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Author: Publisher: ISBN: Category : Languages : en Pages : 24
Book Description
Radiological studies of the fate of nuclear test related debris in the Marshall Islands conducted by members of the Lawrence Livermore National Laboratory generate large number of environmental samples. For more than 20 years, the Low-Level Gamma Spectroscopy Facility has been used to perform the analysis of gamma emitting radionuclides. A brief description of the facility, calibration, counting and analysis procedures is given.
Author: Publisher: ISBN: Category : Languages : en Pages : 24
Book Description
Radiological studies of the fate of nuclear test related debris in the Marshall Islands conducted by members of the Lawrence Livermore National Laboratory generate large number of environmental samples. For more than 20 years, the Low-Level Gamma Spectroscopy Facility has been used to perform the analysis of gamma emitting radionuclides. A brief description of the facility, calibration, counting and analysis procedures is given.
Author: Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Results are reported from the radiological analysis of environmental samples collected in the Marshall Islands during 1974 through 1976. Most of the samples were collected on or near the Bikini Atoll and included plants, soil, fish, catchment water, and sediments, with emphasis on local marine and terrestrial food items. Data are presented from .gamma. spectral analysis and the content of 9°Sr and transuranic elements in the samples.
Author: National Research Council Publisher: National Academies Press ISBN: 0309050499 Category : Science Languages : en Pages : 131
Book Description
As a result of contamination by radionuclides released during nuclear weapons testing by the United States during the 1940s and 1950s, the residents of Rongelap Atoll were evacuated from the Marshall Islands. This book provides an assessment of issues surrounding their resettlement and an evaluation of radiological conditions on certain Marshall Islands, particularly Rongelap Atoll.
Author: Publisher: ISBN: Category : Languages : en Pages : 9
Book Description
The Marshall Islands Environmental Characterization and Dose Assessment Program has recently implemented waste minimization measures to reduce low level radioactive (LLW) and low level mixed (LLWMIXED) waste streams at the Lawrence Livermore National Laboratory (LLNL). Several thousand environmental samples are collected annually from former US nuclear test sites in the Marshall Islands, and returned to LLNL for processing and radiometric analysis. In the past, we analyzed coconut milk directly by gamma-spectrometry after adding formaldehyde (as preservative) and sealing the fluid in metal cans. This procedure was not only tedious and time consuming but generated storage and waste disposal problems. We have now reduced the number of coconut milk samples required for analysis from 1500 per year to approximately 250, and developed a new analytical procedure which essentially eliminates the associated mixed radioactive waste stream. Coconut milk samples are mixed with a few grams of ammonium-molydophosphate (AMP) which quantitatively scavenges the target radionuclide cesium 137 in an ion-exchange process. The AMP is then separated from the mixture and sealed in a plastic container. The bulk sample material can be disposed of as a non- radioactive non-hazardous waste, and the relatively small amount of AMP conveniently counted by gamma-spectrometry, packaged and stored for future use.
Author: International Atomic Energy Agency Publisher: ISBN: 9789201190109 Category : Aerosols, Radioactive Languages : en Pages : 0
Book Description
Reports on the outcome of an IAEA coordinated research project in the area of measurement and characterization of radioactive particles in the environment. This publication summarizes the achievements and findings of the project participants and gives guidance for application of the techniques for evaluation of contaminated areas.
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Author: N. A. Greenhouse
Author: National Research Council
Author: Elwood A. Lepel
Author: Smithsonian Science Information Exchange
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Author: International Atomic Energy Agency