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Papers by Khairi Abdullah
Buletin Keteknikan Pertanian, 1998
International Journal of Medical Reviews and Case Reports
Background: Workers in cardiac catheterization centers that employ X-rays may be exposed to low q... more Background: Workers in cardiac catheterization centers that employ X-rays may be exposed to low quantities of ionizing radiation for long periods of time, causing damage to human cells and tissues. Blood cell composition testing is an important monitoring technique in the typical diagnostic examination. Objectives: The present study has been designed to evaluate Ionizing radiation's impact on the hematological parameters of occupational exposure in a cardiac catheterization lab at Azadi teaching hospital in Duhok city of Iraq. Methods: The study involved 40 hospital employees working in medical radiation centers who have been exposed to lower doses of ionizing radiation during Radiotherapy or diagnostic and the 32 unexposed workers as control. The correlation between the total dose and the hematological indices of exposed workers is examined using a bivariate regression analysis program. Results: The results looked to be significantly different with (p<0.05) compared to the r...
Journal of Radiation Research and Applied Sciences, 2021
ABSTRACT Radon is a naturally occurring radioactive gas; generated during the decay process of ra... more ABSTRACT Radon is a naturally occurring radioactive gas; generated during the decay process of radium, when alpha particles start to be emitted, turning the radium into radon. The rate of radon gas that escapes from the soil into the atmosphere is called radon exhalation rate. In this study, radon, radium, and both radon surface and mass exhalation rates were measured for 40 samples of soil at four sampling depths (10, 20, 30, and 40 cm) in three districts of Duhok province. For the radon measurement, alpha-sensitive RAD7 detector was used. While radium concentration measured by well type NaI (Tl) detector. Analysis, shows radon surface exhalation rate vary from 24 ± 10.7 to 57 ± 2.5 Bq.m−2h−1 with an average value of 38.7 ± 8.9 Bq.m−2h−1. While mass exhalation rate vary from 1.2 ± 0.9 to 6.7 ± 1.6 Bq.kg−1.h−1 with an average of 4.2 Bq.kg−1.h−1. Furthermore, the results showed that radon exhalation rate and radon concentrations in soil have direct proportion to soil depths. Overall, radon concentration, radium content and both surface and mass exhalation rate in all sample points present a good correlation and less than global mean average recommendation [30].
International Journal of Fundamental Physical Sciences
Due to the poor resolution of (76 mm×76 mm) NaI scintillation detector, ~7.5% for 137Cs peak (661... more Due to the poor resolution of (76 mm×76 mm) NaI scintillation detector, ~7.5% for 137Cs peak (661.5 keV), mutual spectral interference of environmental samples between 137Cs and 214Bi (609 keV) in the decay series of uranium peaks, is a serious problem. This overlapped problem appears in low-level sample spectrum causes overestimation of the specific activity of both nuclides. The main purpose of this work is to resolve this problem and to present a methodology to correct the activity concentrations of 137Cs by NaI(Tl) spectroscopy. In Duhok governorate of Iraq, as a real NORM case, the accumulation of 137Cs is significantly brought by west-north wind and precipitation in the years following nuclear weapons testing and Chernobyl accident in 1986. The developed correlations for any ratio of the measured areas of 214Bi and 137Cs overcome the overestimation and show very good results. The method is approved by comparing the relative error of the measured and corrected activity of Bi wi...
Nuclear Engineering and Technology
Innovaciencia Facultad de Ciencias Exactas, Físicas y Naturales
Introduction: Atmospheric air is directly related to human health and irreplaceable to human life... more Introduction: Atmospheric air is directly related to human health and irreplaceable to human life and thus an influential parameter of environmental science. Radioactive materials in the air may result in exposure of man every day of our lives by inhalation or ingestion of particulate matter suspended or deposited on vegetation or products derived from animals, which has been ubiquitous on earth since its creation. The main goal of this study is to measure the radioactivity concentration of the natural and artificial radionuclides of the Duhok air. Materials and Methods: Twenty samples of air filters were collected from different locations of Duhok City and its surroundings by low volume air samplers pump in the summer/autumn and winter/spring seasons. Air filter samples were prepared and analyzed by a well-type thallium-activated sodium iodide NaI(TI) detector. Results and Discussion: The average activity concentrations of 214Pb, 214Bi, 212Pb, 228Ac, 40K and 137Cs are 4.98±1.20, 4....
Asian Journal of Chemical Sciences
Medicinal & Analytical Chemistry International Journal, 2019
In a time being, ionizing radiation specifically X-ray is widely used in medicine for diagnosis a... more In a time being, ionizing radiation specifically X-ray is widely used in medicine for diagnosis and therapy. At the same time, such beneficial uses may cause potential hazardous situations for patient and the workers within the Cardiac catheterization laboratory. The present work was conducted to evaluate the changes in some components of blood cells after exposure to radiation during the Cardiac catheterization. A statistical comparative study was performed between pre (as control group) and in the early post-irradiation period of blood components on 33 patients. The mean of RBC counts, in post-irradiation are significantly lower than pre-irradiation values at 4.47±0.55 x10¹²/L and 4.84±0.59 x10¹²/L respectively, for plasma hemoglobin Hb, 11.95±1.55 g/dl and 12.71±1,62 g/dl respectively and for WBC are 6.87±1.581 and 7.58±1.577 respectively. There are no significant changes observed between pre and post-irradiated levels in RDW and MCV sizes. Even though the quantitative results of the mean percent-hemolysis level is still within the recommended acceptable levels for clinical significance. Further works are required to search other possible effects.
