| Title: | ASSESSMENT OF EFFECTIVE DOSES BASED ON VARIOUS RADON MEASURING TECHNIQUES |
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| Authors: | Smrekar, Nataša (Author)
Vaupotič, Janja (Mentor) More about this mentor...  |
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| Files: |  Natasa_Smrekar.pdf (1,86 MB)
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| Language: | English |
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| Work type: | Master's thesis (m2) |
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| Tipology: | 2.09 - Master's Thesis |
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| Organization: | FPŠ - Graduate School |
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| Abstract: | In my master's thesis, I have focused on radon gas in 43 buildings used for different purposes (23 schools, 3 kindergartens, 16 offices and a residential house) in which preliminary measurements had shown higher concentrations of radon gas. I carried out measurements of radon and short-lived radon products whilst simultaneously employing different measurement techniques. In all 43 buildings, I measured the instantaneous concentration of radon by using scintillation cells; in 18 buildings, I additionally measured the average concentration of radon by using solid state nuclear track detectors and in 10 buildings, I measured concentration retrospectively with solid state nuclear track detectors. In four selected buildings (a school, a kindergarten, an office and a residential house), I carried out the measurements by using all of the available equipment. I monitored the daily fluctuations of concentration of radon and short-lived radon products by using continuous monitors in 14 buildings. This is how I obtained the factor of radioactive equilibrium between radon and its short-lived products. Based on the results obtained, I calculated the effective doses. As the basis for calculating the doses, I used the instantaneous and average concentrations of radon and the equilibrium factor taken from literature (0.40) or own measurements. I compared the doses and critically evaluated them.
In contrast to the previous research, I researched radon exclusively in areas with increased risk for radon. I studied the influence of the working regime on the concentration of radon in different working environments (i.e. a school, a kindergarten and an office). |
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| Keywords: | Radon, short-lived radon products, measurement technique, scintillation cell, solid-state nuclear track detector, retrospective detector, equilibrium factor, effective dose, comparison. |
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| Year of publishing: | 2016 |
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| Source: | Nova Gorica |
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| COBISS_ID: | 4513275 |
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| URN: | URN:SI:UNG:REP:8PYKNMLJ |
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| Views: | 4069 |
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| Downloads: | 234 |
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| Categories: | Document is not linked to any category. |
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