The influence of the working conditions on the equilibrium factor F and the unattached fraction fp

Streil, T. and Reichelt, A. and Reineking, A. (1999) The influence of the working conditions on the equilibrium factor F and the unattached fraction fp. Il nuovo cimento C, 22 C (3-4). pp. 551-556. ISSN 1826-9885

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We report on the influence of the working conditions on the dose estimation. Especially the equilibrium factor and the unattached fraction are influenced by the working conditions. For instance in a cabinet-maker’s shop the radon concentration is strongly influenced by the ventilation system. The factor F is influenced by dust-producing work processes. For a better knowledge of the radon dosimetry it is also necessary to measure continuously and separately the unattached fraction of the radon progeny. We present first results obtained with a SARAD EQF 3020 monitor which contains three alpha detector microsystems measuring radon in the air, attached radon daughters and unattached radon daughters. The three components are measured quasicontinuously with a temporal resolution of 2 hours. The measuring range is 1 to 10 MBq/m3 at a low detection limit of 0.1 Bq/m3 equivalent radon concentration. The system was tested in buildings, caves, mines, waterworks and other places. By using silicon microsystems with alpha detector, ADC, memory and logics—which are integrated on few chips—the costs for the production of equipment are far lower than if produced by means of assembled individual components.

Item Type: Article
Additional Information: Paper presented at the “Fourth International Conference on Rare Gas Geochemistry”, Rome, October 8-10, 1997.
Uncontrolled Keywords: Phenomena related to earthquake prediction; radiation detectors; conference proceedings
Subjects: 500 Scienze naturali e Matematica > 550 Scienze della Terra > 551 Geologia, Idrologia, Meteorologia > 551.9 Geochimica
Depositing User: Marina Spanti
Date Deposited: 11 Oct 2019 12:57
Last Modified: 11 Oct 2019 12:57

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