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A study of the radon emitted from various building materials using alpha track detectors

, : A study of the radon emitted from various building materials using alpha track detectors. Radiation Measurements. 28(1-6): 613-617

Solid state alpha track detectors using CR-39 plastic detectors were used to measure the radon concentration and the radon exhalation rates from building materials used in Egypt. The radon flux emitted from the surface of the building material was measured by placing CR-39 detector within the hollow holder. Tracks due to alpha particles from radon that migrate from the building materials into the air space in the chamber were registered on the CR-39 detector. The detectors were etched in 6M NaOH solution at 70degree C for 18 hours. An image analyzer system was used to record the tracks on the CR-39 detector. This technique can be used to give a database for average radon exhalation rates from all available building materials and walls or floors.


DOI: 10.1016/s1350-4487(97)00152-2

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