Dose to the GI tract from ingested insoluble beta emitters
The distribution of dose rate within the walls of tissue-equivalent cylinders of various radii, containing material uniformly contaminated with insoluble beta emitters, was calculated using Berger's tables of scaled absorbed-dose distribution. The dose-rate calculations span the beta energy range 0.22 to 3.54 MeV and radii range 0.05 to 5.00 cm to simulate the size of the GI tract of animals used in studies of GI lethality. In addition, TL dosimeters were implanted in the GI tract to measure the dose distributions experimentally. Approximate LD/sub 50/ doses of various radionuclides were determined for both the rat and beagle dogs based upon the physics of the radiations and the clinical observations of the animals.
- Research Organization:
- Battelle Pacific Northwest Labs., Richland, WA
- OSTI ID:
- 7276808
- Journal Information:
- Radiat. Res.; (United States), Journal Name: Radiat. Res.; (United States) Vol. 73:1; ISSN RAREA
- Country of Publication:
- United States
- Language:
- English
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560172 -- Radiation Effects-- Nuclide Kinetics & Toxicology-- Animals-- (-1987)
61 RADIATION PROTECTION AND DOSIMETRY
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
655003 -- Medical Physics-- Dosimetry
ALKALINE EARTH ISOTOPES
ALPHA DECAY RADIOISOTOPES
ANIMALS
BEAGLES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BISMUTH 210
BISMUTH ISOTOPES
DAYS LIVING RADIOISOTOPES
DEPTH DOSE DISTRIBUTIONS
DIGESTIVE SYSTEM
DOGS
DOSE RATES
DOSEMETERS
DOSES
EVEN-EVEN NUCLEI
GASTROINTESTINAL TRACT
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INGESTION
INTAKE
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEAD 212
LEAD ISOTOPES
LETHAL DOSES
LETHAL RADIATION DOSE
LIGHT NUCLEI
LUMINESCENT DOSEMETERS
MAMMALS
MEASURING INSTRUMENTS
MINUTES LIVING RADIOISOTOPES
MOCKUP
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PHANTOMS
PHOSPHORUS 32
PHOSPHORUS ISOTOPES
PROMETHIUM 147
PROMETHIUM ISOTOPES
RADIATION DOSE DISTRIBUTIONS
RADIATION DOSES
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
RATS
RHODIUM 106
RHODIUM ISOTOPES
RODENTS
RUTHENIUM 106
RUTHENIUM 108
RUTHENIUM ISOTOPES
SECONDS LIVING RADIOISOTOPES
SPATIAL DOSE DISTRIBUTIONS
STRONTIUM 90
STRONTIUM ISOTOPES
STRUCTURAL MODELS
THALLIUM 204
THALLIUM ISOTOPES
THERMOLUMINESCENT DOSEMETERS
TISSUE-EQUIVALENT MATERIALS
VERTEBRATES
YEARS LIVING RADIOISOTOPES
YTTRIUM 90
YTTRIUM ISOTOPES