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Volume 11, No. 2, 2018, 1439 H

 English Articles

 

 

Transport Theory of Muonic Atoms in Hydrogen Isotope Media

The resonance muonic molecular formation is highly dependent on the energy of muonic atoms. The energy loss of muonic atoms depends on the range of distance traveled in a medium. The resonance molecular formation rate for mdt is maximum if the kinetic energy of the muonic atoms (such as mt) which enter the D2 medium is in the range of 0.4-0.6 eV. In this research, the transport theory is used to study the effect of thickness of the suggested multi-layer system (H/T and D2) on the output kinetic energy of the muonic atoms, mt. The optimum thickness of multi-layer system is also calculated for mdt resonance formation. Finally, the obtained results of the used theoretical method are compared with the experimental results....

 

M. Mahdavi

 

JJP, 2018, 11(2) ,  77-84

226Ra, 228Ra and 40K Concentrations in Some Plant Seeds Consumed in Jordan

Eleven types of seeds consumed by Jordanian people were investigated to determine the concentration levels of 226Ra, 228Ra and 40K radionuclides. The calculated concentration ranges from 0.214 ± 0.017 to 7.583 ± 0.592 Bq/kgdry, 10.629 ± 0.914 Bq/kgdry and 92.0 ± 7.61 to 576 ± 46.22 Bq/kgdry for 226Ra, 228Ra and 40K, respectively. The total annual effective dose that resulted from consuming the selected seeds by ingestion was 35.17 µSv/year, whereas the cancer risk ranges between 1.58×10-6 from fennel and 23.53×10-6 due to beans. However, the average cancer risk value was 7.74×10-6, which is less than the world average cancer risk value 3mSv/year.

 

Khaled A. Al-Khaza'leh
 

JJP, 2018, 11(2) , 85-90

Growth Inhibition of Natural Foods on Calcium Hydrogen Phosphate Dihydrate Crystals

A large number of people are suffering from health problems due to urinary stones. The prevalence of urinary stones is increasing and approximately 12,000 patients are admitted in hospitals every year due to this condition. Brushite [CaHPO42H2O] or calcium hydrogen phosphate dihydrate (CHPD), which is known as urinary crystal, is a stable form of calcium phosphate. This study aims to investigate the influence of natural foods on the formation of calcium hydrogen phosphate (CHPD) crystals to elucidate the inhibitory effect of urinary stone formation from a different perspective. Natural foods used in this study are Solanum lycopersicum (Tomato), Daucus carota (Carrot) and Vitis vinifera (Grapes). ...

 

G. Anushya and    T.H. Freeda

JJP, 2018, 11(2), 91-99

Photoluminescence Behavior of Cu2+xZn1-xSnS4 Thin Films by SILAR Method
 

Cu2ZnSnS4 thin films were deposited on a glass substrate by chemical method. The XRD pattern confirms the formation of tetragonal structure CZTS and peak shift is noticed for Cu doping. The absorption coefficient is in the order of 104cm-1 and the band gap is found to be about 1.9 eV – 1.75 eV. The PL spectra show red shift for higher Cu doping concentrations.

 

J. Henry,                     K. Mohanraj    and      G. Sivakumar

 

JJP, 2018, 11(2), 101-105

Dielectric Relaxation Studies on Binary Polar Mixtures of Diethylene Glycol with Ethyl Benzoate Using Time Domain Reflectometry

It is interesting to study the nature of intermolecular interactions between associative and non-associative polar liquids. Dielectric relaxation measurements on polar-polar binary mixtures of ethyl benzoate with mono diethylene glycol were carried out for eleven different concentrations at temperatures (298K, 303K, 308K and 313K) using Time Domain Reflectometry (TDR) over the frequency range from 10MHz to 10 GHz. The Kirkwood correlation factor and excess dielectric properties were determined and discussed to yield information about the intermolecular interactions in binary system. The non-linear variation has been observed in relaxation time with increasing of alcohol mole concentration. ...

 

K. Umamakeshvari, A. Mohan,                  U. Sankar     and A.Mozes Ezhil Raj

JJP, 2018, 11(2) , 107-114

Analysis of the Force Exerted on an Accelerated Beam of Electrons by Its Own Wakefield in the Laser-Driven Rf-gun

Analytical expressions for the wakefield force acting on an electrons beam, in the RF-photoinjector, during the beam extraction from the cathode, are derived. These expressions are obtained by taking space charge effects and beam motion into account. The former is described in terms of the field's components due to Lienard-Wiechert potential and the method of images, close to the cathode surface. The beam motion is emphasized circumstantiating the fast transition, owing to quick acceleration by the high gradient RF-accelerating field, from thermal velocity, near the immediate vicinity of the cathode, to a non-relativistic velocity at the end of the photoemission. ...

 

N. M. Ershaidat   and W. Salah

 

 JJP, 2018, 11(2), 115-124

 Communications

 

 

Synthesis and Characterization of Monovalent, Divalent and Trivalent Cation Doping of Cu2Se Thin Films Using Chemical Bath Deposition Method

In this work, pure and Bi3+, Cd2+, Na+ - doped Cu2Se thin films were prepared by chemical bath deposition (CBD) method. The effect of doping on optostructural properties was analyzed. XRD patterns show the cubic phase for pure and Bi3+, Cd2+, Na+ - doped Cu2Se thin films. The doped films show higher absorption than Cu2Se in the visible region. The band gap energies of the films were found to be 1.75 eV, 1.70 eV, 3.66 eV, 2.55 eV for pure and Bi3+, Cd2+, Na+ - doped Cu2Se thin films, respectively.

 

A. P. Sudha,               J. Henry,                    K. Mohanrajb    and   G. Sivakumar

 

JJP, 2018, 11(2), 125-130

Hydrothermally Synthesized CoSn(OH)6 Nanoparticles for Electrochemical Performance

Cubic phase CoSn(OH)6 nanoparticles were successfully synthesized by a facile hydrothermal method using NaOH as a mineralizer. The prepared sample was analyzed by using X-ray diffraction (XRD) and the analysis confirmed that the CoSn(OH)6 nanoparticles have a spinel cubic structure with lattice space group Pn3m and mean crystalline size of 25 nm. Field emission scanning electron microscope (FE-SEM) study showed that the cubic with polyhedral shaped surface morphology of the CoSn(OH)6 nanoparticles was seen. ...

 

V. K. Premkumar and G. Sivakumar

 

JJP, 2018, 11(2), 131-135

Synthesis and Characterization of CuMS2 (M= Bi, Sb) Thin Films Prepared by CBD Method

CuMS2 (M= Bi, Sb) thin films (0.1 M) were deposited by chemical bath deposition (CBD) method and characterized by X-ray diffraction (XRD) and UV-Visible (UV) analyses. The XRD pattern confirms the formation of orthorhombic structured CuBiS2 with Cu2S phases as an impurity and orthorhombic structured CuSbS2. UV studies show higher optical absorption in the visible region, which indicates that the resulting material can be used as an absorbing material in solar cells.

 

T. Daniel,                     K. Mohanraj    and    G. Sivakumar

 

JJP, 2018, 11(2), 137-139