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Innovative characteristics of the new dosimetric model for the human respiratory tract studied by the ICRP appointed Task Group of Committee 2

In 1984, the ICRP appointed a Task Group of Committee 2 to review and revise, as necessary, the current lung dosimetric model. On the basis of the knowledge acquired during the past 20 years, the Task Group's approach has been to review, in depth, the morphology and physiology of the human resp...

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Detalles Bibliográficos
Autores principales: Melandri, C, Battisti, P, Tarroni, G
Lenguaje:ita
Publicado: 1991
Materias:
Acceso en línea:http://cds.cern.ch/record/747869
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author Melandri, C
Battisti, P
Tarroni, G
author_facet Melandri, C
Battisti, P
Tarroni, G
author_sort Melandri, C
collection CERN
description In 1984, the ICRP appointed a Task Group of Committee 2 to review and revise, as necessary, the current lung dosimetric model. On the basis of the knowledge acquired during the past 20 years, the Task Group's approach has been to review, in depth, the morphology and physiology of the human respiratory tract, inspirability of aerosols and regional deposition of inhaled particles as functions of aerosol size and breathing parameters, clearance of deposited materials, nature and specific sites of damage to the respiratory system caused by inhaled radioactive substances. In the proposed model, clearance from the three regions of the respiratory tract (extrathoracic ET, fast-clearing thoracic T sub f and slow-clearing thoracic T sub s , comprising lymph nodes) is described in terms of competition between the mechanical processes moving particles, which do not depend on the substances, and those of absorption into the blood, determined solely by the material. A Task Group report will also include models for calculating radiation doses to tissues of the respiratory system following inhalation of alpha, beta and gamma emitting particulate and gaseous radionuclides.
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institution Organización Europea para la Investigación Nuclear
language ita
publishDate 1991
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spelling cern-7478692019-09-30T06:29:59Zhttp://cds.cern.ch/record/747869itaMelandri, CBattisti, PTarroni, GInnovative characteristics of the new dosimetric model for the human respiratory tract studied by the ICRP appointed Task Group of Committee 2Health Physics and Radiation EffectsIn 1984, the ICRP appointed a Task Group of Committee 2 to review and revise, as necessary, the current lung dosimetric model. On the basis of the knowledge acquired during the past 20 years, the Task Group's approach has been to review, in depth, the morphology and physiology of the human respiratory tract, inspirability of aerosols and regional deposition of inhaled particles as functions of aerosol size and breathing parameters, clearance of deposited materials, nature and specific sites of damage to the respiratory system caused by inhaled radioactive substances. In the proposed model, clearance from the three regions of the respiratory tract (extrathoracic ET, fast-clearing thoracic T sub f and slow-clearing thoracic T sub s , comprising lymph nodes) is described in terms of competition between the mechanical processes moving particles, which do not depend on the substances, and those of absorption into the blood, determined solely by the material. A Task Group report will also include models for calculating radiation doses to tissues of the respiratory system following inhalation of alpha, beta and gamma emitting particulate and gaseous radionuclides.ENEA-RT-AMB-91-02oai:cds.cern.ch:7478691991
spellingShingle Health Physics and Radiation Effects
Melandri, C
Battisti, P
Tarroni, G
Innovative characteristics of the new dosimetric model for the human respiratory tract studied by the ICRP appointed Task Group of Committee 2
title Innovative characteristics of the new dosimetric model for the human respiratory tract studied by the ICRP appointed Task Group of Committee 2
title_full Innovative characteristics of the new dosimetric model for the human respiratory tract studied by the ICRP appointed Task Group of Committee 2
title_fullStr Innovative characteristics of the new dosimetric model for the human respiratory tract studied by the ICRP appointed Task Group of Committee 2
title_full_unstemmed Innovative characteristics of the new dosimetric model for the human respiratory tract studied by the ICRP appointed Task Group of Committee 2
title_short Innovative characteristics of the new dosimetric model for the human respiratory tract studied by the ICRP appointed Task Group of Committee 2
title_sort innovative characteristics of the new dosimetric model for the human respiratory tract studied by the icrp appointed task group of committee 2
topic Health Physics and Radiation Effects
url http://cds.cern.ch/record/747869
work_keys_str_mv AT melandric innovativecharacteristicsofthenewdosimetricmodelforthehumanrespiratorytractstudiedbytheicrpappointedtaskgroupofcommittee2
AT battistip innovativecharacteristicsofthenewdosimetricmodelforthehumanrespiratorytractstudiedbytheicrpappointedtaskgroupofcommittee2
AT tarronig innovativecharacteristicsofthenewdosimetricmodelforthehumanrespiratorytractstudiedbytheicrpappointedtaskgroupofcommittee2