An improved dosimetric model of the head and brain /
and head models developed in the past were crude
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1995.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | and head models developed in the past were crude brain, and more specifically the organs of the head (brain, chosen source regions. These calculations were made for deposited in the thyroid, the skull or the spinal skeleton. developed by Posion et al. in 1984. Some corrections and development of a new spinal region and a new cranium region During the last decade, various brain imaging methods using eyes thyroid, skull, skin) was needed. However, the brain for photon and electron sources located in one of thirteen for several radionuclides used in brain imaging, and also fraction of energy and specific absorbed fraction of energy improvements were added to this head model such as the in order to incorporate the cerebrospinal fluid. This model model has been developed which includes eight subregions. of new techniques, a small-scale dosimetry study of the radiations in the energy range 10 keV to 4 MeV. All twenty- radionuclides have become available. Due to the introduction representations of the human. In this research, a new brain the beta emission spectrum of the radionuclides. The S-values were calculated using discrete energy points on This head model was included in a revised head model three regions included in the revised head and brain model was used with a Monte Carlo code, EGS4, to calculate absorbed were taken as target regions. S-values were also calculated |
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| Item Description: | "Major subject: Nuclear Engineering". Vita. |
| Physical Description: | xiv, 305 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |