Committee's report on ruthenium fall-out incident
Investigations of the fall-out incident of November 11 and 12, 1959, by responsible parties (Health Physics Division and Operations Division personnel) established beyond reasonable doubt that the incident had its origin in the expulsion of particles, heavily contaminated with ruthenium, which had been detached from the walls of the electric fan housing and ducts in the off-gas system associated with the brick stack. All available evidence indicates that the particles were loosened during maintenance work on the exhaust damper and the bearings of the electric fan and were carried up the stack in two bursts as particulate fall-out when this fan was put back into service. Radiographic and chemical analysis showed the activity to be almost entirely ruthenium (Ru/sup 106/) and its daughter rhodium (Rh/sup 106/) with very little, if any, strontium being present. This report summarizes the findings and sets forth the conclusions and recommendations of the Committee asked to investigate the incident.
- Publication Date:
- OSTI Identifier:
- Report Number(s):
- DOE Contract Number:
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: Portions are illegible in microfiche products. Formally issued as an internal report, January 25, 1960
- Research Org:
- Oak Ridge National Lab., TN (USA)
- Country of Publication:
- United States
- 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; 54 ENVIRONMENTAL SCIENCES; ORNL; RADIATION ACCIDENTS; DOSE RATES; FALLOUT; PARTICULATES; RHODIUM 106; RUTHENIUM 106; STACK DISPOSAL; ACCIDENTS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; EVEN-EVEN NUCLEI; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; ISOTOPES; MANAGEMENT; NATIONAL ORGANIZATIONS; NUCLEI; ODD-ODD NUCLEI; PARTICLES; RADIOISOTOPES; RHODIUM ISOTOPES; RUTHENIUM ISOTOPES; SECONDS LIVING RADIOISOTOPES; US AEC; US DOE; US ERDA; US ORGANIZATIONS; WASTE DISPOSAL; WASTE MANAGEMENT; YEARS LIVING RADIOISOTOPES; 560151* - Radiation Effects on Animals- Man; 510302 - Environment, Terrestrial- Radioactive Materials Monitoring & Transport- Terrestrial Ecosystems & Food Chains- (-1987)
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