Journal of Radiation Research and Applied Sciences 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.

Higher critical current density achieved in Bi-2223 High-Tc superconductors
Publication date: Available online 6 May 2016 Source:Journal of Radiation Research and Applied Sciences Author(s): M.S. Shalaby, H.M. Hashem, T.R. Hammad, L.A. Wahab, K.H. Marzouk, S. Soltan Bi2Sr2Ca2Cu3Ox (Bi-2223) were prepared using a solid state reaction method at different sintering times and temperatures. Structural phase identifications have been done using X-Ray analysis and refinement by Reitveld method which proves the coexistence of Bi-2223 and Bi-2212 phases. The critical transition temperature Tc and critical current density Jc values were measured using superconducting quantum interference dev...
Source: Journal of Radiation Research and Applied Sciences - May 12, 2016 Category: Physics Source Type: research

Lifetime cancer risk due to gamma radioactivity in soils from Tudor Shaft mine environs, South Africa
This study is aimed to evaluate the soil radionuclides' activity concentrations and environmental outdoor gamma dose rates in Tudor Shaft mine environs, South Africa. The excess lifetime cancer risks are also calculated. Outdoor gamma dose rates were determined in 45 soil samples taken from 9 locations. The maximum and minimum average outdoor gamma dose rate taken 1 m above ground was 202.74 ± 14.18 and 131.09 ± 5.43 nGy/h, respectively. Also, the maximum and minimum mean annual effective gamma dose of Tudor Shaft mine environs was 2.49 × 10−1 and 1.61 × 10−1 mSv/y, respectively and the excess lifetime c...
Source: Journal of Radiation Research and Applied Sciences - March 21, 2016 Category: Physics Source Type: research

Assessment of the natural radioactivity levels in Kirkuk oil field
Publication date: Available online 14 March 2016 Source:Journal of Radiation Research and Applied Sciences Author(s): Ali H. Taqi, Laith Abdul Aziz Al-Ani, Abbas M. Ali The natural radioactivity levels of Kirkuk oil field are studied using high resolution gamma rays spectrometry. For this reason, soil samples were collected from three sites in the Iraq North Oil Company: Baba Gurgur, Shurau and old process plant (Terkiz). The activity concentrations obtained for 238U-series (234Th, 214Pb, and 214Bi), 232Th-series (228Ac, 212Pb, and 208Tl) and 40K. The results have been compared with the worldwide average values. ...
Source: Journal of Radiation Research and Applied Sciences - March 14, 2016 Category: Physics Source Type: research

Study of the properties of soil in Kirkuk, IRAQ
Publication date: Available online 2 March 2016 Source:Journal of Radiation Research and Applied Sciences Author(s): Ali H. Taqi, Qahtan A.M. Al Nuaimy, Gullala A. Karem The properties of soil in Kirkuk city (IRAQ) are studied using gamma and neutron radiation. Ten locations are selected for the process of making field measurements on soils at 40–50 cm depth levels then the samples were collected to be studied in the laboratory also. In the field, we measured the density and moisture contents of soils. The laboratory measurement has been performed to obtain mass attenuation coefficients, using gamma spectromet...
Source: Journal of Radiation Research and Applied Sciences - March 2, 2016 Category: Physics Source Type: research

Eco-friendly biosynthesis and characterization of silver nanoparticles using Tinospora cordifolia (Thunb.) Miers and evaluate its antibacterial, antioxidant potential
Publication date: Available online 23 February 2016 Source:Journal of Radiation Research and Applied Sciences Author(s): Kandasamy Selvam, Chinnappan Sudhakar, Muthusamy Govarthanan, Periasamy Thiyagarajan, Arumugam Sengottaiyan, Balakrishnan Senthilkumar, Thangasamy Selvankumar The present study reports an eco-friendly, rapid and easy method for synthesis of silver nanoparticles (AgNPs) using Tinospora cordifolia as a reducing and capping agent. The different factor such as silver nitrate (AgNO3) concentration, fresh weight of T. cordifolia leaf, incubation time, and pH affecting silver reduction was inv...
Source: Journal of Radiation Research and Applied Sciences - February 24, 2016 Category: Physics Source Type: research

Measurement of radon concentration in blood and urine samples collected from female cancer patients using RAD7
This study has been undertaken for the purpose of health risk assessments. The significant of the results is this study indicate to the health risk assessments by showing association between radon concentration of blood and urine and cancers. The concentration of radon in blood samples varies from 417 to 714 Bq m−3 with an average of 570.25 Bq m−3 before irradiation and varies from 463 to 881 Bq m−3 with an average of 734.50 after irradiation. The concentration of radon in urine samples varies from 149 to 289 Bq m−3 with an average of 208.50 Bq m−3 before irradiation and varies from 239 to 1990 Bq m�...
Source: Journal of Radiation Research and Applied Sciences - February 18, 2016 Category: Physics Source Type: research

Modeling of ballistic and trapping effects on the collection efficiency of holes and electrons separately for a planar mercuric iodide detector (HgI2)
Publication date: Available online 18 February 2016 Source:Journal of Radiation Research and Applied Sciences Author(s): Cedric E. Beogo, Ousmane I. Cisse, Luc T. Bambara, Francois Zougmore For the room temperature nuclear detector application, signal created in the detector depends not only to the energy of the incident photon but also to the position of the interaction. This can bring an incomplete charge collection caused by a deep-trapping or a ballistic deficit of charge carrier. Many scientists used to demonstrate their impact on the global efficiency of the charge collection. Here we show this effect, no...
Source: Journal of Radiation Research and Applied Sciences - February 18, 2016 Category: Physics Source Type: research

