Emran Eisa Saleh

• Ph D
• Lecturer at University of Aden

Lithium-zinc-borophosphate glasses with the composition of (100-x)[20Li2O-10ZnO-20B2O3-50P2O5]-xNd2O3,x = 0.0 (LZBP:0.0Nd) to 4.0 (LZBP:4.0Nd) wt%, were synthesized. DSC curves were used to determine Tg of the samples. The density of the samples increased from 2.528 to 2.588 g.cm⁻³. The physical properties such as ion concentration and field streng...

Background Workers in the field of radiation therapy are exposed to radiation hazards, and it is necessary to take precautions to limit the radiation dose to nursing staff and physicists. Objective To evaluate the external dose rate (EDR), effective whole-body dose (EHD) and hand equivalent dose (HED) for facilitating staff from radioiodine-131 (RA...

Background Workers in the field of radiation therapy are exposed to radiation hazards, and it is necessary to take precautions to limit the radiation dose to nursing staff and physicists. Objective To evaluate the external dose rate (EDR), effective whole-body dose (EHD) and hand equivalent dose (HED) for facilitating staff from radioiodine-131 (R...

The impact of the insertion of Pb²⁺ ions into the Li2O–BaO–B2O3 based glass matrix has been investigated. The Archimedes' method was used to determine the density (ρ) and, as a result, the molar volume (Vm) of the samples. The ρ of the glasses increased from 2.917 to 5.003 (g/cm³), and the Vm increased from 24.155 to 27.074 (cm³/mol). The optical b...

Background: Patients with thyroid cancer who receive I-131 treatment in radiotherapy centers are considered a source of external dose received by the workers in these centers as well as the family and the population.

The activity concentration of global fallout of 137Cs and naturally- occurring radioactive materials (NORM), which primarily due to the geological and geographical condition of soil. and maybe occur from oil and gas burring processes and consequently accumulate on surface soil around the oil refinery in Aden Assoghra city, Yemen were studied by use...

ZnS nanoparticles (NPs) were used as host materials for Pb doping at different concentrations (0, 2.5, 6.5, and 10.5). Co-precipitation method was used to prepare un-doped and Pb-doped at room temperature. Crystalline of ZnS and Pb-doped ZnS NPs with cubic structure were obtained, as confirmed by powder X-ray diffraction (XRD). Observation of trans...

In the present work, complexes of cobalt(II), copper(II), and zinc(II), 2-amino-4-methylpyrimidineand, and 2,3-diaminopyridine were successfully prepared and characterized using elemental analysis, UV-visible, and FTIR spectroscopy, as well as magnetic susceptibility measurements, molar conductance, TGA analysis, and X-ray diffraction. From element...

Glass samples were synthesized according to 10Li2O + 20CuO + xBi2O3 + (70 − x)B2O3, where x = 0, 10, 20, 30, 40 mol% by the melt-quenching method. The ability of the prepared glass to protect against gamma rays and neutrons was examined experimentally and theoretically. The mass attenuation coefficient (MAC) was calculated experimentally at energie...

It was studied in this research the nuclear radiation shielding behavior and structure properties of the four glass samples which were composed of (80-x) B2O3-10Na2O-10K2O-xBi2O3 (x=0, 15, 30, 45 mol%) and were prepared using the melt-quenching technique. The studied samples were symbolized as Bi0.0, Bi0.15, Bi0.30, and Bi0.45 according to the Bi2O...

[Co(AMPY)(DAPY)Cl2(H2O)].H2O (1) [Cu(AMPY)(DAPY)Cl2(H2O)].H2O (2) [Zn(AMPY)(DAPY)Cl2(H2O)] (3) were prepared from the ligands; AMPY = 2-amino-4-methylpyrimidine (L1), DAPY = 2,3-diaminopyridine (L2) and CoCl2.6H2O, CuCl2.2H2O and ZnCl2 in water/ethanol solutions and the three products characterized by elemental analysis, ultraviolet-visible spectro...

