Document Details


Title:
DIETARY RADIOACTIVITY INTAKE FROM BIOASSAY DATA: A MODEL APPLIED TO CESIUM-137 INTAKE BY BIKINI ISLAND RESIDENTS ( HEALTH PHYSICS, VOL. 39, AUGUST 1980 )
Author(s):
LESSARD, E T [BROOKHAVEN NATIONAL LABORATORY]; MILTENBERGER, R P [BROOKHAVEN NATIONAL LABORATORY]; GREENHOUSE, N A [BROOKHAVEN NATIONAL LABORATORY]
Subject Terms:
MATHEMATICAL MODELS; CESIUM 137; INGESTION; INTAKE; URINE; BIOASSAY; WHOLE-BODY COUNTING; BODY BURDEN; DATA; ACTIVITY LEVELS; DIET; STATISTICS; SAMPLING; DIAGRAMS; CALCULATION METHODS; EXCRETION; POTASSIUM 40; BIBLIOGRAPHIES
Document Location:
Location - NNSA/NSO Nuclear Testing Archive Address - P.O. Box 98521 City - Las Vegas State - NV Zip - 89193-8521 Phone - (702)794-5106 Fax - (702)862-4240 Email - CIC@NV.DOE.GOV
Document Type:
JOURNAL ARTICLE
Publication Date:
1980 Aug 31
Declassification Status:
Never classified
Document Pages:
0007
Accession Number:
NV0062422
Originating Research Org.:
HEALTH PHYSICS - JOURNAL
OpenNet Entry Date:
1994 Aug 26
Description/Abstract:
SEVERAL PUBLICATIONS OF THE ICRP AND NCRP (ICRP59; ICRP68; ICRP71; NCR P77) DESCRIBE MATHEMATICAL MODELS RELATING TOTAL RADIONUCLIDE BODY BUR DEN, URINARY ACTIVITY EXCRETION RATE AND UPTAKE INTERVAL. THIS PAPER P RESENTS AN EQUATION WITH WHICH THE CONSTANT DAILY ACTIVITY INGESTION R ATE MAY BE CALCULATED FROM SEQUENTIALLY OBTAINED WHOLE BODY COUNTING A ND URINE BIOASSAY DATA. THE MODEL WAS DEVELOPED TO RELATE WHOLE BODY C OUNTING RESULTS TO URINARY ACTIVITY EXCRETION DATA FOR 137-CESIUM IN T HE MARSHALLESE POPULATION AT BIKINI ISLAND FOR WHOM ACCURATE DIETARY I NTAKE AND RESIDENCE INTERVAL INFORMATION WERE NOT AVAILABLE. THE TECHN IQUE IS APPLICABLE TO RADIOACTIVE MATERIAL WHOSE BIOLOGICAL AND PHYSIC AL REMOVAL MECHANISMS ARE LINEAR FIRST ORDER PROCESSES DESCRIBED BY AP PROPIATE RATE CONSTANTS WHICH GIVE THE INSTANTANEOUS FRACTION OF ATOMS TRANSFERRED FROM COMPARTMENTS IN THE BODY TO URINE PER UNIT TIME, AND THE INSTANTANEOUS FRACTION OF ATOMS DECAYING PER UNIT TIME.


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