ABSTRACT. The multiple Compton backscattering (MCBS) technique has been used to investigate the detection and imaging corrosion under the insulation pipe. An energy source with a mono -energy 0.662MeV of 137 Cs has been used. Gamma ray photons have been allowed to be incident vertically on the insulator pipe whose outside diameter, wall and asbestos insulation thickness are (28, 1, 4)cm respectively. The steel pipe has a corrosion defect with a diameter 8 cm. The count rate of scattered γ -photons with scattering angle in the range (130 -140) degrees has been collected by NaI(Tl) detector with different radius. Assuming the source and detector locations are in the same side from the pipe. Monte Carlo simulation has been written in FORTRAN95 language programming to follow the history of photons. This study provides the ability of this technique to detect and imaging the corrosion under the insulator pipes. The radius of detector which gives good results for corrosion detection and imaging is 6cm among five different selected radiuses.
The multiple Compton backscattering (MCBS) technique has been used to investigate the detection and imaging corrosion under the insulation pipe. An energy source with a mono – energy 0.662MeV of 137Cs has been used. Gamma ray photons have been allowed to be incident vertically on the insulator pipe whose outside diameter, wall and asbestos insulation thickness are (28, 1, 4) cm respectively. The steel pipe has a corrosion defect with a diameter 8 cm. The count rate of scattered γ – photons with scattering angle in the range (130 – 140) degrees has been collected by NaI(Tl) detector with different radius. Assuming the source and detector locations are in the same side from the pipe. Monte Carlo simulation has been written in FORTRAN95 language programming to follow the history of photons. This study provides the ability of this technique to detect and imaging the corrosion under the insulator pipes. The radius of detector which gives good results for corrosion detection and imaging is 6cm among five different selected radiuses.
Type 2 diabetes mellitus (DM) is a chronic condition marked by hyperglycemia. In order to ascertain the linkage in individuals with diabetes and non-diabetes of various ages, hyperglycemia in DM is closely related to Hba1c and hematological tests. Samples and data from the ministry of science and technology's lab were gathered utilizing questionnaires and biochemical data. The difference in the means of fasting blood sugar (FSB), white blood cells (WBC), hemoglobin (Hb), and packed cell volume (PCV), between the patients and the control group is shown by the hemoglobin a1c (Hba1c), which is statistically significant (P 0.01).
ABSTRACT. Radiography inspection have been used in this work to detects and image the corrosion in the outside surface of the pipe. Gamma ray with 0.662 MeV from 127 Cs source have been chosen for this inspection while NaI(Tl) detector is use to detect and collect the scatter photons with radius 6cm. A simulation follow the history of photon by using Fortran Language and concerned on the effect of Compton scattering angle on the count rate of scatter photons and on the quality of the image. The Compton scattering angles that study are in the range from (90-100) to (170-180) with step 10. The results show that the greater count rate of scattered photons is improved in the angle range (90-100). Therefore, the count rate decreases with increasing the angle range especially within the range (170-180) which has a minimum count rate and affect on the image resolution, then it could not distinguish between the corrosion and non-corrosion region.
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