Novel Li2O–ZnO–SiO2–P2O5 glasses doped with Nd2O3 have been prepared via the ordinary melt-quenching technique. Density and molar volume, FTIR spectra, and UV–visible absorption spectroscopy were used to investigate the physical, structural, and optical properties of glasses. The density increases from 2.545 to 2.644 g.cm⁻³ and the molar volume dec...

Nuclear radiation shielding parameters for glass samples composed of 20 mol.% Li2O-40 mol.% ZnO-40 mol.% P2O5 : x wt.% Yb2O3 (x = 0, 0.2, 0.4, 0.6, 0.8, 1, 2) were evaluated. The samples were synthesized using the melt-quenching technique. The prepared samples were encoded Yb0.0, Yb0.2, Yb0.4, Yb0.6, Yb0.8, Yb1 and Yb2 according to the Yb2O3 conten...

ZnO-V2O5-P2O5 glasses were synthesized by the melt-quenching technique. Fourier transformed infrared spectra reveal unshared vanadium-oxygen bonds, resulting in an increase in non-bridging oxygen bonds in the glass network. The densities of the samples were decreased from 3.112 to 2.240 g.cm⁻³, while the molar volumes were increased from 37.827 to...

Background Nuclear medicine or diagnostic radiology personnel are always exposed to low-level radiation from radionuclides used in medical diagnostics, which lead to potential biological hazards or effects. Objective External exposure for workers in two nuclear medicine centers was measured by recruiting 120 patients. Methods Three nuclear medici...

In this paper, the structural, optical and radiation shielding properties of ZnS nanoparticles (NPs) Quantum Dots (QDs) were studied by changing the molarity of the sulfur source used for the synthesis. The molarity change method of the sulfur source is suitable for the fabrication of ZnS nanoparticles of different sizes. X-ray diffraction (XRD), t...

In this research, glass samples composed of (60-x)B2O3-xBi2O3–30PbO–10Li2O (x = 0, 10, 20, 30, 40 mol%) were prepared for utilize as shields for gamma rays and fast neutrons, using the melt-quenching technique. The studied samples were symbolized as Bi0.0–Bi10–Bi20–Bi30–Bi40 according to the Bi content values. The attenuation characteristics of gam...

Nd³⁺ doped lithium-zinc-phosphate glasses were synthesized by melt-quenching technique. FTIR spectra were recorded in the wavenumber range of 400–4000 cm⁻¹. Elastic parameters such as Debye temperature and fractal bond connectivity were calculated. The results revealed that these parameters were influenced by the glass system's composition and dopa...

Composition of 5Li2O-(40-x) Na2O-xZnO-55P2O5 doped with 2 wt% (CdO + Te) where (x = 0, 7, 14, 21, 28, 35 and 40) mol% glass system have been prepared and simulated for their gamma-ray shielding properties. The studied glasses were labeled as LNZP0–LNZP6 according to the values of Na2O and ZnO. Mass attenuation coefficient (MAC), Linear attenuation...

The natural radioactivity of 16 cement raw materials samples from Yemen was determined. The average activity concentrations of 226Ra, 232Th and 40K were 32, 18 and 239 Bq.kg−1 in limestone samples, 43, 35 and 1081 Bq.kg−1 in clay samples, 40, 36 and 840 Bq.kg−1 in sandstone samples, 29, 11 and 161 Bq.kg−1 in iron ore samples, 29, 17 and 166 Bq.kg−1...

Radon gas has been recognized as one of the health hazards to humans. Building materials used for the construction of houses, which are considered as one of the major sources of this gas in indoor environments. The radon exhalation rate, radon concentration as well as the annual effective dose for 46 samples of building materials (granite, ceramic,...

Twenty rock samples (Marble, Biotite gneiss, Migmatite gneiss, Granite gneiss and Mylonites granite) were analyzed to determine the activity concentrations of ²²⁶Ra, ²³²Th and ⁴⁰K in Bq kg⁻¹ and their radiological parameters using gamma-ray spectrometer consisting of NaI (Tl) detector. ²²⁶Ra activity varied in the range from 7.45 ± 1.3 to 148.4 ± 1...

The main purpose of this study was to measure the natural radioactivity in some foodstuffs and agricultural soils from the Abyan Delta in Yemen and study the interaction between soil and foodstuffs by calculating the transfer factor (TF).The annual effective doses to individuals were also calculated and compared with the reference levels. The inves...

