Determination of natural uranium in biological samples using the solid state nuclear track detector method

Golubenkov, A.M.; Malenchenko, A.F.

doi:10.1007/bf02517021

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…We have utilized passive devices using the modified version of Marcov's method [15] which is sensitive to α-particles in the energy-spectrum of the radon-222. In addition, some undesired factors such as humidity, low temperature, moderate heating and light have minor effects on our method (solid state nuclear track detectors SSNTDs) [16,17]. We have used LR-115 Type 2 (Pelliculable) plastic track detectors (each with a size of about 1.5 cm × 2 cm).…”

Section: Experimental Techniquesmentioning

confidence: 99%

Physical Factors Affecting the Interior Radon-Concentrations

Abdalla¹,

Jastaniah²

2013

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Researchers have realized that radon-contaminated air inside buildings is a principal way of human exposure to certain healthy-risks. A model is developed to estimate radon concentrations which consider various parameters: in indoor air radon (radon-222) concentration, air permeability of ground, air pressure difference between outdoor and indoor at ground level, ventilation of building ground and number of air changes per hour due to ventilation. The radon-222 transport into building might dominated by diffusion, pressure driven flow or/and a mixture of both depending on the actual values of the various parameters. So, in several and regular periods of time: January, April, July and October, radon-222 concentrations have been measured in ten rooms of five elementary schools and in five rooms of one high school at Qena city (Upper Egypt). This has been carried out using alpha scintillation counters. We have noticed that in three rooms the value has exceeded 200 Bq·m . The experimental results of the present work have been well fitted with the presented model (calculations) which supports the validity of the presented model. So, to decrease the level of indoor air radon-222 concentrations and to reduce its harmful effects it is recommended to follow the suggestions in the present study and to limit as possible the use of ceramic in the building construction, increase the hours of ventilation and to restrict the use of underground floors in buildings, the underground Metro and garage parking should be carefully (and even mandatory) ventilated.

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Section: Experimental Techniquesmentioning

confidence: 99%