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in publisher: "Bechtel Nevada Corporation"

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Deriving Particle Distributions from In-Line Fraunhofer Holographic Data

Holographic data are acquired during hydrodynamic experiments at the Pegasus Pulsed Power Facility at the Los Alamos National Laboratory. These experiments produce a fine spray of fast-moving particles. Snapshots of the spray are captured using in-line Fraunhofer holographic techniques. Roughly one cubic centimeter is recorded by the hologram. Minimum detectable particle size in the data extends down to 2 microns. In a holography reconstruction system, a laser illuminates the hologram as it res… more

Date: August 1997

Creator: Ciarcia, C. A.; Johnson, D. E.; Sorenson, D. S.; Frederickson, R. H.; Delanoy, A. D.; Malone, R. M. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Readiness Issues for Emergency Response Instrumentation

Issues in maintaining readiness of instruments for deployment and use in emergency response situations often differ from those in maintaining instruments for normal operations. Confunding circumstances include use or non-availability of check sources, ensuring instruments are always in calibration and operable, possible use of instruments in different climates, packaging of instrumentation for deployment, transport of instrumentation and check sources, and ensuring users are familiar with the i… more

Date: September 30, 1999

Creator: Riland, C. A.; Bowman, D. R. & Tighe, R. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Corrective Action Plan for Corrective Action Unit No. 427: Area 3 Septic Waste Systems 2 and 6 Tonopah Test Range, Nevada

This Corrective Action Plan provides the closure methods for Corrective Action Unit 427: Area 3 Septic Waste Systems (SWS) 2 and 6, located at the Tonopah Test Range. SWS 2 consists of Septic Tanks 33-4, 33-5, 33-6, and two associated leachfields. SWS 6 consists of one associated leachfield. The Area 3 SWS 2 and 6 are also known as Corrective Action Sites (CASs) 03-05-002-SW02 and 03-05-002-SW06 respectively. Site investigation activities were completed in February 1998 and are documented in th… more

Date: November 1, 1998

Creator: Nelson, Jerel G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Readiness Issues for Emergency Response Instrumentation

Issues in maintaining readiness of instruments for deployment and use in emergency response situation often differ from those in maintaining instruments for normal operations. Confunding circumstances include use of non-availability of check sources, ensuring instruments are always in calibration and operable, possible use of instruments in different climates, packaging of instrumentation for deployment, transport of instrumentation and check sources, and ensuring users are familiar with instru… more

Date: March 1, 1999

Creator: Riland, C. A.; Bowman, D. R. & Tighe, R. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Aerial Radiation Detection

An airborne system designed for the detection of radioactive sources on the soil surface from an aircraft normally senses gamma rays emitted by the source. Gamma rays have the longest path length (least attenuation) through the air of any of the common radioactive emissions and will thus permit source detection at large distances. A secondary benefit from gamma rays detection if that nearly all radioactive isotopes can be identified by the spectrum of gammas emitted. Major gaseous emissions fro… more

Date: September 30, 1999

Creator: Quam, W. M.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Plant-Stress Measurements Using Laser-Induced Fluorescence Excitation: Poland Experiment

Bechtel Nevada's Special Technologies Laboratory (STL) has been involved in remote sensing for many years, and in April 1995 STL began to study the use of active remote sensing for detecting plant stress. This work was motivated by the need to detect subsurface contamination, with the supposition that this could be accomplished by remote measurement of optical signatures from the overgrowing vegetation. The project has been a cooperative DOE/Disney effort, in which basic optical signature measu… more

Date: May 1999

Creator: Capelle, Gene & Jones, Steve

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Dynamic Radiographic Imaging

A radiographic system recently developed by American and Russian collaborators is designed to capture multiple images of a dynamic event lasting less than 10 microseconds. Various optical and electro-optical components were considered and their performance compared. The final system employed a solid crystal of lutetium oxyorthosilicate doped with cerium (LSO:Ce or LSO) for X-ray-to-light conversion with a coherent fiber optic bundle to relay the scintillator image to a streak camera with charge… more

Date: June 1, 1999

Creator: Volkov, A.; Turley, D.; Veeser, L.; Lukyanov, N.; Yegorov, N.; Baker, S. A. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Distribution of the Chuckwalla, Western Burrowing Owl, and Six Bat Species on the Nevada Test Site

Field Surveys were conducted in 1996 to determine the current distribution of several animal species of concern on the Nevada Test Site (NTS). They included the chuckwall (Sauromalus obesus), western burrowing owl (Speotyto cunicularia), and six species of bats. Nineteen chuckwallas and 118 scat locations were found during the chuckwalla field study. Eighteen western burrowing owls were found at 12 sighting locations during the 1996 field study. Of the eleven bat species of concern which might … more

Date: May 1, 1997

Creator: Willis, Cathy A.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Clean Slate 2 Revegetation and Monitoring Plan

