In-situ gamma-ray measurements in the Chernobyl plume
Description
Airborne gamma-ray measurements were made aboard the Pacific Northwest Laboratory (PNL) DC-3 and the National Oceanic and Atmospheric Administration (NOAA) King Air research aircraft before and during the first passage of the Chernobyl radioactive cloud over the west coast of the North American continent. Measurements were made from Anchorage, Alaska south to Reno, Nevada. Calculated trajectories were used to estimate the location of the Chernobyl plume. The in-situ gamma-ray analysis systems first detected the cloud on May 8, 1986. Subsequent analysis of concurrently collected air filters indicate that the leading edge of the plume was just reaching the west coast of the United States on May 6, 1986. The ratios of the observed volatile radionuclides (131I and 134Cs) relative to 137Cs agreed with the reported discharge ratio
Availability note (English)
Available from NTIS, PC A03/MF A01; 1 as DE87011139.
Files
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Additional details
Publishing Information
- Imprint Pagination
- 28 p.
- Report number
- PNL-SA--14250
Conference
- Title
- International conference on methods and applications of radioanalytical chemistry.
- Dates
- 5-10 Apr 1987.
- Place
- Kona, HI (USA).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19017292
- Subject category
- S54: ENVIRONMENTAL SCIENCES; S61: RADIATION PROTECTION AND DOSIMETRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- AERIAL MONITORING; ALASKA; CESIUM 134; CESIUM 137; CHERNOBYLSK-1 REACTOR; EARTH ATMOSPHERE; FALLOUT; IODINE 131; NEVADA; NORTH AMERICA; RADIATION MONITORING; RADIOACTIVITY; RADIOECOLOGICAL CONCENTRATION; RADIONUCLIDE MIGRATION; REACTOR ACCIDENTS; TRAJECTORIES
- Descriptors DEC
- ACCIDENTS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CESIUM ISOTOPES; DAYS LIVING RADIOISOTOPES; DEVELOPED COUNTRIES; ECOLOGICAL CONCENTRATION; ELECTRON CAPTURE RADIOISOTOPES; ENRICHED URANIUM REACTORS; ENVIRONMENTAL TRANSPORT; GRAPHITE MODERATED REACTORS; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTO; IODINE ISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LWGR TYPE REACTORS; MASS TRANSFER; MONITORING; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; POWER REACTORS; RADIOISOTOPES; REACTORS; THERMAL REACTORS; USA; WATER COOLED REACTORS; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- Portions of this document are illegible in microfiche products.
- Secondary number(s)
- CONF-870430--12.