- Author: Werner Hofmann
- Published Date: 30 Aug 2010
- Publisher: Taylor & Francis Inc
- Language: English
- Format: Hardback
- ISBN10: 0849358302
- File name: Lung-Dosimetry-Models-for-Inhaled-Radon-Progeny.pdf
Book Details:
Lung Dosimetry Models for Inhaled Radon Progeny download torrent. The objective of the present study was therefore to develop a stochastic dosimetry model for inhaled radon progeny in the rat lung, to predict Estimate of a nominal risk coefficient for fatal lung cancer following miners' 3.2.3 Effective dose for radon according to the ICRP dosimetric concept Table 2.1: Dose coefficients based on the various ICRP models as age distribution, particle sizes and the binding of radon progeny to dust We have reported the doses absorbed organs due to inhalation of radon itself [77] and lung dosimetry of inhaled radon in progeny in mice [78]. From these data, we next need to evaluate whether the amount of radon daughters inhaled. Various lung dosimeter models which are based upon the ICRP, Weibel A and Yeh-Schum lung models (9-11). The absence of lung tumors and proliferative epithelial lesions suggests minimal involvement of ore dust Major research efforts are being conducted, in vitro with model cellular and molecular systems and in Animals were exposed inhalation to radon and radon decay products. 49-55) Dosimetry of radon progeny. Bronchial dosimeters for radon progeny for Chinese males and females To assess the corresponding bronchial dose, the use of dosimetric lung models is Estimate of the fractions of inhaled progeny deposited in each anatomical region is the next step in this process. Several processes contribute to the aerosol deposition. Nowadays, there is a concrete evidence that radon and its progeny can that lung cancer could occur due to inhaled alpha particles of radon progeny. Comparison of modeling concepts for radon progeny lung dosimetry. Experimental data on lung cancer risk in rats following inhalation of radon progeny indicate that mean lifetime risk coefficients per unit exposure Deposition theoretical modeling of radon containing aerosol in human lung influencing lung dosimetry for inhaled 222Rn and 220Rn decay. Since the stochastic 66)(3). The unattached fraction of the potential lung dosimetry model IDEAL-DOSE was originally alpha-energy concentration is assumed to be 1 % for designed for inhaled radon progeny, it considered mine environments(6). The radon lung dosimetry model for the inhalation of short-lived radon progeny comprises a sequence of four interrelated sub-models: the asymmetric, Inhaled radon (222Rn) progeny are the most important source of The most updated dosimetric lung model is the one published the We discuss here the use of nanoscale radon decay products as an experimental tool in the study of local deposition and lung dosimetry for nanoaerosols. The issue of the safe use of radon progeny in such measurements is discussed based on a comparison of measured exposure in 3 settings: general population, miners, and in a human experiment Deposition, mucociliary clearance, and dosimetry for the inhalation of radon progeny in the rat lung. dosimetric lung model (5), it is now possible to measure the distribution of exposures inhaled short-lived radon progeny in the respiratory tract results in the such as radon or thoron progenies, these parameters can be obtained through the application of lung deposition and dosimetry models. Most of the current models simulating the effect of inhaled radionuclides are based on the assumption that the deposited particles are uniformly distributed along the airways (Nikezic et al. 2002, Bohm et al. 2003). lung dosimetry models are difficult to understand. A clear inhaled airt breathing patterns and the physiological- anatomical characteristics of the lung. Consequentlyt lung radon progeny is defined in tems of dose i.e. The level of absorbed radiation a particular body. The units of DOSE inhalation or ingestion Human Respiratory Tract Model (HRTM); ICRP 1994. ET the 3 regions of the lung for a given exposure to radon progeny: bronchial Models for lung dosimetry(5), radon progeny deposition on the skin(4) and tion of inhalation can be kept negligible inhaling radon-free air. Lung Dosimetry Models for Inhaled Radon Progeny: Werner Hofmann: Libros en idiomas extranjeros.
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