This document is a reclamation plan for short-term and long-term stabilization of land disturbed by activities associated with interim clean-up of radionuclide-contaminated surface soil at Clean Slate 2 located northwest of the Nevada Test Site on the Nellis Air Force Range. Surface soils at Clean Slate 2 were contaminated as a result of the detonation of a device containing plutonium and depleted uranium using chemical explosives. Excavation of contaminated soils at Clean Slate 2 will follow p… more

Date: February 1, 1998

Creator: Anderson, David

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Closure Report for Corrective Action Unit 426: Cactus Spring Waste Trenches, Tonopah Test Range, Nevada

This closure report provides the documentation for closure of the Cactus Spring Waste Trenches Corrective Action Unit (CAU) 426. The site is located on the Tonopah Test Range,approximately 225 kilometers (140 miles) northwest of Las Vegas, Nevada. CAU 426 consists of one Corrective Action Site which is comprised of four waste trenches. The trenches were excavated to receive solid waste generated in support of Operation Roller Coaster, primarily the Double Tracks Test in 1963, and were subsequen… more

Date: August 8, 1998

Creator: Madsen, Dave D.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Nevada Test Site Wetlands Assessment

This report identifies 16 Nevada Test Site (NTS) natural water sources that may be classified by the U.S. Army Corps of Engineers (USACE) as jurisdictional wetlands and identifies eight water sources that may be classified as waters of the United States. These water sources are rare, localized habitats on the NTS that are important to regional wildlife and to isolated populations of water tolerant plants and aquatic organisms. No field investigations on the NTS have been conducted in the past t… more

Date: May 1, 1997

Creator: Hansen, D. J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Closure Plan for Corrective Action Unit 109: U-2bu Subsidence Crater Nevada Test Site, Nevada

The U-2bu subsidence crater, Corrective Action Unit 109, will be closed in accordance with the Resource Conservation and Recovery Act, the Nevada Division of Environmental Protection operational permit, and the Federal Facilities Agreement and Consent Order. The U-2bu subsidence crater is located in Area 2 of the Nevada Test Site. It was created in 1971 by an underground nuclear test with the name Miniata. The crater has a diameter of 288 meters (944 feet) and an approximate depth of 35 meters … more

Date: March 1, 1999

Creator: Parsons, Shannon

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Federal Radiological Monitoring and Assessment Center: Phase I Response

A Federal Radiological Monitoring and Assessment Center (FRMAC) is established in response to a Lead Federal Agency (LFA) or State request when a radiological emergency is anticipated or has occurred. The FRMAC coordinates the off-site monitoring, assessment, and analysis activities during such an emergency. The FRMAC response is divided into three phases. FRMAC Phase 1 is a rapid, initial-response capability that can interface with Federal or State officials and is designed for a quick respons… more

Date: September 30, 1999

Creator: Riland, C.; Bowman, D. R.; Lambert, R. & Tighe, R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Lithology and Stratigraphy of Holes Drilled in LANL-Use Areas of the Nevada Test Site

Geologic data for ten holes drilled in areas used by Los Alamos National Laboratory at the Nevada Test Site are presented in this report. The holes include emplacement holes, instrumentation holes, and Underground Test Area wells drilled during calendar years 1991 through 1995. For each hole a stratigraphic log, a detailed lithologic log, and one or two geologic cross sections are presented, along with a supplemental data sheet containing information about the drilling operations, geology, or r… more

Date: July 1, 1999

Creator: Prothro, Lance B.; Sigmund L. Drellack, Jr. & Allen, Brian M.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Isentropic Compression of Argon

We are studying the transition of argon from an insulator to a conductor by compressing the frozen gas isentropically to pressures at which neighboring atomic orbitals overlap sufficiently to allow some electron motion between atoms. Argon and the other rare gases have closed electron shells and therefore remain montomic, even when they solidify. Their simple structure makes it likely that any measured change in conductivity is due to changes in the atomic structure, not in molecular configurat… more

Date: August 1997

Creator: Oona, H.; Solem, J. C.; Veeser, L. R.; Ekdahl, C. A.; Rodriquez, P. J.; Younger, S. M. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

National Emission Standards for Hazardous Air Pollutants Submittal - 1998

The Nevada Test Site (NTS) is operated by the U.S. Department of Energy Nevada Operations Office (DOE/NV) as the site for nuclear weapons testing, now limited to readiness activities and experiments in support of the national Stockpile Stewardship Management Program. It is located in Nye County, Nevada, with the southeast corner about 105 km (65 mi) northwest of Las Vegas, Nevada. The NTS covers about 3,500 km2 (1,350 mi2), an area larger than Rhode Island. Its size is about 46 to 56 km (28 to … more

Date: June 1, 1999

Creator: Black, Stuart & Townsend, Yvonne

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Streamlined Approach for Environmental Restoration Closure Report for Corrective Action Unit 120: Areas 5 and 6 Aboveground Storage Tanks, Nevada Test Site, Nevada

