scholarly journals Measuring the concentration of uranium for adults teeth in adjacent areas of Tigris river in Baghdad city using nuclear track detector CR-39

2019 ◽  
Vol 11 (21) ◽  
pp. 54-58
Author(s):  
Israa K. Ahmed
Keyword(s):  
Neutron Source ◽  
Fission Track ◽  
Track Detector ◽  
Thermal Neutrons ◽  
Standard Samples ◽  
Nuclear Track Detector ◽  
Fission Tracks ◽  
Tigris River ◽  
Maximum Value ◽  
Three Samples

In this study, the fission track registration technique with the CR-39 detector are using to determination the uranium concentrations for seventeen samples of teeth distributed in four districts in Baghdad City .Five samples taken from both Al-Durra District and Al-Jadiriyia District, Four samples taken from Al-Karrda (Alaatar street) Taken four samples and three samples taken from Al-Zuafrania and by 0.5gm in weight and 1.5 mm in thickness. The uranium concentrations in teeth samples measured by using fission tracks registration in (CR-39) track detector that caused by the bombardment of (U) with thermal neutrons from (241 Am-Be) neutron source that has flux of (5 ×103 n cm-2 s-1). The concentrations values were calculated by a comparison with standard samples. The results showed that the maximum value of uranium is (0.071 ppm) equal to (0.686Bq) in Al-Zuafaraniya district and the minimum is (0.035 ppm) equal to (0.31Bq) in Al-Jadiriah district.

scholarly journals Study a concentration of Uranium for samples of soil from Falluja City using PM-355

2017 ◽  
Vol 14 (1) ◽  
pp. 80-84
Author(s):  
Baghdad Science Journal
Keyword(s):  
Neutron Source ◽  
Uranium Concentration ◽  
Track Detector ◽  
Soil Samples ◽  
Thermal Neutrons ◽  
Military Operations ◽  
Standard Samples ◽  
Fission Tracks ◽  
Two Samples ◽  
Back Ground

In this study a concentration of uranium was measured for twenty two samples of soil distributed in many regions (algolan, almoalmeen, alaskary and nasal streets) from Falluja Cityin AL-Anbar Governorate in addition to other region (alandlos street) as a back ground on the Falluja City that there is no military operations happened on it. The uranium concentrations in soil samples measured by using fission tracks registration in (PM-355) track detector that caused by the bombardment of (U) with thermal neutrons from (241Am-Be) neutron source that has flux of (5×103n cm-2 s-1). The concentrations values were calculated by a comparison with standard samples. The results shows that the uranium concentrations algolan street varies from(1.976- 2.736ppm), almoalmeen street varies from (1.895-2.614ppm), and alaskary street varies from (1.657-2.476ppm), and nasal street (1.657-2.476ppm) the average uranium concentration in other region (alandolos) (0.736-1.588ppm). As a conclusion from the study uranium concentration in the four region above that have military operations is relatively higher than back ground

scholarly journals Measurement of radon and uranium concentration in soil samples from Babylon cement plant using nuclear track detector CR-39

2019 ◽  
Vol 12 (24) ◽  
pp. 68-74
Author(s):  
Israa Kamil Ahmed
Keyword(s):  
Neutron Source ◽  
Uranium Concentration ◽  
Track Detector ◽  
Soil Samples ◽  
Cement Plant ◽  
Thermal Neutrons ◽  
Standard Samples ◽  
Nuclear Track Detector ◽  
Fission Fragments ◽  
Radon Concentrations

In this study, concentrations of radon and uranium were measured for twenty six samples of soil. The radon concentrations in soil samples measured by registrant alpha-emitting radon (222Rn) by using CR-39 track detector. The uranium concentrations in soil samples measured by using registrar fission fragments tracks in CR-39 track detector that caused by the bombardment of U with thermal neutrons from 241 Am-Be neutron source that has flux of 5 ×103n cm-2 s-1.The concentrations values were calculated by a comparison with standard samples The results show that the radon concentrations are between (91.931-30.645Bq/m3).The results show that also the uranium concentrations are in soil samples under 0.051-0.0079ppm.

scholarly journals Uranium concentrations in Soil of Salahdin Governorate Using CR-39 Nuclear Track Detector