Buletin Keteknikan Pertanian, 1998
International Journal of Medical Reviews and Case Reports
Background: Workers in cardiac catheterization centers that employ X-rays may be exposed to low q... more Background: Workers in cardiac catheterization centers that employ X-rays may be exposed to low quantities of ionizing radiation for long periods of time, causing damage to human cells and tissues. Blood cell composition testing is an important monitoring technique in the typical diagnostic examination. Objectives: The present study has been designed to evaluate Ionizing radiation's impact on the hematological parameters of occupational exposure in a cardiac catheterization lab at Azadi teaching hospital in Duhok city of Iraq. Methods: The study involved 40 hospital employees working in medical radiation centers who have been exposed to lower doses of ionizing radiation during Radiotherapy or diagnostic and the 32 unexposed workers as control. The correlation between the total dose and the hematological indices of exposed workers is examined using a bivariate regression analysis program. Results: The results looked to be significantly different with (p<0.05) compared to the r...
Journal of Radiation Research and Applied Sciences, 2021
ABSTRACT Radon is a naturally occurring radioactive gas; generated during the decay process of ra... more ABSTRACT Radon is a naturally occurring radioactive gas; generated during the decay process of radium, when alpha particles start to be emitted, turning the radium into radon. The rate of radon gas that escapes from the soil into the atmosphere is called radon exhalation rate. In this study, radon, radium, and both radon surface and mass exhalation rates were measured for 40 samples of soil at four sampling depths (10, 20, 30, and 40 cm) in three districts of Duhok province. For the radon measurement, alpha-sensitive RAD7 detector was used. While radium concentration measured by well type NaI (Tl) detector. Analysis, shows radon surface exhalation rate vary from 24 ± 10.7 to 57 ± 2.5 Bq.m−2h−1 with an average value of 38.7 ± 8.9 Bq.m−2h−1. While mass exhalation rate vary from 1.2 ± 0.9 to 6.7 ± 1.6 Bq.kg−1.h−1 with an average of 4.2 Bq.kg−1.h−1. Furthermore, the results showed that radon exhalation rate and radon concentrations in soil have direct proportion to soil depths. Overall, radon concentration, radium content and both surface and mass exhalation rate in all sample points present a good correlation and less than global mean average recommendation [30].
International Journal of Fundamental Physical Sciences
Due to the poor resolution of (76 mm×76 mm) NaI scintillation detector, ~7.5% for 137Cs peak (661... more Due to the poor resolution of (76 mm×76 mm) NaI scintillation detector, ~7.5% for 137Cs peak (661.5 keV), mutual spectral interference of environmental samples between 137Cs and 214Bi (609 keV) in the decay series of uranium peaks, is a serious problem. This overlapped problem appears in low-level sample spectrum causes overestimation of the specific activity of both nuclides. The main purpose of this work is to resolve this problem and to present a methodology to correct the activity concentrations of 137Cs by NaI(Tl) spectroscopy. In Duhok governorate of Iraq, as a real NORM case, the accumulation of 137Cs is significantly brought by west-north wind and precipitation in the years following nuclear weapons testing and Chernobyl accident in 1986. The developed correlations for any ratio of the measured areas of 214Bi and 137Cs overcome the overestimation and show very good results. The method is approved by comparing the relative error of the measured and corrected activity of Bi wi...
Nuclear Engineering and Technology
Innovaciencia Facultad de Ciencias Exactas, Físicas y Naturales
Introduction: Atmospheric air is directly related to human health and irreplaceable to human life... more Introduction: Atmospheric air is directly related to human health and irreplaceable to human life and thus an influential parameter of environmental science. Radioactive materials in the air may result in exposure of man every day of our lives by inhalation or ingestion of particulate matter suspended or deposited on vegetation or products derived from animals, which has been ubiquitous on earth since its creation. The main goal of this study is to measure the radioactivity concentration of the natural and artificial radionuclides of the Duhok air. Materials and Methods: Twenty samples of air filters were collected from different locations of Duhok City and its surroundings by low volume air samplers pump in the summer/autumn and winter/spring seasons. Air filter samples were prepared and analyzed by a well-type thallium-activated sodium iodide NaI(TI) detector. Results and Discussion: The average activity concentrations of 214Pb, 214Bi, 212Pb, 228Ac, 40K and 137Cs are 4.98±1.20, 4....
Asian Journal of Chemical Sciences
Medicinal & Analytical Chemistry International Journal, 2019
In a time being, ionizing radiation specifically X-ray is widely used in medicine for diagnosis a... more In a time being, ionizing radiation specifically X-ray is widely used in medicine for diagnosis and therapy. At the same time, such beneficial uses may cause potential hazardous situations for patient and the workers within the Cardiac catheterization laboratory. The present work was conducted to evaluate the changes in some components of blood cells after exposure to radiation during the Cardiac catheterization. A statistical comparative study was performed between pre (as control group) and in the early post-irradiation period of blood components on 33 patients. The mean of RBC counts, in post-irradiation are significantly lower than pre-irradiation values at 4.47±0.55 x10¹²/L and 4.84±0.59 x10¹²/L respectively, for plasma hemoglobin Hb, 11.95±1.55 g/dl and 12.71±1,62 g/dl respectively and for WBC are 6.87±1.581 and 7.58±1.577 respectively. There are no significant changes observed between pre and post-irradiated levels in RDW and MCV sizes. Even though the quantitative results of the mean percent-hemolysis level is still within the recommended acceptable levels for clinical significance. Further works are required to search other possible effects.