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Addendum to the Closure Report for Corrective Action Unit 92: Area 6 Decon Pond Facility, Nevada Test Site, Nevada

Description: The following is an addendum to the 'Closure Report for Corrective Action Unit 92: Area 6 Decontamination Pond, Nevada Test Site, Nevada', DOE/NV/11718--306, dated April 1999. This addendum includes Use Restriction Information forms and survey maps for CAS 06-04-01, Decon Pad Oil/Water Separator, and CAS 06-05-02, Decontamination Pond (RCRA), that were inadvertently left out of the Closure Report when it was published as a final document.
Date: June 1, 2007
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Aerial Radiological Survey of Selected Areas of the City of North Las Vegas

Description: As part of the proficiency training for the Radiological Mapping mission of the Aerial Measuring System (AMS), a survey team from the Remote Sensing Laboratory-Nellis (RSL-Nellis) conducted an aerial radiological survey of selected areas of the city of North Las Vegas for the purpose of mapping natural radiation background and locating any man-made radioactive sources. Survey areas were selected in collaboration with the City Manager's office and included four separate areas: (1) Las Vegas Moto… more
Date: June 1, 2008
Creator: Wasiolek, Piotr
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental Challenges for the Nuclear Diagnostics on the NIF and LMJ

Description: The National Ignition Facility (NIF) and Laser Mega Joule (LMJ) facilities are currently under construction in the United States and France. Ignited targets at these facilities are anticipated to produce up to 1019 deuterium-tritium fusion neutrons. This will provide unprecedented opportunities and challenges for the use of nuclear diagnostics in inertial confinement fusion experiments. The NIF and LMJ nuclear diagnostics will work in a harsh radiation environment that includes neutron, hard x-… more
Date: June 27, 2007
Creator: al., K. Miller et
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The U.S. Department of Energy's Aerial Measuring System (AMS)

Description: For nearly 40 years, aerial radiological search and survey missions have been performed by the United States Department of Energy's (USDOE) Remote Sensing Laboratory (RSL). Originally created in 1967 as Aerial Measurement Operations (AMO), the AMS mission has expanded to include acquiring baseline measurements, performing periodic area monitoring, and responding to radiological emergencies. In an accident scenario, AMS fixed-wing and/or rotary-wing systems can be deployed to map radiological de… more
Date: March 1, 2008
Creator: Marianno, Craig
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Plan for Using Solar-Powered Jack Pumps to Sample Groundwater at the Nevada Test Site

Description: Groundwater is sampled from 39 monitoring wells on the Nevada Test Site (NTS) as part of the Routine Radiological Environmental Monitoring Program. Many of these wells were not designed or constructed for long-term groundwater monitoring. Some have extensive completion zones and others have obstructions such as pumps and tubing. The high-volume submersible pumps in some wells are unsuitable for long-term monitoring and result in large volumes of water that may have to be contained and character… more
Date: May 3, 2007
Creator: David Hudson, Charles Lohrstorfer, Bruce Hurley
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Facility Closure Report for T-Tunnel (U12t), Area 12, Nevada Test Site, Nevada

Description: This Facility Closure Report (FCR) has been prepared to document the actions taken to permanently close the remaining accessible areas of U12t-Tunnel (T-Tunnel) in Area 12 of the Nevada Test Site (NTS). The closure of T-Tunnel was a prerequisite to transfer facility ownership from the Defense Threat Reduction Agency (DTRA) to the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office (NNSA/NSO). Closure of the facility was accomplished with the cooperation and co… more
Date: August 1, 2008
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

FRMAC Mission Analysis: What is it, and why is it useful?