2014 ◽  
Vol 11 (2) ◽  
pp. 531-534
Author(s):  
Baghdad Science Journal
Keyword(s):  
Nuclear Reaction ◽  
Neutron Source ◽  
Uranium Concentration ◽  
Nuclear Fission ◽  
Track Detector ◽  
Soil Samples ◽  
Thermal Neutrons ◽  
Standard Samples ◽  
Nuclear Track Detector ◽  
Fission Fragments

Uranium concentrations in soil were determined for ten locations in Salahdin governorate using CR-39 track detector, fission fragments track technique was used, the nuclear reaction of nuclear fission fragments obtained by the bombardment of 235U with thermal neutrons from (Am-Be) neutron source with flux (5000n.cm-2.s-1), the concentration values were calculated by a comparison with standard samples. The results of the measurements show that the uranium concentration in soil samples various from 0.42±0.018ppm in Beji province to 0.2±0.014 ppm in Tooz province with an average (0.31±0.08ppm), the values of uranium concentration in all samples are within the permissible limits universally.

scholarly journals Measuring Uranium in the Soil of Some Area in Missan Governorate/ Iraq

2011 ◽  
Vol 8 (1) ◽  
pp. 39-43
Author(s):  
Baghdad Science Journal
Keyword(s):  
Neutron Source ◽  
Soil Surface ◽  
Track Detector ◽  
Soil Samples ◽  
Thermal Neutrons ◽  
Standard Samples ◽  
Fission Tracks ◽  
Different Depths

Concentrations of uranium were measured in this study for twenty soil samples from four areas with different depths (soil surface-20-40-60-80)cm .The study regions include Missan Governorate (Al-Iskan area,Al-Shibbana area ,Hai-Al Moualimin Al Jadied area ,Sector 30 area). The Uranium concentrations in soil samples measured by using fission tracks registration in (CR-39) track detector that caused by the bombardment of (U-283) with thermal neutrons from (241Am-Be) neutron source that has flux neutron thermal of (5 ×103 n cm-2 s-1). The concentrations values were calculated by a comparison with standard samples. Through out the result, it was found that averages of uranium concentrations in soil samples were as the following : Al - Iskan area (0.404 ± 2.765) ppm, Al - Shibbana area (0.432 ± 1.719) ppm, Hai - Al - Moualimin Al - Jadied (0.236 ± 2.320) ppm, Sector 30 area (2.158±0.631) ppm.

scholarly journals Determination of Uranium Concentration in child teeth by track detector CR-39 in same middle and south regions of Iraq

2011 ◽  
Vol 8 (4) ◽  
pp. 909-913
Author(s):  
Baghdad Science Journal
Keyword(s):  
Neutron Source ◽  
Uranium Concentration ◽  
Track Detector ◽  
Thermal Neutrons ◽  
Fission Tracks

The study of determing Uranium concentration in samples of teeth is the first of its kind in the Iraq . In this study Uranium concentration has been measured was (32) samples of child teeth distributed on the some of middle and south governorate of Iraq (Muthana – Dekar – Basrah – Najaf – Karbalah – Waset – Babel – Baghdad) . The Uranium concentration in teeth samples has been measured by using fission tracks registration in (CR-39) track detector that caused by the bombardment of (U235) with thermal neutrons falx from (24Am.Be) neutron source that has flux of (5x103n.cm-2S-1). The result obtained show that the Uranium concentrations in governorates were (0.18ppm), (0.172ppm), (0.160ppm), 0.150ppm) (0.89ppm), (0.07ppm) , (0.052ppm), (0.020ppm) (0.089ppm), (0.07ppm) , (0.052ppm) , (0.020ppm) (0.089ppm), (0.07ppm) , (0.052ppm) , (0.20ppm) respectively . As a conclusion from the study of Uranium concentration in Muthana governorate that found to be higher than Dekar and Basrah , Najaf , Karbalah, Waset , Babel and Baghdad . These result are higher thin the Uranium concentrations in one studies in Barazil – Bahia state its (0.016ppm) , and in another study in British about (0.018-0.079ppm).

