scholarly journals MEASUREMENT OF RADON GAS CONCENTRATION IN FERTILIZER SAMPLES USING IRRADIATED CR-39 NUCLEAR TRACK DETECTOR

2016 ◽  
Vol 35 (1) ◽  
pp. 21-34
Author(s):  
Nouh, S.A. ◽  
El-Desoky, T. ◽  
Diab, H. M. ◽  
Mokhtar, Samia ◽  
Hassan, M.
Keyword(s):  
Track Detector ◽  
Nuclear Track Detector ◽  
Gas Concentration ◽  
Radon Gas

scholarly journals Measurement of Indoor Radon Gas Concentration in same Region of Baghdad Governorate Using CR-39 Nuclear Track Detector

2017 ◽  
Vol 14 (4) ◽  
pp. 688-691 ◽  
Author(s):  
Baghdad Science Journal
Keyword(s):  
Effective Dose ◽  
Radon Concentration ◽  
Annual Effective Dose ◽  
Indoor Radon ◽  
Track Detector ◽  
Nuclear Track Detector ◽  
Gas Concentration ◽  
Alpha Emitters ◽  
Average Value ◽  
Radon Gas

In this research the activity of radon gas in air in Baghad governorate,Iraq, using “alpha-emitters track registration (CR-39) track detector were measured. This measurement was done for selected areas from Baghdad Governorate, The results obtained shows that the highest average concentrations for Rn-222 is (179.077 Bq/m^3) which was recorded within Al-Shaaib city and less average concentrations was (15.79 Bq/m^3) in the nearby residential area of Baghdad International Airport and the overall average concentrations is (86.508 Bq/m^3) for these regions. Then the radon concentration was measured annual effective dose calculated from radon concentration and found in range from 0.4031 mSv/y to 4.5179 mSv /y with an average value of 2.1824 mSv/y. The annual effective dose of radon was within the allowed international limits.

scholarly journals Experimental Investigation to Determine the Concentration of Radon in Cosmetics Using a Nuclear Track Detector (CR-39)

2021 ◽  
Vol 20 (3) ◽  
pp. 173-177
Author(s):  
Osama Mohammed ◽  
Ahmed R. Mathloo ◽  
Alaa A. Shanef
Keyword(s):  
International Organizations ◽  
Track Detector ◽  
Local Market ◽  
Cosmetic Products ◽  
Nuclear Track Detector ◽  
Gas Concentration ◽  
Surface Evaporation ◽  
Radon Gas ◽  
Gas Measurements ◽  
Different Origins

The nuclear track detector CR-39 is used in the detection of radon gas concentration in selected samples of cosmetics in the local market. Products of wide use are selected and employed in the current study. Six types of cosmetic products of different origins are tested by taking equivalent quantities of these products and putting them in plastic boxes. The detector is left with the samples for a period of 50 days. In addition to measuring the rate of surface evaporation of radon gas, measurements of the annual equivalent dose of radon gas are also carried out. The results show that the highest concentration of radon gas is in Charcoal Facial SCRuB (American origin) and it is equal to 0.0795 Bq/m3, whereas the lowest one in "bb" cream basis (5 in 1) is equal to 0.0355 Bq/m3. Based on specific international organizations and agencies, the concentration of radon in the samples under consideration is within the acceptable limits.

scholarly journals Study on Radon Emanation from Selected Cement Samples by Using Nuclear Track Detector (Cr 39)

2014 ◽  
Vol 42 ◽  
pp. 45-50
Author(s):  
Khalid H. Abass ◽  
Ali Obies Muhsen Al Mayyali ◽  
Inaam H. Kadhim
Keyword(s):  
Radiation Protection ◽  
Track Detector ◽  
International Commission ◽  
Radon Emanation ◽  
Nuclear Track Detector ◽  
Gas Concentration ◽  
Alpha Emitters ◽  
Radon Gas

In this work, we have study the concentration of radon gas in seven cement samples from different regions in Iraq (Kofa, Sulaymaniya, Kubesa, Karbala, Al-Kaem, Basra, and Almas cement) by using alpha-emitters registrations that emitted from radon gas in CR-39 nuclear track detector. Sealed-cup technique that used in this study to determine the alpha emitters from radon gas. The results obtained shown that the highest average radon gas concentration in cement samples which was (55.16 Bq/m3) for Almas samples, while the lowest average radon gas concentration in cement samples which was (24.13 Bq/m3) for Karbala samples. The current results show that the radon gas concentration in all cement samples that studied is below the allowed limit from International Commission of Radiation Protection (ICRP) agency.

scholarly journals Measurement of Soil-Gas Radon in Some Areasof Iraq Using Nuclear Track Detector CR-39

2015 ◽  
Vol 53 ◽  
pp. 90-94
Author(s):  
Khalid Haneen Abass ◽  
Baidaa Y. Mohammed ◽  
Azhar N. Rehem ◽  
Dalia J. Oleiwi
Keyword(s):  
Soil Sample ◽  
General Public ◽  
Track Detector ◽  
Soil Samples ◽  
Soil Gas ◽  
Nuclear Track Detector ◽  
Gas Concentration ◽  
Alpha Emitters ◽  
Radon Gas ◽  
Soil Gas Radon

