 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): Mohammad Abdul Aziz, M.A. Rahman, Halim MollaAbstractThis paper presents the design and construction of a fixed bed batch pyrolysis reactor. The reactor is further used for the production of pyro oil from scrap tire. The result shows that reactor yields a maximum pyro oil of 42 wt% at the temperature of 400 °C with a feed size of 15 cm3. The produced pyro oil has a higher viscosity of 4.5 cSt and heating value of 42.5 MJ/kg. Thus pyro oil cannot be used directly in engine operation but as a furnace ...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research
Natural radioactivity levels and evaluation of radiological hazards in some Egyptian ornamental stones
Publication date: Available online 12 June 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): A.M. Shohda, W.M. Draz, F.A. Ali, M.A. YassienAbstractGeological materials usually contaminated with naturally occurring radioactive materials (NORM) have become a focus of great attention. The radioactivity concentrations of 226Ra, 232Th and 40K in some ornamental stones in Egypt, were measured using a high-resolution gamma ray spectrometer. The natural radionuclide contents, (Ra) equivalent activities and various hazard indices were also calculated to assess the radiation hazard. It was found that none of t...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research
Effect of inclusion irradiated olive pulp in laying quail diets on biological performance
Publication date: Available online 14 June 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): N.S. Ibrahim, E.M. Sabic, A.M. Abu-TalebAbstractA feeding trial was conducted to study the effect of replacing yellow corn ingredient as the major energy source in laying Japanese quail diets by 0, 5 and 10% each irradiated Olive Pulp (IOP) or un-irradiated Olive Pulp (OP). A total of 216 laying Japanese quail, 12 weeks-old were randomly divided into six equal treatments (36 birds/treatment) with three replicates (8 female, 4 male in each). The experiment was lasted for six weeks to evaluate OP or IOP as a so...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research
Validation of a NaI(Tl) and LaBr3(Ce) detector's models via measurements and Monte Carlo simulations
Publication date: Available online 19 June 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): I. Mouhti, A. Elanique, M.Y. Messous, B. Belhorma, A. BenahmedAbstractThis work relates to the study and characterization of the response function of two scintillation detectors with similar size: 2″×2″ NaI(Tl) and 2″×2″ LaBr3(Ce). The photon detection efficiency and energy resolution curve were measured for the NaI(Tl) detector in the gamma energy range from 60 keV to 1408 keV. A precise mathematical model of the two scintillators was developed using the Monte Carlo simulation code MCNP. Compar...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research
Larvicidal potential of irradiated myco-insecticide from Metarhizium anisopliae and larvicidal synergistic effect with its mycosynthesized titanium nanoparticles (TiNPs)
This study provided the first report of the synergistic effect between irradiated M. anisopliae and their mycosynthesized TiNPs. Such a combination could represent an effective approach for reducing the likelihood of increased insect resistance to entomopathogenic fungi. (Source: Journal of Radiation Research and Applied Sciences)
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research
New approach for antimicrobial activity and bio-control of various pathogens by biosynthesized copper nanoparticles using endophytic actinomycetes
Publication date: Available online 19 June 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): Saad EL-Din Hassan, Salem S. Salem, Amr Fouda, Mohamed A. Awad, Mamdouh S. El-Gamal, Abdullah M. AbdoAbstractThe biosynthesis of nanoparticles by microorganisms especially endophytic species isolated from medicinal plant are the prime concern of researchers. In the present study, a novel, non-toxic, eco-friendly copper nanoparticles was biosynthesized by endophytic actinomycetes isolate Ca-1 and optimization processes have been endeavored. The endophytic actinomycete Streptomyces capillispiralis Ca-1, was iso...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research
Heat production rate from radioactive elements of granite rocks in north and southeastern Arabian shield Kingdom of Saudi Arabia
Publication date: Available online 21 June 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): Adel G.E. Abbady, A.H. Al-GhamdiAbstractDetermining the temperature distribution within the lithosphere requires the knowledge of the radiogenic heat production (RHP) distribution within the crust and the lithospheric mantle. RHP of crustal rocks varies considerably at different scales as a result of the petrogenetic processes responsible for their formation and therefore RHP depends on the considered lithologies. Radioactive heat-production data of granites in north and south-eastern Arabian shield Kingdom o...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research
Evaluation of metallic implant artifact on photon beam calculation algorithms using a CIRS thorax phantom
Publication date: Available online 27 June 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): George Felix Acquah, Philip Oppong Kyeremeh, Francis Hasford, Mary Boadu, Edem Kwablah Sosu, Samuel InkoomAbstractThe aim of this study was to evaluate the effect of metallic artifact on radiation dose calculations for patients with metallic implants and to find ways in reducing the errors associated with actual dose delivered. The error margin in dose calculations using two different treatment planning system (TPS), Collapsed Cone (CC) and Pencil Beam (PB) calculation algorithms and dose measurements in a CI...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research
Evaluation of metallic implant artifact on photon beam calculation algorithms using a CIRS thorax phantom
Publication date: Available online 27 June 2018 Source:Journal of Radiation Research and Applied Sciences Author(s): George Felix Acquah, Philip Oppong Kyeremeh, Francis Hasford, Mary Boadu, Edem Kwablah Sosu, Samuel Inkoom The aim of this study was to evaluate the effect of metallic artifact on radiation dose calculations for patients with metallic implants and to find ways in reducing the errors associated with actual dose delivered. The error margin in dose calculations using two different treatment planning system (TPS), Collapsed Cone (CC) and Pencil Beam (PB) calculation algorithms and dose measurements in a ...
Source: Journal of Radiation Research and Applied Sciences - June 28, 2018 Category: Physics Source Type: research
Heat production rate from radioactive elements of granite rocks in north and southeastern Arabian shield Kingdom of Saudi Arabia
Publication date: Available online 21 June 2018 Source:Journal of Radiation Research and Applied Sciences Author(s): Adel G.E. Abbady, A.H. Al-Ghamdi Determining the temperature distribution within the lithosphere requires the knowledge of the radiogenic heat production (RHP) distribution within the crust and the lithospheric mantle. RHP of crustal rocks varies considerably at different scales as a result of the petrogenetic processes responsible for their formation and therefore RHP depends on the considered lithologies. Radioactive heat-production data of granites in north and south-eastern Arabian shield Kingdom of ...
Source: Journal of Radiation Research and Applied Sciences - June 22, 2018 Category: Physics Source Type: research