Fission Track Detection Using Automated Microscopy

2017 ◽  
Vol 3 (3) ◽  
Author(s):  
Aryeh M. Weiss ◽  
Itzhak Halevy ◽  
Naida Dziga ◽  
Ernesto Chinea-Cano ◽  
Uri Admon
Keyword(s):  
Solid State ◽  
High Resolution ◽  
Nuclear Forensics ◽  
Fission Track ◽  
Track Detector ◽  
Large Area ◽  
Nuclear Track Detector ◽  
Human Errors ◽  
Fission Fragments ◽  
Automated Microscopy

Detection of microscopic fission track (FT) star-shaped clusters, developed in a solid state nuclear track detector (SSNTD) by etching, created by fission fragments emitted from particles of fissile materials irradiated by neutrons, is a key technique in nuclear forensics and safeguards investigation. It involves scanning and imaging of a large area, typically 100–400 mm2, of a translucent SSNTD (e.g., polycarbonate sheet, mica, etc.) to identify the FT clusters, sparse as they may be, that must be distinguished from dirt and other artifacts present in the image. This task, if done manually, is time consuming, operator dependent, and prone to human errors. To solve this problem, an automated workflow has been developed for (a) scanning large area detectors, in order to acquire large images with adequate high resolution, and (b) processing the images with a scheme, implemented in ImageJ, to automatically detect the FT clusters. The scheme combines intensity-based segmentation approaches with a morphological algorithm capable of detecting and counting endpoints in putative FT clusters in order to reject non-FT artifacts. In this paper, the workflow is described, and very promising preliminary results are shown.

scholarly journals Measured the concentrations of uranium in human blood samples from Iraq using CN-85 nuclear track detector

2017 ◽  
Vol 1 (4) ◽  
Author(s):  
Essam M. Rasheed
Keyword(s):  
Human Blood ◽  
Optical Microscope ◽  
Track Detector ◽  
Alpha Particles ◽  
Healthy People ◽  
Standard Samples ◽  
Nuclear Track Detector ◽  
Blood Samples ◽  
The Military

The purpose of this study is to measure the concentration of uranium through 20 samples of human blood from healthy people and patients with leukemia, where the concentration of uranium increased by working in an unhealthy environment that led to people being exposed to cancer. The CN-85 was used to measure and determine alpha particles. Blood samples were dried and 0.5 g of each sample was obtained. The reagent was then bonded to a neutron stream using an (Am-Be) and 5 × 103 n.cm 2s-1 for seven consecutive days. The reagents were then scrapped with NaOH and 6.25 N for five hours. The intensity of the effect was measured by the optical microscope and compared with standard samples prepared in vitro. The increase in the proportion of uranium in the blood was caused by the military wars in 1991 and 2003 where the use of depleted uranium in the munitions and the war in abundance. The concentrations of uranium for healthy people ranged from (0.077 to 0.216 ppb), at a rate of (0.121 ppb). Patients ranged from (1,330-1.960 ppb) at a rate of (1.671 ppb). The acceptable value from ICRP is (0.810 ppb).  

scholarly journals Measurement of Uranium Concentration in Soil of Middle of Iraq using CR ?V 39 Track Detector

2011 ◽  
Vol 8 (2) ◽  
pp. 451-455 ◽  
Author(s):  
Baghdad Science Journal
Keyword(s):  
Water Samples ◽  
Uranium Concentration ◽  
Nuclear Fission ◽  
Track Detector ◽  
Soil Samples ◽  
Thermal Neutrons ◽  
Standard Samples ◽  
Fission Fragments ◽  
South Of Iraq ◽  
Soil And Water

The aim of this research is to determine the uranium concentration in soil and water samples taken from different locations from the middle and south of Iraq using fission fragments track registration. Twelve samples of soil and water were taken from middle and South of Iraq. The nuclear reaction used as a source of nuclear fission fragments is U-235 (n.f) obtained by bombardment U-235with thermal neutrons from (Am-Be) neutron source with flux (5X103 n.cm-2.s-1). The concentration values were calculated by a comparison with standard samples recommended by IAEA.The results of the measurements show that the uranium concentration in soil samples were in Thekar (16.38 ppm), AL-Basra (16.1ppm) and (0.78 ppm) in Baghdad, from the results which show that this governorate were contaminated with depleted uranium after the Wars against Iraq . The uranium concentration in the water samples of Tigers river were in AL-Qurna (8.85 ?g/l) and in AL-Suwera (4.72 ?g/l).

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