Abstract:
:A transformation method was investigated for applying the MIRD absorbed fraction to internal dose calculations for an individual. The transformation method consists of two parts, transformation of the target organ mass, and of the distance between source and target organs. The variation of the specific absorbed fraction with distance in the human body was approximated with the traditional exponential form. To examine the transformation method, experiments were carried out for cobalt-60 gamma rays, using LiF-TLD, with the thyroid and ovaries as source organs. The transformed values of the MIRD absorbed fractions agreed well with the experimental values. Some results obtained from the MIRD values by these transformation methods were also compared with those for younger age groups calculated by Snyder.
journal_name
Phys Med Bioljournal_title
Physics in medicine and biologyauthors
Yamaguchi H,Kato Y,Shiragai Adoi
10.1088/0031-9155/20/4/006subject
Has Abstractpub_date
1975-07-01 00:00:00pages
593-601issue
4eissn
0031-9155issn
1361-6560journal_volume
20pub_type
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