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.

Experimental and simulated study of detector collimation for a portable 3″ × 3″ NaI(Tl) detector system for in-situ measurements
Publication date: Available online 7 August 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): K.U. Kiran, K. Ravindraswami, K.M. Eshwarappa, H.M. Somashekarappa The effect of detector collimator and scatterer thickness on multiple Compton backscattered gamma photons is studied. Gamma photons from a 137Cs source of 5.8 mCi, is allowed to fall on Carbon, Aluminium, Iron and Copper targets and the scattered photons are detected by a properly shielded 76 mm × 76 mm NaI(Tl) scintillation detector located at 90° to the incident beam. To extract the contribution of multiple scattered pho...
Source: Journal of Radiation Research and Applied Sciences - August 8, 2015 Category: Physics Source Type: research

Radiolytically degraded sodium alginate enhances plant growth, physiological activities and alkaloids production in Catharanthus roseus L.
Publication date: Available online 3 August 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): M. Naeem, Tariq Aftab, Abid A. Ansari, Mohd Idrees, Akbar Ali, M. Masroor A. Khan, Moin Uddin, Lalit Varshney Catharanthus roseus (L.) G. Don (Family Apocynaceae) is a medicinal plant that produces indole alkaloids used in cancer chemotherapy. The anti-cancerous alkaloids, viz. vinblastine and vincristine, are mainly present in the leaves of C. roseus. High demand and low yield of these alkaloids in the plant has led to explore the alternative means for their production. Gamma irradiate...
Source: Journal of Radiation Research and Applied Sciences - August 3, 2015 Category: Physics Source Type: research

Insulin, estradiol levels and body mass index in pre- and post-menopausal women with breast cancer
Conclusion: Insulin levels increased in pre- and post-menopausal breast cancer patients while estradiol levels do not showed association with premenopausal breast cancer. High BMI, high insulin and estradiol levels in post-menopausal women may be considered as risk factors for breast cancer. (Source: Journal of Radiation Research and Applied Sciences)
Source: Journal of Radiation Research and Applied Sciences - August 2, 2015 Category: Physics Source Type: research

The effect of gamma irradiation on physical, thermal and antioxidant properties of kraft lignin
Publication date: Available online 2 August 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): N. Rajeswara Rao, T. Venkatappa Rao, S.V.S. Ramana Reddy, B. Sanjeeva Rao Physico-chemical, thermal and antioxidant properties of lignin irradiated with gamma source of doses 30, 60 and 90 kGy have been investigated by Electron spin resonance (ESR), Fourier transform infrared, Differential scanning calorimetry, X-ray diffraction, Scanning electron microscope (SEM) and spectrophotometer techniques. ESR studies confirm the presence of poly-conjugated radicals in unirradiated lignin, whereas irrad...
Source: Journal of Radiation Research and Applied Sciences - August 2, 2015 Category: Physics Source Type: research

A review of radio chemical analysis and estimation of 210Po in soil matrices
Publication date: Available online 18 July 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): N.K. Sethy, A.K. Sutar, P.K. Rath, V.N. Jha, P.M. Ravi, R.M. Tripathi The naturally occurring radionuclide 210Po, arising from the uranium–radium decay series, provides a considerable contribution to the radiation exposure to humans. Polonium is analyzed for a variety of purposes, including for radiological impact assessment or as a tracer of environmental processes. Losses of polonium may occur at temperatures above 100 °C, depending on conditions, requiring particular care in sample pre...
Source: Journal of Radiation Research and Applied Sciences - July 19, 2015 Category: Physics Source Type: research

Recovery of rare earth elements from El-Sela effluent solutions
Publication date: Available online 18 July 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): Y.M. Khawassek, A.A. Eliwa, E.A. Gawad, Sh.M. Abdo The study area of Gabal El Sela at Halaib environ is located at about 20 km west of Abu Ramad City, Egypt. An uraniferous ore material associated with REE was subjected to sulphuric acid leaching for the extraction of uranium mainly and REEs as a by-product. 93.9% of U and 60% of REEs content were leached using −0.5 mm ground ore with 100 g/l sulfuric acid, acid/ore ratio of 2.0 and agitate for 6 h at 40 °C. After uranium extraction, effl...
Source: Journal of Radiation Research and Applied Sciences - July 19, 2015 Category: Physics Source Type: research

The overall effect of reactive rubber nanoparticles and nano clay on the mechanical properties of epoxy resin
Publication date: Available online 8 July 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): Mona A. Ahmed , Usama F. Kandil , Neviene O. Shaker , Ahmed I. Hashem Epoxy resin, a thermoset polymer matrix used for technical applications; exhibit some outstanding properties such as high modulus, high chemical resistance and high dimension stability. However, the high crosslink density of epoxy makes this material brittle with low impact strength and poor resistance to crack propagation, which limits their many end use applications. It is an important objective to explore new routes toward toughe...
Source: Journal of Radiation Research and Applied Sciences - July 11, 2015 Category: Physics Source Type: research

