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Correlation of alluvial deposits at the Nevada Test Site

Description: Because characteristics of rock layers and problems in drilling must be studied before radioactive waste can be safely contained, an evaluation was made of methods for correlating alluvial deposits at Yucca Flat of the Nevada Test Site (NTS). Although correlation of Tertiary volcanic tuff beds at the NTS has been successfully achieved, correlation of stratigraphic zones in the overlying alluvium has posed technical difficulties. We have evaluated several methods for correlating alluvial deposit… more
Date: September 30, 1977
Creator: Grothaus, B. & Howard, N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Environmental monitoring at major U. S. Energy Research and Development Administration contractor sites: calendar year 1976. Volume 2

Description: The purpose of this compilation is to present, in a central reference document, all of the individual annual reports summarizing the results of the environmental monitoring programs conducted at each of the Energy Research and Development Administration (ERDA) sites having a potential for environmental impact or which release a significant quantity of radioactivity or nonradioactive pollutants. Data on the levels of radioactivity and nonradioactive pollutants in effluents and the environs at ea… more
Date: August 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Bibliography of reports by US Geological Survey personnel pertaining to underground nuclear testing and radioactive waste disposal at the Nevada Test Site, and radioactive waste disposal at the WIPP Site, New Mexico, January 1, 1979-December 31, 1979

Description: This bibliography presents reports released to the public between January 1, 1979, and December 31, 1979, by personnel of the US Geological Survey. Reports include information on underground nuclear testing and waste management projects at the NTS (Nevada Test Site) and radioactive waste projects at the WIPP (Waste Isolation Pilot Plant) site, New Mexico. Reports on Project Dribble, Tatum Dome, Mississippi, previously prepared as administrative reports and released to the public as 474-series r… more
Date: January 1, 1980
Creator: Glanzman, V.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Plutonium, americium, and uranium in blow-sand mounds of safety-shot sites at the Nevada Test Site and the Tonopah Test Range

Description: Blow-sand mounds or miniature sand dunes and mounds created by burrowing activities of animals were investigated by the Nevada Applied Ecology Group (NAEG) to determine the influence of mounds on plutonium, americium, and uranium distributions and inventories in areas of the Nevada Test Site and Tonopah Test Range. Those radioactive elements were added to the environment as a result of safety experiments of nuclear devices. Two studies were conducted. The first was to estimate the vertical dist… more
Date: January 1, 1977
Creator: Essington, E. H.; Gilbert, R. O.; Wireman, D. L.; Brady, D. N. & Fowler, E. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Report on geologic exploration activities

Description: This report provides an overview of the geological exploration activities being carried out as part of the National Waste Terminal Storage (NWTS) Program, which has been established by the US Department of Energy (DOE) to develop the technology and provide the facilities for the safe, environmentally acceptable isolation of civilian high-level and transuranic nuclear wastes, including spent fuel elements, for which the Federal government is reponsible. The principal programmatic emphasis is on … more
Date: January 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Estimate of earth media shear strength at the Nevada Test Site

Description: A method is presented of estimating the effective shear strength of the fractured rock that surrounds a nuclear detonation. To do this, we measure the cavity radii from previous detonations. We also use numerical computer codes to model the explosion phenomenology and develop the functional relationship between the normalized cavity displacement and the normalized shear strength of the rock. In this sense, the computer codes serve as replica models that are dimensionally analyzed to interpret t… more
Date: November 3, 1977
Creator: Terhune, R. W. & Glenn, H. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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1990 Environmental monitoring report, Tonopah Test Range, Tonopah, Nevada

Description: There is no routine radioactive emission from Sandia National Laboratories, Tonopah Test Range (SNL, TTR). However, based on the types of test activities such as air drops, gun firings, ground- launched rockets, air-launched rockets, and other explosive tests, possibilities exist that small amounts of depleted uranium (DU) (as part of weapon components) may be released to the air or to the ground because of unusual circumstances (failures) during testing. Four major monitoring programs were use… more
Date: May 1, 1991
Creator: Hwang, A.; Phelan, J.; Wolff, T.; Yeager, G.; Dionne, D.; West, G. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Updated estimates of /sup 239/ /sup 240/Pu + /sup 241/Am inventory, spatial pattern, and soil tonnage for removal at Nuclear Site-201, NTS

