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Behavior of estimates of the mean life of a radioactive source

Creator:: Butler, Stephen Walter
Abstract:: This thesis presents the results of sampling experiments investigating the properties of estimates of the mean life of a radioactive source in the presence of a constant unknown background. An iterative estimation procedure is used where the estimates are maximum liklihood estimates with asymptotic variances. The estimation procedure was programmed...
Resource Type:: Masters Thesis
Full Text:: Title Behavior of Estimates of the Mean l-,ife of a Radioactive Source Abstract approved (Major

The formation of radioactive lysine and histidine from CH₃C¹⁴OOH and CH₃C¹⁴O COOH in yeast

Creator:: Davis, James Wendell
Resource Type:: Masters Thesis
Full Text:: synthesis of histidine. The thesis here presented represents the isolation of radioactive lysine and

The quantitative recovery of plutonium from laboratory residues

Creator:: Ferguson, William Sidney
Resource Type:: Masters Thesis
Full Text:: !rom these analyses cannot be considered because plutonium is a very valuable substance and in

Uptake and retention of technetuim [i.e. technetium] by two freshwater species, the crayfish Pacifastacus leniusculus and the snail Juga silicula

Creator:: McKenzie-Carter, Michael A.
Abstract:: The patterns of uptake, retention, and tissue distribution of ⁹⁵mTc in two freshwater species, the crayfish Pacifastacus leniusculus and the snail Juga silicula have been investigated. The animals were chronically exposed in water to which sodium pertechnetate had been added. Final whole-body concentration ratios (CR) obtained were 1.6 and 41...
Resource Type:: Masters Thesis
Full Text:: , respectively. Following the uptake study the animals were placed in fresh non-radioactive water for a

Accident analysis of traffic accidents involving radioactive materials (RAM)

Creator:: Humphries, Larry LaRon
Abstract:: The extensive and expanding use of radioactive materials (RAM) in the production of power, industry, the healing arts, and various branches of research has inevitably resulted in a sizable increase of hazardous material transportation in the state of Oregon. The location of the Hanford facility just north of the Oregon...
Resource Type:: Masters Thesis
Full Text:: radioactive materials (RAM) AN ABSTRACT OF THE THESIS OF Larry LaRon Humphries for the degree of Master of

Performance of hybrid methods for representative nonproliferationproblems

Creator:: Bevill, Aaron M.
Abstract:: Adjoint-derived weight windowing is a hybrid deterministic/Monte Carlo method to simulate radiation transport. In adjoint-derived weight windowing, a deterministic adjoint solution is used to create weight windows for a Monte Carlo simulation. The intent of this work is to identify factors that reduce the Figure of Merit (FOM) of Monte...
Resource Type:: Masters Thesis
Full Text:: controlling and tracking the spread of certain radioactive materials. Radi- ation detectors — systems that

Seasonal concentration, turnover and mode of accumulation of ³²P by the juvenile starry flounder Platichthys stellatus (Pallas) in the Columbia River Estuary

Creator:: Bolen, John Joseph
Abstract:: The seasonal concentration, turnover and mode of accumulation of ³²P by the juvenile starry flounder in Alder Slough, a small eco-system in the Columbia River Estuary, was examined during 1969 and 1970. Levels of ³²P and concentrations of total P were measured to permit computation of specific activities (nCi³²P/g total...
Resource Type:: Dissertation
Full Text:: most radioactive fish being approximately 500 pCi/g. The seasonality of 32P in flounder can be

Evaluation of the FDA derived intervention levels and exposure rate of 0.4 µR/hrusing NARAC Web Atmosphere and Diffusion Modeling System

Creator:: Hay, Tristan Ryan
Abstract:: The Oregon Department of Energy has set up recommendations for agricultural crop and non-crop embargo zones following an accidental or purposeful radioactive release. Of special interest are the FDA’s Derived Intervention Levels (DIL) and the state’s exposure limit of 0.4µR/hr. At the Oregon State University Emergency Response Research and Support...
Resource Type:: Masters Thesis
Full Text:: radioactive release. Of special interest are the FDA’s Derived Intervention Levels (DIL) and the state’s

Principal component analysis of low resolution energy spectra to identify gamma sources in moving vehicle traffic

Creator:: Keillor, Martin E.
Abstract:: A system intended to detect, classify, and track radioactive sources in moving vehicle traffic is under development at Lawrence Livermore National Laboratory (LLNL). This system will fuse information from a network of sensor suites to provide real time tracking of the location of vehicles emitting gamma and/or neutron radiation. This...
Resource Type:: Dissertation
Full Text:: radioactive sources in moving vehicle traffic is under development at Lawrence Livermore National Laboratory

Capabilities of Detecting Medical Isotope Facilities through Radioxenon Sampling

Creator:: MacDougall, Matthew R.
Abstract:: Medical Isotopes are a necessity in modern medicine for cancer treatments and medical imaging. In order to ensure that the needs and demands are met for the medical procedures, facilities are put in place to produce these isotopes. There are over 25 different isotopes of interest being produced by more...
Resource Type:: Masters Thesis
Full Text:: radioactive gases are released that would otherwise not leave the nuclear fuel component. One of these

ScholarsArchive@OSU

Behavior of estimates of the mean life of a radioactive source

The formation of radioactive lysine and histidine from CH₃C¹⁴OOH and CH₃C¹⁴O COOH in yeast

The quantitative recovery of plutonium from laboratory residues

Uptake and retention of technetuim [i.e. technetium] by two freshwater species, the crayfish Pacifastacus leniusculus and the snail Juga silicula

Accident analysis of traffic accidents involving radioactive materials (RAM)

Performance of hybrid methods for representative nonproliferationproblems

Seasonal concentration, turnover and mode of accumulation of ³²P by the juvenile starry flounder Platichthys stellatus (Pallas) in the Columbia River Estuary

Evaluation of the FDA derived intervention levels and exposure rate of 0.4 µR/hrusing NARAC Web Atmosphere and Diffusion Modeling System

Principal component analysis of low resolution energy spectra to identify gamma sources in moving vehicle traffic

Capabilities of Detecting Medical Isotope Facilities through Radioxenon Sampling

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