Document Details
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Document Type |
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Article In Conference |
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Document Title |
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Study of some Factors Affecting the Absorbed Dose From some Building Materials دراسـة بعـض العـوامل المـؤثــرة على الجـرعـة المـمتـصـة نتيـجة للتـعـرض للإشـعـاع من بعض مواد البناء |
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Subject |
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Safety Issues Radioactivity |
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Document Language |
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English |
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Abstract |
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Forty samples from thirteen different types of building materials cement, wood, marble, granite, gypsum, brick, sand, ceiling for ceramic ceramic, iron, aluminum, insulators for water, and paints, used in Jeddah were analyzer by a gamma spectrometer based on HP Ge detector. Concentrations in Bq/kg dry weight for natural radioactivity, the Ra-226 and Th-232 series, as well as K-40 and the fall out Cs-137 were measured. Also the Raeq were determined Bq/kg for each sample to the value 370 Bq/kg permissible limit of the dose rate (1.5 m Sv/y ).
The penetrability of Rn for some samples (cement, marble, granite, gypsum, brick, sand, ceramic, insulators for water), were checked from the criteria (equation 2); (Bossew et al, 2003). The exposure and the dose rate one meter above the earth
nGy/h & annual dose m Gy were calculated for each samples, As well as the external burden factor Hex were checked
Concentrations for all the samples except one ceramic sample and two granite samples are relatively high, gives Raeq higher or around 370 Bq/kg. Also; the high concentrations of 40K of some wood sample, 2109 Bq/kg increases the absorbed dose. The results indicated that all the samples collected from the market used as building materials in Jeddah are safe in general for the radioactivity levels |
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Conference Name |
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The 2nd International Advances in Applied Physics and Materials Science |
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Duration |
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From : 5 / 6 / 1433 AH - To : 8 / 6 / 1433 AH
From : 26/4/2012 AD - To : 29/4/2012 AD |
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Publishing Year |
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1433 AH
2012 AD |
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Number Of Pages |
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23 |
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Article Type |
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Article |
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Conference Place |
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Turkey, Antalya |
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Organizing Body |
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Gebze Institute of Technology |
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Added Date |
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Tuesday, June 12, 2012 |
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Researchers
| زين محمد العمودي | Al amoudi, zain Mohammed | Investigator | Doctorate | zalamoudi@windowslive.com |
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Files
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33582.pdf
| pdf | الحمايه-من-الإشعاع |
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