Description: Updated estimates of /sup 239/ /sup 240/Pu + /sup 241/Am inventory and spatial pattern in surface soil are given for Nuclear Site (NS)-201 in Area 18 of the Nevada Test Site (NTS). These new estimates are based on 712 /sup 241/Am soil concentrations including 185 data values not previously available. Estimates were obtained using essentially the same Kriging techniques and the estimated average /sup 239/ /sup 240/Pu to /sup 241/Am ratio of 7.5 used by Simpson and Gilbert (1980) to obtain previo… more
Date: April 1, 1982
Creator: Simpson, J. C. & Gilbert, R. O.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Nevada test site fallout atom ratios: /sup 240/Pu//sup 239/Pu and /sup 241/Pu//sup 239/Pu

Description: The exposure of the population in Utah to external gamma radiation from the fallout from nuclear weapons tests carried out between 1951 and 1958 at the Nevada Test Site (NTS) has been reconstructed from recent measurements of /sup 137/Cs and plutonium in soil. The fraction of /sup 137/Cs in the fallout from NTS events was calculated from the total plutonium and the /sup 240/Pu//sup 239/Pu ratios measured in the soil, using the values of 0.180 +- 0.006 and 0.032 +- 0.003 for that ratio in global… more
Date: February 1, 1984
Creator: Hicks, H.G. & Barr, D.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Estimation of Dose to Human Tissues From Ingestion of Foods Exposed to Fallout From Nuclear Weapons Tests in Nevada

Description: This paper provides a brief overview of the methodology developed to estimate the transport of radionuclides through agricultural ecosystems to persons of various ages, lifestyles, and geographic locations. The methodology, embodied in the computer code PATHWAY, was used to convert estimates of fallout deposition to time-dependent concentrations of radionuclides in food products, total intakes by people, and organ-specific doses from 21 radionuclides in fallout from 86 nuclear test events. A su… more
Date: January 1, 1991
Creator: Whicker, F.W. (Savannah River Ecology Lab., Aiken, SC (United States)) & Kirchner, T.B. (Colorado State Univ., Fort Collins, CO (United States). Natural Resources Ecology Lab.)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Permeability of stemming materials for prompt gas sampling

Description: The permeability and porosity of a suite of man-made granular aggregates and stemming materials currently in use at NTS was measured in 1-D loading as a function of stress. In all cases, the gas permeability was measured at 22 MPa after cycling up and down from 100 to 1200 MPa. Depending on stress and material, permeability decreased up to three orders of magnitude, porosity up to 63% and the sample compacted by as much as 35%. Steel ball bearings were found to retain the highest permeability o… more
Date: January 1, 1982
Creator: Beiriger, J. & Trimmer, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Technical support non-SLB(GCDF). [Shallow land burial]

Description: The Los Alamos National Laboratory is providing technical support for the Greater Confinement Demonstration Facility (GCDF) at the Nevada Test Site. This technical support consists of computer modeling of the GCDF, design and emplacement of a Shallow Test Plot at NTS, and instrument testing at Los Alamos. Results to date on the computer modeling and the Shallow Test Plot are described.
Date: January 1, 1982
Creator: DePoorter, G. L. & Burton, B. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Calculated concentrations of any radionuclide deposited on the ground by release from underground nuclear detonations, tests of nuclear rockets, and tests of nuclear ramjet engines

Description: This report presents calculated gamma radiation exposure rates and ground deposition of related radionuclides resulting from three types of event that deposited detectable radioactivity outside the Nevada Test Site complex, namely, underground nuclear detonations, tests of nuclear rocket engines and tests of nuclear ramjet engines.
Date: November 1, 1981
Creator: Hicks, H.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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1987 Oak Ridge model conference: Proceedings

Description: A conference sponsored by the United States Department of Energy (DOE), was held on waste management. Topics included waste management, site remediation, waste minimization, economic and social aspects of waste management, and waste management training. Several case studies of US DOE facilities are included. Individual projects are processed separately for the data bases. (CBS)
Date: October 1, 1987
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Statistical analysis of radioactivity in the environment

Description: The pattern of radioactivity in surface soils of Area 5 of the Nevada Test Site is analyzed statistically by means of kriging. The 1962 event code-named Smallboy effected the greatest proportion of the area sampled, but some of the area was also affected by a number of other events. The data for this study were collected on a regular grid to take advantage of the efficiency of grid sampling. (ACR)
Date: May 1, 1980
Creator: Barnes, M.G. & Giacomini, J.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Seismic hazard analysis for the NTS spent reactor fuel test site