Extension shelf life of batte by using hydrocolloids and gamma irradiation
In this study produced batte with an attempt to prolong the period of its validity by addition 1.5% hydrocolloids, (which is 0.5% sodium alginate, 0.5% k-carrageenan and 0.5% hydroxyl propyl methylcellulose) (HPMC) to hard wheat flour 72% (HWF) to improve materials for mellowness and anti-staling, whereas batte exposed to gamma irradiation at doses 0.5, 1, 1.5, 2, 3 and 5 kGy to decrease microbial load. Hydrocolloids at 1.5% improved the rheological properties of dough farinogragh and aextensograph parameters. The hydrocolloids increase flexibility, rubber and freshness of batte to 24 days compared to 8 days in control s...
Source: Journal of Radiation Research and Applied Sciences - July 11, 2015 Category: Physics Source Type: research

The natural and artificial radionuclides in drinking water samples and consequent population doses
Publication date: Available online 7 July 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): Aydan Altıkulaç , Şeref Turhan , Hasan Gümüş Concentration levels of 226Ra, 228Ra, 40K and 137Cs were determined in 52 drinking water samples collected from the different supplies in Samsun province to evaluate annual effective dose due to the ingestion of the drinking water samples. The activity concentrations of 226Ra, 228Ra and 40K natural radionuclides in the drinking water samples varied from <27 to 2431 mBq L−1, <36 to 270 mBq L−1 and <47 to 2880 mBq L−1 res...
Source: Journal of Radiation Research and Applied Sciences - July 8, 2015 Category: Physics Source Type: research

Depth determination of the subsurface uranium deposits using CR-39 cylindrical technique in Gneissoic granitic rocks, Abu Rushied area, Southeastern Desert, Egypt
Publication date: Available online 7 July 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): Sayed F. Hassan Using solid state nuclear track detectors and employing CR-39 cylindrical technique, the depth of the subsurface uranium deposits were determined. This techniques depends mainly on the nuclear track detector situated in zigzag form inside a polyethylene cylinder of 65 cm length and 7 cm diameter. This technique was applied on a borehole in a granite mass Abu Rushied area, southeast area desert. The obtained results revealed that, the depth of U -ore deposited reached about 89 m with th...
Source: Journal of Radiation Research and Applied Sciences - July 8, 2015 Category: Physics Source Type: research

Spring 2015
Publication date: July 2015 Source:Journal of Radiation Research and Applied Sciences, Volume 8, Issue 3 (Source: Journal of Radiation Research and Applied Sciences)
Source: Journal of Radiation Research and Applied Sciences - July 4, 2015 Category: Physics Source Type: research

Call for Papers - Research Trends in Biotech
Publication date: July 2015 Source:Journal of Radiation Research and Applied Sciences, Volume 8, Issue 3 (Source: Journal of Radiation Research and Applied Sciences)
Source: Journal of Radiation Research and Applied Sciences - July 4, 2015 Category: Physics Source Type: research

Suitability of leaching test methods for fly ash and slag: A review
Publication date: Available online 2 July 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): Manoj Kumar Tiwari , Samir Bajpai , U.K. Dewangan , Raunak Kumar Tamrakar Fly ash and slag leachate pollution can be of great environmental concern due to generation of these wastes in huge quantities from their respective industrial units, mainly coal-based thermal power plants and iron and steel plants. For simulation of natural leaching in laboratory, various leaching methods are available, but selection of a method that can exactly simulate the real-life scenario for accurate estimation of various...
Source: Journal of Radiation Research and Applied Sciences - July 2, 2015 Category: Physics Source Type: research

Green synthesis of silver nanoparticles using Azadirachta indica aqueous leaf extract
In this study, rapid, simple approach was applied for synthesis of silver nanoparticles using Azadirachta indica aqueous leaf extract. The plant extract acts both as reducing agent as well as capping agent. To identify the compounds responsible for reduction of silver ions, the functional groups present in plant extract were investigated by FTIR. Various techniques used to characterize synthesized nanoparticles are DLS, photoluminescence, TEM and UV–Visible spectrophotometer. UV–Visible spectrophotometer showed absorbance peak in range of 436–446 nm. The silver nanoparticles showed antibacterial activities against b...
Source: Journal of Radiation Research and Applied Sciences - June 27, 2015 Category: Physics Source Type: research

A study of radon emitted from building materials using solid state nuclear track detectors
Publication date: Available online 26 June 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): Rafat M. Amin Radon is a natural radioactive gas derived from geologic materials. Inhalation of the short-lived decay products of radon has been linked to an increase in the risk of developing lung cancers if present at elevated levels. Accurate knowledge of exhalation rate plays an important role in characterization of the radon source strength in some building materials. For this purpose, in this study the Can Technique using CR-39 plastic track detectors was used to measure radium content and exhalat...
Source: Journal of Radiation Research and Applied Sciences - June 27, 2015 Category: Physics Source Type: research