The health hazards of the radioactive gas radon on general public are well known. In order to understand the level and distribution of 222Rn concentrations in soil-gas in Babil province, we have measured the radon gas concentration in soil samples of different areas in Babylon (Al-werdeiaa, Al-seiahy, Al-Thewrae, Al-muhendisen, Al-keliss, Nadeer) by using alpha-emitters registrations which are emitted from radon gas in nuclear track detector (CR-39). The obtained results have shown that the highest average radon gas concentration in soil sample was found in Al-muhendisen and Al-werdeiaa samples, which was (32.75 Bq/m3), while the lowest average radon gas concentration in soil samples was found in Nadeer sample, which was (25.85 Bq/m3). The present results show that the radon gas concentration in all soil samples is below the allowed limit from (International Commission of Radiation Protection) (ICRP) agency.

scholarly journals Measurement of radon gas concentration in water and soil samples in AL-Najaf governorate by using nuclear track detector (CR-39)

2015 ◽  
Vol 12 (3) ◽  
pp. 603-610
Author(s):  
Baghdad Science Journal
Keyword(s):  
Radon Concentration ◽  
Tap Water ◽  
Track Detector ◽  
Soil Samples ◽  
Exhalation Rate ◽  
Nuclear Track Detector ◽  
Gas Concentration ◽  
Average Value ◽  
Radon Gas

The radon gas concentration in environmental samples soil and water of selected regions in Al-Najaf governorate was measured by using alpha-emitters registrations which are emitted form radon gas in (CR-39) nuclear track detector. The first part is concerned with the determination of radon gas concentration in soil samples, results of measurements indicate that the highest average radon concentration in soil samples was found in (Al-Moalmen) region which was (100.0±7.0 Bq/m3), while the lowest average radon concentration was found in (Al-Askary) region which was (38.5±4.7 Bq/m3), with an average value of (64.23±14.9 Bq/m3) ,the results show that the radon gas concentrations in soil is below the allowed limit from (ICRP) agency which is (200 Bq/m3), while the radon exhalation rate (RER) ranged from (35.23-91.52 µBq/m2h), and average value which was (58.77±13.6 µBq/m2h). The second part is concerned with the determination of radon gas concentration in samples of tap water obtained from networks in dwellings in Al-Najaf governorate, the results indicate that the highest average radon concentration in water samples was found in (Meassan) region which was (0.59±0.08 Bq/L), while the lowest average radon concentration was found in (Al-Jamhorah) region which was (0.16±0.04 Bq/L), with an average value of (0.36±0.1 Bq/L), the present results show that the radon gas concentrations in tap water is below the allowed limit from (ICRP) agency which is (0.5994 Bq/L), while the radon exhalation rate (RER) ranged from (2.15-0.58 ?Sv/y), and average value which was (1.28±0.31 ?Sv/y).

scholarly journals Measurement Radon Gas Concentration in Selected Soil Samples of The of Al-Nada District in Najaf

2018 ◽  
Vol 7 (4.36) ◽  
pp. 678
Author(s):  
Shahad Fadel Kadim ◽  
Heiyam Najy Hady
Keyword(s):  
Background Radiation ◽  
Track Detector ◽  
Soil Samples ◽  
Nuclear Track Detector ◽  
Gas Concentration ◽  
Average Value ◽  
Naoh Solution ◽  
Long Term Measurement ◽  
Reporting Data

In this study fifty (50) of soil samples of AL-Nada district-Najaf Governorate –Iraq have been collected randomly and studied using  solid state nuclear track detectors (CR-39) to determined 226Ra through counting the number of radon tracks by using CR-39 plastic nuclear track detector ,a long- term measurement technique has been considered using special tube of mean (2.5cm) diameter .The detector was placed at (5cm) height and irradiated for 90 days. The chemical etching performed by using (NaOH) solution of 6.25 normality at etching temperature (70C°)for etching period of (7 hrs  ).Concentration of radon 222Rn has ranged from (171.237±0.0062) Bq/m3 to (31.982±0.0027) Bq/m3with  average value  (99.222±0.2476) Bq/m3 while the specific activityof radon has been ranged from (0.471±1.794) Bq/kg to (0.090±7.682) Bq/kg with average value (0.277 1.320)Bq/kgThe results were found to be comparable or lower than similar global reporting data. Accordingly, this area of soil can be considered to have normal levels of natural background radiation.                           

scholarly journals Measurement of Radon Gas Concentrations in Tap Water Samples for Thi-Qar Governorate Using Nuclear Track Detector (CR-39)

Detection ◽  
2016 ◽  
Vol 04 (01) ◽  
pp. 1-8 ◽  
Author(s):  
Liath Ahmed Najam ◽  
Hazim Louis Mansour ◽  
Nada Fadhil Tawfiq ◽  
Mahmood Salim Karim
Keyword(s):  
Water Samples ◽  
Tap Water ◽  
Track Detector ◽  
Nuclear Track Detector ◽  
Radon Gas
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