Description: An experiment is being directed at the Nevada Test Site to test the feasibility for storage of spent fuel from nuclear reactors in geologic media. As part of this project, an analysis of the earthquake hazard was prepared. This report presents the results of this seismic hazard assessment. Two distinct components of the seismic hazard were addressed: vibratory ground motion and surface displacement. (ACR)
Date: May 2, 1980
Creator: Campbell, K.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Portable, remotely operated, computer-controlled, quadrupole mass spectrometer for field use

Description: A portable, remote-controlled mass spectrometer was required at the Nevada Test Site to analyze prompt post-event gas from the nuclear cavity in support of the underground testing program. A Balzers QMG-511 quadrupole was chosen for its ability to be interfaced to a DEC LSI-11 computer and to withstand the ground movement caused by this field environment. The inlet system valves, the pumps, the pressure and temperature transducers, and the quadrupole mass spectrometer are controlled by a read-o… more
Date: April 1, 1982
Creator: Friesen, R.D.; Newton, J.C. & Smith, C.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Radionuclide Migation Project 1984 progress report

Description: The report discusses the hydrogeologic settings and histories of studies associated with the Cheshire (U20n), Cambric (U5e), Nash (UE2ce), Bilby (U3cn), Bourbon (U7n), and Faultless (UC1) Events. Radionuclide and some chemical data are presented for water samples from cavity or chimney wells associated with the Cheshire, Cambric, and Bilby Events, and from satellite wells at the Cambric, Nash, Bibly, Bourbon, and Faultless Event sites. The report also gives the results of studies of specific sa… more
Date: April 1, 1985
Creator: Buddemeier, R.W. & Isherwood, D. (comps.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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VORP, an improved detector system for remote measurements. [Voltage Output Radiation Probe for ionization chamber readout for underground nuclear explosion diagnostics]

Description: The Voltage Output Radiation Probe (VORP) is used as the detector to monitor radiological data on underground nuclear tests at the Department of Energy (DOE) Nevada Test Site. The VORP was designed to convert the current output of a Neher-White ionization chamber to a voltage output. There are several advantages in having a voltage output device rather than a low current probe in the field. The VORP makes it easier to protect against transients induced in the field wires. It also allows the use… more
Date: January 1, 1978
Creator: Smale, R.F. & Backsen, M.H.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Identification of artificial gamma-emitting nuclides using a scintillator-based gamma-ray spectral logging system

Description: The standard spectral gamma ray logging system used at the Nevada Test Site (NTS) contains a large sodium iodide detector which provides high efficiency but low energy resolution. To enhance the capabilities of this system for identifying artificial gamma-emitting nuclides, I developed and implemented a simple procedure for extracting artificial components from low-resolution gamma-ray spectra. This procedures uses three bias spectra, developed by a consultant using numerical modeling, represen… more
Date: January 1, 1991
Creator: Conaway, J.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Addendum to the Closure Report for Corrective Action Unit 398: Area 25 Spill Sites, Nevada Test Site, Nevada, Revision 0

Description: This document constitutes an addendum to the April 2003, Closure Report for Corrective Action Unit 398: Area 25 Spill Sites as described in the document Recommendations and Justifications for Modifications for Use Restrictions Established under the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office Federal Facility Agreement and Consent Order (UR Modification document) dated February 2008. The UR Modification document was approved by NDEP on February 26, 2008… more
Date: October 1, 2008
Creator: Kidman, Lynn
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Western Red-tailed Skink Distribution in Southern Nevada: Pilot Study Results

Description: The western red-tailed skink (Eumeces gilberti rubricaudatus) is a sensitive species that is on the Nevada Natural Heritage Program’s “Animal and Plant At-Risk Tracking List.” Information about this species is lacking, especially for southern Nevada. A pilot project was initiated in 2006 on portions of the Nevada Test Site (NTS) to (1) develop techniques for determining western red-tailed skink distribution, (2) determine if skinks are still present at historic locations, (3) evaluate habitat u… more
Date: November 12, 2008
Creator: Derek Hall, Paul Greger
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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An Aerial Radiological Survey of the Yucca Mountain Project Proposed Land Withdrawal and Adjacent Areas

Description: An aerial radiological survey of the Yucca Mountain Project (YMP) proposed land withdrawal was conducted from January to April 2006, and encompassed a total area of approximately 284 square miles (73,556 hectares). The aerial radiological survey was conducted to provide a sound technical basis and rigorous statistical approach for determining the potential presence of radiological contaminants in the Yucca Mountain proposed Land withdrawal area. The survey site included land areas currently man… more
Date: July 1, 2006
Creator: Craig Lyons, Thane Hendricks
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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