Estimates of the absorbed fraction of energy for various electron source and target regions in the upper respiratory tract /
absorbed fractions for various electron source and target
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1994.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | absorbed fractions for various electron source and target and (2) the lining of the airways in the case of particulates are needed for the evaluation of the risks associated with bifurcation zone, and the lining of the bifurcation zone. component of radiation absorbed dose to the airway tissues computed for monoenergetic sources covering the energy range considered include the tracheal airway, the lining of the deposited via impaction, sedimentation, or interception energy absorbed in the target region to the energy emitted in Estimates of radiation absorbed dose for internal emitters fraction of energy which is defined as the ratio of the in the bifurcation zone where these airways interconnect. In inhalation, target tissues of interest will include the of 15 keV to 4 MeV. Comparisons with results obtained by other calculational methods are presented. parameter in internal dosimetry calculations is the absorbed paths of photons emitted from these airways, the primary processes. In considering the relatively large mean free regions in the upper respiratory tract. The source regions target regions considered. The absorbed fractions were the case of beta-emitting radionuclides, the source regions the source region. In this research, electron radiation Tissue at various depths within the tracheal wall, and within tracheal wall, the airways of the main bronchi and the tracheal wall, the walls Of the main bronchi, and the tissue transport calculations were performed to estimate the various intakes of radionuclides. When the intake route is volume in the case of gases and nondepositing particulates, walls of the main bronchi and bifurcation zone were the will be that due to electron and beta particles. One key within the respiratory tract will include (1) the airway |
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| Item Description: | "Major subject: Health Physics". Vita. |
| Physical Description: | xi, 101 leaves : illustrations ; 28 cm. Also available online. |
| Bibliography: | Includes bibliographical references. |