The knowledge of environmental hazards resulted from natural radioactivity and human activities is very important for monitoring of environmental contamination. In this study, the environmental hazards due to the natural radioactivity and human activities in Tuban delta in Yemen were discussed and evaluated using gamma ray spectroscopy. Thirty soil...

The knowledge of environmental hazards resulted from natural radioactivity and human activities are very important for monitoring environmental contamination. In this study the environmental hazards due to the natural radioactivity in rocks from catchment area of Tuban delta in Yemen were discussed and evaluated. Eight rocks samples were collected...

Radium, thorium and potassium analyses have been made in farm soil samples collected from Abyan Delta in Yemen using gamma ray spectrometry. Abyan Delta is an agricultural area that produces many agricultural crops in Yemen. The results show that 226Ra, 232Th and 40K radionuclides were present in average concentrations of 34.9 ± 2.9, 84.5 ± 7.8, 12...

This paper presents the concentrations of naturally occurring radionuclides 226Ra, 232Th and 40K measured in Groundwater collected from Abyan delta on Gulf of Aden in Yemen. Concentrations of radionuclides in samples were determined by gamma-ray spectrometer using HPGe detector with specially designed shield. The average activity concentrations wer...

Radium, thorium and potassium analysis have been made in farm soil samples collected from Abyan Delta in Yemen using gamma ray spectrometry. Abyan Delta is an agricultural area produces many agricultural crops in Yemen. The results show that 226Ra, 232Th and 40K radionuclides were present in average concentrations of 34.9  2.9, 84.5  7.8, 1232.7...

Common building materials collected from Aden, Yemen were analyzed for the natural radioactivity of 226Ra, 232Th and 40 K using gamma-ray spectroscopy. The average activity concentrations of 226Ra, 232Th and 40 K in the studied building materials ranges from 20.78 to 68.6, 15.48 to 95.08 and 116.7 to 2636.68 Bq kg- 1, respectively. The measured act...

Water from bedrock frequently contains higher concentrations of natural radionuclides than water from other sources. Groundwater from Assalamia-Alhomira and Juban areas (southeast of Sana'a) and hot spring water from Dempt area (south Sana'a) in Yemen were analyzed for 226Ra, 232Th and 40 K activity concentrations. The average activity concentratio...

The cement industry is considered as one of the basic industries that plays a significant role in the national economy of developing countries. Activity concentration of 226Ra, 232Th, and 40K in 38 samples of local cement types from different Yemeni factories has been measured by using the gamma ray spectrometry and their mean values were in the ra...

The present work investigated the radioactivity level of the rocks samples collected from different sites in Egypt. Twenty one rocks samples were analyzed by gamma-ray spectrometry using NaI(Tl) detector with specially designed shield. The concentration of three natural radionuclides namely 226Ra, 232Th, and 40K has been determined and compared wit...

The level of natural radioactivity in rocks and soil of 32 samples collected from locations at North Sana'a in Yemen was measured. Concentrations of radionuclides in rocks and soils samples were determined by gamma-ray spectrometer using high purity germanium (HPGe) detector with specially designed shield. The average radioactivity concentrations o...

Measurements of the levels of natural background level of the radioactivity from 226Ra and 232Th (and their decay progeny), as well as the primordial radionuclide 40K are the main objective of the current study. The present work investigated the radioactivity level of the rocks, soil and water samples at Assalamya-Alhomira area, Abyan district in Y...

The level of natural radioactivity in rocks and soil of 32 samples collected from locations at North Sana'a in Yemen was measured. Concentrations of radionuclides in rocks and soils samples were determined by gamma-ray spectrometer using HPGe detector with specially designed shield. The average radioactivity concentrations of 226 Ra, 232 Th and 40...

The natural radioactivities of 40K, 226Ra, and 232Th and the fallout of 137Cs in rock and soil samples collected around Juban town in Yemen (south west of Asia) were measured. Concentrations of radionuclides in samples were determined by gamma-ray spectrometer using HPGe detector with specially designed shield. The average radioactivity concentrati...