Activity Concentration of 222Rn Gas,226Ra, 232Th and 40K in Crops and Soil Taken from Safwan Granges Using Active, Passive and Gamma Spectroscopy Techniques

Jebur, Jabbar H.; Subber, A R H

doi:10.9734/bjast/2015/19983

Cited by 3 publications

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“…The RAD7 detector converts alpha radiation to electrical signal by utilizing the alpha technique and is able to separate the different electrical pulses produced from 214 Po and 218 Po with energies of 7MeV and 6MeV correspondingly. The humidity is between 4%-8%, in room temperature ranging from 20 o C to 31 o C. At equilibrium state, the flux (exhalation) of radon from the sample inside the can in terms of area and mass can be measured by [7]:…”

Section: IIImentioning

confidence: 99%

Surface and Deep Soil 222Rn Gas Exhalation Comparison: A Case Study in Tawke, Duhok, Northern Iraq

Kareem

Abdulkareem

Al-Barudi

2019

Eng. Technol. Appl. Sci. Res.

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In this study, 13 different surface locations and 20 mud samples were collected during drilling, from one of the oil wells in the Kurdistan region of Iraq. The samples were taken at different well depths. RAD7 technique was used for finding the radon concentration. The smallest values in soil and surface were 14.12±8.59 and 16±4.24Bq/m3 and the highest were 93.25+21.72 and 137±8.76Bq/m3 respectively. The difference in the depth and surface formation shows the surface formation over depth ratio. The exhalation rate recorded value of the surface was generally higher than that of the depth formations. The exhalation results were finally compared with the recommended values of the International Atomic Energy Agency (IAEA) levels. The data show that it was less than the standards of IAEA.

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Section: IIImentioning

confidence: 99%

Surface and Deep Soil 222Rn Gas Exhalation Comparison: A Case Study in Tawke, Duhok, Northern Iraq

Kareem

Abdulkareem

Al-Barudi

2019

Eng. Technol. Appl. Sci. Res.

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Evaluation of natural radioactivity in selected soil samples collected from northern regions of Oman

Al-Harmali

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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This study explores the radioactivity concentration in soil in the Northern regions of Oman. The naturally occurring radioactive nuclides of the main series, 238U, 232Th, 235U and 40K and artificial radionuclide 137Cs have been studied by means of low level gamma spectroscopy. Majority of the studied valleys (wadis) are descending from Super Hajar Mountains either towards its east part (coastal area) or the west part (desert). Soil samples were collected from headwaters and estuaries of wadis where residences and agriculture activities exist. In soil samples, the results showed that 238U radionuclide was presented in concentrations of the range (4.5 – 24.0) Bq.kg−1while 232Th was found in the range (2.4-20.6) Bq.kg−1. Ranges of 235U and 40K were reported as (0.6-2.5) Bq.kg−1 and (47-296) Bq.kg−1 respectively. Artificial radionuclide 137Cs was found in all soil samples in the range (2.8-11.9) Bq.kg−1. The hazard parameters, dose rate (D), annual effective dose (HR), equivalent radium activity (Raeq), internal hazard index (Hin), external hazard index (Hex) and gamma representative level index (Iγr) were all calculated. The values of D, HR and Raeq were found in the ranges (6.6-33.5) nGy/h, (0.8-4.1)*10−2 mSv/yr and (17.2-88.6) Bq.kg−1 respectively. The values of Hin, Hex and Iγr were all less than 1. These obtained results remained below the optimum admissible values according to UNSCEAR.. The results indicate that the radiation hazard from naturally and artificially radionuclides in soil samples from the area studied in this current work is not significant.

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Measurement of Radium Concentration and Radon Exhalation Rates of Soil Samples Collected From Selected Area of Basrah Governorate, Iraq Using Plastic Track Detectors

Subber¹,

Saadon²,

Hussain³

2017

J. Rad. Nucl. Appl.

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Activity Concentration of 222Rn Gas,226Ra, 232Th and 40K in Crops and Soil Taken from Safwan Granges Using Active, Passive and Gamma Spectroscopy Techniques

Cited by 3 publications

References 0 publications

Surface and Deep Soil 222Rn Gas Exhalation Comparison: A Case Study in Tawke, Duhok, Northern Iraq

Surface and Deep Soil 222Rn Gas Exhalation Comparison: A Case Study in Tawke, Duhok, Northern Iraq

Evaluation of natural radioactivity in selected soil samples collected from northern regions of Oman

Measurement of Radium Concentration and Radon Exhalation Rates of Soil Samples Collected From Selected Area of Basrah Governorate, Iraq Using Plastic Track Detectors

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