This Closure Report provides documentation for the closure of Corrective Action Unit 120. CAU 120 consists of two Corrective Action Sites located in Areas 5 and 6 of the Nevada Test Site. CAS 05-01-01 is located in Area 5 and consists of three 45,800-liter aboveground storage tanks, piping, and debris associated with Well RNM-1. CAS 06-01-01 in Area 6 consists of two aboveground storage tanks and two tanker trailers All the CAU 120 items have been used to convey or contain radiologically contam… more

Date: June 1, 1999

Creator: Urban, Allison

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Closure Report for Corrective Action Unit 426: Cactus Spring Waste Trenches, Tonopah Test Range, Nevada

This Closure Report provides the documentation for closure of the Cactus Spring Waste Trenches Corrective Action Unit (CAU) 426. The site is located on the Tonopah Test Range, approximately 225 kilometers northwest of Las Vegas, NV. CAU 426 consists of one corrective action site (CAS) which is comprised of four waste trenches. The trenches were excavated to receive solid waste generated in support of Operation Roller Coaster, primary the Double Tracks Test in 1963, and were subsequently backfil… more

Date: August 1, 1998

Creator: Madsen, Dave

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

X-Ray Shawdowgraph Camera Design

An imagining camera that is used with X-Ray radiography systems in high explosive experiments has been built and fielded. The camera uses a 40mm diameter Micro-Channel Plate Itensifier (MCPI) for optical gain and photographic film for image recording. In the normal location of the X-ray film pack, a scintillating screen is placed instead. The camera system views the screen and records the image. The sensitivity of the MCPI to light makes the camera design sensitive to small details that a film … more

Date: January 1, 1999

Creator: McCrea, Edward J.; Doman, Michael J. & Rohde, Randy A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Determining the Performance of an Arid Zone Radioactive Waste Site Through Site Characterization, Modeling, and Monitoring

A strategy of site characterization, modeling, and monitoring are used to evaluate the performance of an interim cover at a low-level radioactive waste management site. The soil water migration papthway must be evaluated to assure the long-term isolation of low-level radioactive waste. Water balance studies using precision weighing lysimeters have been conducted for five years near the radioactive waste site ath the Nevada Test Site. The numerical flow models UNSAT-H and HYDRUS-2D were tested u… more

Date: March 9, 1999

Creator: Dozier, B. L.; Levitt, D. G.; Sully, M. J. & Lohrstorfer, and C. F.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Ecological Monitoring and Compliance Program Fiscal Year 1998 Report

The Ecological Monitoring and Compliance program, funded through the U. S. Department of Energy/Nevada Operations Office, monitors the ecosystem of the Nevada Test Site and ensures compliance with laws and regulations pertaining to NTS biota. This report summarizes the program's activities conducted by Bechtel Nevada during fiscal year 1998. Twenty-one sites for seven projects were surveyed for the presence of state or federally protected species. Three projects were in or near habitat of the t… more

Date: October 1998

Creator: Bechtel Nevada Ecological Services

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Routine Radiological Environmental Monitoring Plan. Volume 1

The U.S. Department of Energy manages the Nevada Test Site in a manner that meets evolving DOE Missions and responds to the concerns of affected and interested individuals and agencies. This Routine Radiological Monitoring Plan addressess complicance with DOE Orders 5400.1 and 5400.5 and other drivers requiring routine effluent monitoring and environmental surveillance on the Nevada Test Site. This monitoring plan, prepared in 1998, addresses the activities conducted onsite NTS under the Final … more

Date: December 31, 1999

Creator: Nevada, Bechtel

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Routine Radiological Environmental Monitoring Plan, Volume 2 Appendices

Supporting material for the plan includes: QUALITY ASSURANCE, ANALYSIS, AND SAMPLING PLAN FOR NTS AIR; QUALITY ASSURANCE, ANALYSIS, AND SAMPLING PLAN FOR WATER ON AND OFF THE NEVADA TEST SITE; QUALITY ASSURANCE, ANALYSIS, AND SAMPLING PLAN FOR NTS BIOTA; QUALITY ASSURANCE, ANALYSIS, AND SAMPLING PLAN FOR DIRECT RADIATION MONITORING; DATA QUALITY OBJECTIVES PROCESS; VADOSE ZONE MONITORING PLAN CHECKLIST.

Date: December 31, 1998

Creator: Nevada, Bechtel

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Corrective Action Plan for Corrective Action Unit 423: Area 3 Building 03-60 Underground Discharge Point, Tonopah Test Range, Nevada

The Corrective Action Plan provides the closure methods for Corrective Action Unit (CAU) 423: Area 3 Building 03-60 Underground Discharge Point (UDP), Tonoopah Test Range, Nevada. CAU 423 consists of the UDP and an associated discharge pipeline extending from Building 03-60. Corrective action investigations were completed in January 1998, and are documented in the Corrective Action Decision Document (US DOE, 1998). Results indicate an asymmetrical hydrocarbon plume, measuring 11 meters (m) 35 f… more

Date: October 31, 1998

Creator: Bechtel Nevada

Item Type: Report

Partner: UNT Libraries Government Documents Department