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The development of a remotely piloted vehicle (RPV) with real-time position measurement (RtPM) for hazardous waste site characterization /Lytle, Alan Marshall, January 1994 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1994. / Vita. Abstract. Includes bibliographical references (leaves 85-92). Also available via the Internet.
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Positional control strategies for a modular, long-reach, truss-type manipulator /Salerno, Robert James, January 1993 (has links)
Thesis (Ph. D.)--Virginia Polytechnic Institute and State University, 1993. / Vita. Abstract. Includes bibliographical references (leaves 159-165). Also available via the Internet.
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Cesium-137 and other gamma radioactivity in the Florida environmen a study of selected media /Roessler, Charles Ervin, January 1967 (has links)
Thesis--University of Florida. / Manuscript copy. Vita. Includes bibliographical references (leaves 154-167).
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Derivation of Operational Intervention Levels for the early phase of radioactive material at Koeberg Nuclear Power StationTrollope, Ian Douglas 29 January 2015 (has links)
A research report submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, in partial fulfilment of the requirements for the degree of Master of Science, Joannesburg, 2014. / An investigation was performed to look at a method to develop easy to use field
survey measurements to assist decision makers in the process of deriving public
protective actions. This method could be used at a nuclear power plant if certain
accident conditions are known. International values for operational intervention
levels (OIL’s) do exist and are recommended to be employed if station specific
data has not been derived. No values exist specific to Koeberg Nuclear Power
Station and as a result, this became an ideal opportunity to derive station specific
values.
It was firstly necessary to decide on a specific accident type and hence an
applicable accident release fraction. A suitable accident software dispersion code
was applied to calculate the organ doses for the selected accident type. It was also
decided to use two different wind dispersion criteria to further refine the results.
Due to the complexities of dose distribution within the body it was also necessary
to look at the gamma dose in isolation as this would be the measurement radiation
type utilised as a limit in the field either using installed radiation monitors or by
physical measurement performed by station Radiation Protection staff.
Comparisons were done with thyroid and lung dose versus gamma dose to arrive
at ratios for this specific accident type. This would then be indicative of the total
dose to each organ as a result of a single field measurement.
Conclusions were drawn on the results obtained and recommendations were made
for when this type of data may be suitable for use in the unlikely event of a
nuclear accident.
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A procedure for the estimation of total radioactivity in waterMarsh, Kenneth Vergil 01 January 1956 (has links)
One of the essential duties of the State of California Department of Civil Defense in times of nuclear weapon attack will be radiological monitoring. The workers in this field will operate from a mobile laboratory truck, equipped with radiation counters and meters, but containing only the simplest of chemical equipment. One of their main problems will be the determination of the total amount of radioactive material, especially fallout of fission products, in a water sample. As yet no method of analysis both simple and rapid enough for application to mobile operation has been developed.
It was the purpose of this research to develop and refine a simple, rapid, quantitative procedure for the detection and estimation of the total amount of radioactive material contained in a water sample, using only readily available and preferably inexpensive apparatus. However, no attempt has been made to either qualitatively or quantitatively determine any of the possible individual constituents.
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Principal component analysis of low resolution energy spectra to identify gamma sources in moving vehicle trafficKeillor, Martin E. 12 September 2000 (has links)
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 work examined aspects of the source terms of interest and applicable gamma
detection technologies for passive detection of emitted gamma radiation. The severe
restriction placed on the length of count due to motion of the source is presented.
Legitimate gamma sources expected in traffic are discussed. The requirement to
accurately classify and discriminate against these "nuisance" sources and cost restraints
dictate the choice of NaI(Tl) detectors for this application. The development of a
capability to automatically analyze short duration, low signal-to-noise NaI(Tl) spectra
collected from vehicles passing a large, stationary detector is reported. The analysis
must reliably discriminate between sources commonly transported in motor vehicles
and alert on the presence of sources of interest. A library of NaI(Tl) spectra for 33
gamma emitting sources was generated with MCNP4B Monte Carlo modeling. These
simulated spectra were used as parent distributions, from which multiple realizations of
short duration spectra were sampled. Principal component analysis (PCA) of this data
set yielded eigenvectors that enable the conversion of unknown spectra into principal
component space (PCS). An algorithm using least squares fitting of the positions of
library sources in PCS as basis functions, capable of identifying library nuclides in
unidentified spectra, is reported. Analysis results for experimental spectra are compared
against those achieved using simulated spectra. A valuable characteristic of this method
is its ability to identify sources despite unknown shielding geometries. The successful
identification of radionuclides and false identification rates found were excellent for the
signal levels involved. For many of the sources, identification performance against
experimental spectra was somewhat poorer than found using simulated spectra. The
results demonstrate that the PCA-based algorithm is capable of high success rates in
identifying sources in short duration, low signal-to-noise NaI(Tl) spectra. / Graduation date: 2001
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Coupled multi-group neutron photon transport for the simulation of high-resolution gamma-ray spectroscopy applicationsBurns, Kimberly Ann. January 2009 (has links)
Thesis (Ph.D)--Mechanical Engineering, Georgia Institute of Technology, 2010. / Committee Chair: Hertel, Nolan; Committee Member: Kulp, William David; Committee Member: Lee, Eva; Committee Member: Pagh, Richard; Committee Member: Petrovic, Bojan; Committee Member: Rahnema, Farzad; Committee Member: Smith, Eric; Committee Member: Wang, Chris. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Exposures to artificial sources of ionising radiation in Hong Kong陳木華, Chan, Mok-wah. January 1989 (has links)
published_or_final_version / Radioisotope / Master / Master of Philosophy
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Contribution of natural terrestrial sources to the total radiation dose to manAuxier, John Alden 12 1900 (has links)
No description available.
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Fire durations of concern for a modern legal weight truck caskMallidi, Neelima. January 2006 (has links)
Thesis (M.S.)--University of Nevada, Reno, 2006. / "May, 2006." Includes bibliographical references (leaves 33-35). Online version available on the World Wide Web.
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