Hesham M H Zakaly
Biographic Data
| ID | 7905139 |
|---|---|
| NAME | Hesham M H Zakaly |
| GIVEN NAMES | Hesham M H |
| FAMILY NAME | Zakaly |
| SIGNATURE | ZAKALY H M H |
| AFFILIATIONS | Ural Federal University |
| ORCID | 0000-0002-7645-9964 |
| VERIFIED | Yes |
| TOTAL WORKS | 6 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 6 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2021 |
| LATEST PUBLICATION YEAR | 2023 |
| H-INDEX | 0 |
Utilization of three-layers heterogeneous mammographic phantom through MCNPX code for breast and chest radiation dose levels at different diagnostic X-ray energies
Introduction: We report the breast and chest radiation dose assessment for mammographic examinations using a three-layer heterogeneous breast phantom through the MCNPX Monte Carlo code. Methods: A three-layer heterogeneous phantom along with compression plates and X-ray source are modeled. The validation of the simulation code is obtained using the data of AAPM TG-195 report. Deposited energy amount as a function of increasing source energy is ca…
Utilization of artificial intelligence approach for prediction of DLP values for abdominal CT scans
Purpose: This study aimed to evaluate Artificial Neural Network (ANN) modeling to estimate the significant dose length product (DLP) value during the abdominal CT examinations for quality assurance in a retrospective, cross-sectional study. Methods: The structure of the ANN model was designed considering various input parameters, namely patient weight, patient size, body mass index, mean CTDI volume, scanning length, kVp, mAs, exposure time per r…
Assessing the Radiological Risks Associated with High Natural Radioactivity of Microgranitic Rocks
This study aimed to evaluate the radiological hazards of uranium ( 238 U), thorium ( 232 Th), and potassium ( 40 K) in microgranitic rocks from the southeastern part of Wadi Baroud, a northeastern desert of Egypt. The activity concentrations of the measured radionuclides were determined by using a gamma-ray spectrometer (NaI-Tl-activated detector). The mean ( 238 U), ( 232 Th), and ( 40 K) concentrations in the studied rocks were found to be 3680…
Distribution of Radionuclides and Radiological Health Assessment in Seih-Sidri Area, Southwestern Sinai
The current contribution goal is to measure the distribution of the radionuclide within the exposed rock units of southwestern Sinai, Seih-Sidri area, and assess the radiological risk. Gneisses, older granites, younger gabbro, younger granites, and post granitic dikes (pegmatites) are the main rock units copout in the target area. Radioactivity, as well as radiological implications, were investigated for forty-three samples from gneisses (seven h…
An In-Depth Examination of the Natural Radiation and Radioactive Dangers Associated with Regularly Used Medicinal Herbs
The specific activity of U-238 and Th-232, as well as K-40 radionuclides, in twenty-nine investigated medicinal herbs used in Egypt has been measured using a high-purity germanium (HP Ge) detector. The measured values ranged from the BDL to 20.71 ± 1.52 with a mean of 7.25 ± 0.54 (Bq kg -1 ) for uranium-238, from the BDL to 29.35 ± 1.33 with a mean of 7.78 ± 0.633 (Bq kg -1 ) for thorium-232, and from 172 ± 5.85 to 1181.2 ± 25.5 with a mean of 47…
Impact of Eye and Breast Shielding on Organ Doses During Cervical Spine Radiography
Purpose: The study aimed to design and validate computational phantoms (MIRD) using the MCNPX code to assess the impact of shielding on organ doses. Method: To validate the optimized phantom, the obtained results were compared with experimental results. The validation of the optimized MIRD phantom was provided by using the results of a previous anthropomorphic phantom study. MIRD phantom was designed by considering the parameters used in the anth…
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Impact of Eye and Breast Shielding on Organ Doses During Cervical Spine Radiography
Purpose: The study aimed to design and validate computational phantoms (MIRD) using the MCNPX code to assess the impact of shielding on organ doses. Method: To validate the optimized phantom, the obtained results were compared with experimental results. The validation of the optimized MIRD phantom was provided by using the results of a previous anthropomorphic phantom study. MIRD phantom was designed by considering the parameters used in the anth…
Utilization of artificial intelligence approach for prediction of DLP values for abdominal CT scans
Purpose: This study aimed to evaluate Artificial Neural Network (ANN) modeling to estimate the significant dose length product (DLP) value during the abdominal CT examinations for quality assurance in a retrospective, cross-sectional study. Methods: The structure of the ANN model was designed considering various input parameters, namely patient weight, patient size, body mass index, mean CTDI volume, scanning length, kVp, mAs, exposure time per r…
Assessing the Radiological Risks Associated with High Natural Radioactivity of Microgranitic Rocks
This study aimed to evaluate the radiological hazards of uranium ( 238 U), thorium ( 232 Th), and potassium ( 40 K) in microgranitic rocks from the southeastern part of Wadi Baroud, a northeastern desert of Egypt. The activity concentrations of the measured radionuclides were determined by using a gamma-ray spectrometer (NaI-Tl-activated detector). The mean ( 238 U), ( 232 Th), and ( 40 K) concentrations in the studied rocks were found to be 3680…
Distribution of Radionuclides and Radiological Health Assessment in Seih-Sidri Area, Southwestern Sinai
The current contribution goal is to measure the distribution of the radionuclide within the exposed rock units of southwestern Sinai, Seih-Sidri area, and assess the radiological risk. Gneisses, older granites, younger gabbro, younger granites, and post granitic dikes (pegmatites) are the main rock units copout in the target area. Radioactivity, as well as radiological implications, were investigated for forty-three samples from gneisses (seven h…
An In-Depth Examination of the Natural Radiation and Radioactive Dangers Associated with Regularly Used Medicinal Herbs
The specific activity of U-238 and Th-232, as well as K-40 radionuclides, in twenty-nine investigated medicinal herbs used in Egypt has been measured using a high-purity germanium (HP Ge) detector. The measured values ranged from the BDL to 20.71 ± 1.52 with a mean of 7.25 ± 0.54 (Bq kg -1 ) for uranium-238, from the BDL to 29.35 ± 1.33 with a mean of 7.78 ± 0.633 (Bq kg -1 ) for thorium-232, and from 172 ± 5.85 to 1181.2 ± 25.5 with a mean of 47…
Utilization of three-layers heterogeneous mammographic phantom through MCNPX code for breast and chest radiation dose levels at different diagnostic X-ray energies
Introduction: We report the breast and chest radiation dose assessment for mammographic examinations using a three-layer heterogeneous breast phantom through the MCNPX Monte Carlo code. Methods: A three-layer heterogeneous phantom along with compression plates and X-ray source are modeled. The validation of the simulation code is obtained using the data of AAPM TG-195 report. Deposited energy amount as a function of increasing source energy is ca…
Medicine (4 works) · Nuclear medicine (4 works) · Radiation Dose and Imaging (4 works) · Chemistry (3 works) · Radioactive contamination and transfer (3 works) · Radioactivity and Radon Measurements (3 works) · Radiochemistry (3 works) · Radionuclide (3 works) · Uranium (3 works) · Advanced Radiotherapy Techniques (2 works)