Fourier transform infrared spectroscopy for irradiation coumarin doped polystyrene polymer films by alpha ray
Publication date: Available online 18 February 2016 Source:Journal of Radiation Research and Applied Sciences Author(s): Mahasin F. Hadi Al-Kadhemy, Zahraa S. Rasheed, Sanaa R. Salim FTIR spectroscopy has been in use broadly to study microscopic areas in polymers for the last years. The FTIR transmission spectra of coumarin laser dye, polystyrene and coumarin doped polystyrene films with different doping ratio of coumarin solution have been studied. These spectra measured and explained for all films before and after Alpha irradiation with different irradiation times. All samples prepared by casting method. FTIR c...
Source: Journal of Radiation Research and Applied Sciences - February 18, 2016 Category: Physics Source Type: research

Environmental impacts of waste produced from processing of different uraniferous rock samples
Publication date: Available online 9 February 2016 Source:Journal of Radiation Research and Applied Sciences Author(s): Ibrahim E. El Aassy, Doaa H. Shabaan, Eman M. Ibrahim Radon exhalation rates from five studied laboratory waste samples resulted from five different sedimentary rock types named sandy dolostone, siltstone –two samples-, marly claystone and black shale were measured using ‘‘Sealed Can technique”. These rates were found to vary between 0.005 and 0.015 Bq m−2 h−1. A positive correlation was found between the radon exhalation rates and the radium activities. The emanation coefficients w...
Source: Journal of Radiation Research and Applied Sciences - February 10, 2016 Category: Physics Source Type: research

Physical parameters determination for gibbsite – Bearing marl, Abu – Thor area, southwestern, Sinai, Egypt
Publication date: Available online 5 February 2016 Source:Journal of Radiation Research and Applied Sciences Author(s): Sayed. F. Hassan For the sake of determination of some physical factors for gibbsite – bearing marl, at the area under consideration, a cylindrical tube of length 60 cm and diameter 6 cm was used. This tube contains ten CR-39 detectors of area 1 cm*1 cm fixed on the inner side of the tube in mutual positions of fixed interval distance 5 cm for each. The measured radon gas concentrations ranged from 1027.87 ± 93.32 Bq/m3 to 1712.39 ± 126.19 Bq/m3, the exhalation rate ranged from 3.39E-...
Source: Journal of Radiation Research and Applied Sciences - February 7, 2016 Category: Physics Source Type: research

Patient dose audit of the most frequent radiographic examinations and the proposed local diagnostic reference levels in southwestern Nigeria: Imperative for dose optimisation
Publication date: Available online 27 January 2016 Source:Journal of Radiation Research and Applied Sciences Author(s): N.N. Jibiri, C.J. Olowookere Diagnostic reference levels (DRLs) is a veritable tool for dose optimisation and patient protection in diagnostic radiology. However, it is essential to have information on the local situation especially in a large hospital with several units or a cluster of healthcare centres within a geographical region with several X-ray units. In the present study, entrance surface doses (ESDs) were measured in twelve (12) healthcare centres consisting of 15 radiological units usin...
Source: Journal of Radiation Research and Applied Sciences - January 27, 2016 Category: Physics Source Type: research

Evaluation of daily intake for some elements of radiation protection concern by inhabitants of greater Cairo area, Egypt
Publication date: Available online 23 January 2016 Source:Journal of Radiation Research and Applied Sciences Author(s): M.H.E. Monged Concentrations of K, Ca, U, Th, Cs, Sr, I, Al, Cd, Cu, Mn, Pb, Ni, Zn and Cr were determined in common foodstuffs consumed by adult inhabitants of greater Cairo area (GCA). Some of these elements have chemical and biological similarity to some of the radionuclides abundantly encountered during nuclear power production and therefore data on these elements could provide important information on their biokinetic behavior. A total of 120 samples were analyzed using Neutron Activation Analy...
Source: Journal of Radiation Research and Applied Sciences - January 23, 2016 Category: Physics Source Type: research

Effect of some biological supplementation on productive performance, physiological and immunological response of layer chicks
In conclusion, biological (B. subtilis and E. faecium) supplementation can be used as one of important additive for enhancing the productive efficiency, and immunity of growing Hy-line chicks. (Source: Journal of Radiation Research and Applied Sciences)
Source: Journal of Radiation Research and Applied Sciences - January 15, 2016 Category: Physics Source Type: research

Evaluation of low dose ionizing radiation effect on some blood components in animal model
Publication date: Available online 14 January 2016 Source:Journal of Radiation Research and Applied Sciences Author(s): H. El-Shanshoury, G. El-Shanshoury, A. Abaza Exposure to ionizing radiation is known to have lethal effects in blood cells. It is predicted that an individual may spend days, weeks or even months in a radiation field without becoming alarmed. The study aimed to discuss the evaluation of low dose ionizing radiation (IR) effect on some blood components in animal model. Hematological parameters were determined for 110 animal rats (divided into 8 groups) pre- and post-irradiation. An attempt to expl...
Source: Journal of Radiation Research and Applied Sciences - January 15, 2016 Category: Physics Source Type: research

Production, optimization and quality assessment of biodiesel from Ricinus communis L. oil
Publication date: Available online 12 January 2016 Source:Journal of Radiation Research and Applied Sciences Author(s): Maryam Ijaz, Khizar Hayat Bahtti, Zahid Anwar, Umar Farooq Dogar, Muhammad Irshad At present, biodiesel is gaining tremendous attention due to its eco-friendly nature and is possible substitute for diesel fuel. Biodiesel as renewable energy source can be produced from edible and non-edible feedstock. Non-edible resources are preferred to circumvent for food competition. In the present study FAME was produced from Ricinus communis L. oil by transesterification with methanol and ethanol in the...
Source: Journal of Radiation Research and Applied Sciences - January 13, 2016 Category: Physics Source Type: research