STRONTIUM-90 IN HUMAN TEETH. PART II

Journal Article · Sun Sep 01 04:00:00 EDT 1963 · Strahlentherapie (West Germany)

OSTI ID:4634762

Keil, R; Randow, F; Schulze, H -A

The determination of Sr/sup 90/ in human teeth of different ages is reported. A decrease of the Sr/sup 90/ contamination beginning with the 2nd decade of life was observed in skeletal bone as well as in teeth. The contamination rates of the milk teeth were 0.44 for the year 1961 and 0.46 for the first half of 1962 (mostly 7- to 9-yr-old children). The contamination rates of the permanent teeth of children up to 18 yr were 0.49 and 0.36, respectively; it was 0.13 and 0.14 for the teeth of adults between 18 and 30 yr and 0.10 and 0.05 pC Sr/sup 90//g Ca for adults over 30 yr. A standard tooth with 1 g ash content and 0.18 pC Sr/sup 90/ (0.5 pC/g Ca) contains about 8 million Sr/sup 90/ atoms; its activity is about 25 nuclear transformations/hr or about 200,000/yr. These are numbers which are doubled in case of equilibrium with Y/sup 90/ (about 2000 atoms). (auth)

• Research Organization: Universitat, Rostock, Ger.
• NSA Number: NSA-17-038726
• OSTI ID: 4634762
• Journal Information: Strahlentherapie (West Germany), Journal Name: Strahlentherapie (West Germany) Vol. Vol: 122; ISSN STRAA
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

AGE
BIOLOGY AND MEDICINE
BONES
CONTAMINATION
ENVIRONMENT
FALLOUT
GERMANY
MAN
QUANTITATIVE ANALYSIS
QUANTITY RATIO
RADIATION DOSES
STRONTIUM 90
TEETH
TISSUES
YTTRIUM 90