Description: In 2002, the Director of the U.S. Department of Energy's (DOE's) National Nuclear Security Administration, Division of Emergency Response, requested a team of DOE scientists, considered experts in the field of radiological consequence management, assemble and construct a mission analysis upon which the DOE could build its response program and plan for future requirements. The team developed five scenarios upon which to build the data quality objectives (DQOs) that they considered necessary to e… more
Date: March 1, 2008
Creator: Hopkins, Rhonda
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Statistical Studies on Sequential Probability Ratio Test for Radiation Detection

Description: A Sequential Probability Ratio Test (SPRT) algorithm helps to increase the reliability and speed of radiation detection. This algorithm is further improved to reduce spatial gap and false alarm. SPRT, using Last-in-First-Elected-Last-Out (LIFELO) technique, reduces the error between the radiation measured and resultant alarm. Statistical analysis determines the reduction of spatial error and false alarm.
Date: July 1, 2007
Creator: Warnick Kernan, Ding Yuan, et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Si Memory Chip as a Sensitive Neutron Detector

Description: A novel neutron detector is based on semiconductor technology. A boron-containing film is an integral part of the semiconductor device and is in physical contact with the charge-storage medium (CSM). The CSM is a proprietary cell design known as MirrorBit{trademark}, which is different from conventional memory designs such as SRAM or DRAM. The design doubles the resolution and sensitivity in the array. This enables a highly effective detection of the secondary particles, {sup 7}Li and {sup 4}He… more
Date: March 1, 2008
Creator: Quam, William
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Ecological Monitoring and Compliance Program 2007 Report

Description: In accordance with U.S. Department of Energy (DOE) Order 450.1, 'Environmental Protection Program', the Office of the Assistant Manager for Environmental Management of the DOE, National Nuclear Security Administration Nevada Site Office (NNSA/NSO) requires ecological monitoring and biological compliance support for activities and programs conducted at the Nevada Test Site (NTS). National Security Technologies, LLC (NSTec), Ecological Services has implemented the Ecological Monitoring and Compli… more
Date: March 1, 2008
Creator: Dennis Hansen, David Anderson, Derek Hall, Paul Greger, W. Kent Ostler
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Large-Scale Transport Model Uncertainty and Sensitivity Analysis: Distributed Sources in Complex Hydrogeologic Systems

Description: The Underground Test Area (UGTA) Project of the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office is in the process of assessing and developing regulatory decision options based on modeling predictions of contaminant transport from underground testing of nuclear weapons at the Nevada Test Site (NTS). The UGTA Project is attempting to develop an effective modeling strategy that addresses and quantifies multiple components of uncertainty including natural vari… more
Date: December 1, 2007
Creator: Sig Drellack, Lance Prothro
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Monitoring the Long-Term Effectiveness of Integrated Safety Management System (ISMS) Implementation Through Use of a Performance Dashboard Process

Description: This session will examine a method developed by Federal and Contractor personnel at the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office (NNSA/NSO) to examine long-term maintenance of DOE Integrated Safety Management System (ISMS) criteria, including safety culture attributes, as well as identification of process improvement opportunities. This process was initially developed in the summer of 2000 and has since been expanded to recognize the importance of s… more
Date: September 1, 2008
Creator: Barrick, Michael D. Kinney and William D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Optical alignment techniques for line-imaging velocity interferometry and line-imaging self-emulsion of targets at the National Ignition Facility (NIF)

Description: The National Ignition Facility (NIF) requires optical diagnostics for measuring shock velocities in shock physics experiments. The Velocity Interferometer System for Any Reflector (VISAR) measures shock velocities, shock breakout times, and emission of 1- to 5-mm targets at a location remote to the NIF target chamber. Three optical systems using the same vacuum chamber port each have a total track of 69 feet. All optical lenses are on kinematic mounts or sliding rails, enabling pointing accurac… more
Date: August 31, 2007
Creator: Robert M. Malone, Brent C. Frogget, Morris I. Kaufman, Thomas W. Tunnell, Robert L. Guyton, Imants P. Reinbachs, Phillip W. Watts, et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Nevada Test Site National Emission Standards for Hazardous Air Pollutants Calendar Year 2007

Description: The Nevada Test Site (NTS) is operated by the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office. From 1951 through 1992, the NTS was operated as the nation's site for nuclear weapons testing. The release of man-made radionuclides from the NTS as a result of testing activities has been monitored since the first decade of atmospheric testing. After 1962, when nuclear tests were conducted only underground, the radiation exposure to the public surrounding the NT… more
Date: June 1, 2008
Creator: Grossman, Robert & Warren, Ronald
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Optimal Knot Selection for Least-squares Fitting of Noisy Data with Spline Functions

Description: An automatic data-smoothing algorithm for data from digital oscilloscopes is described. The algorithm adjusts the bandwidth of the filtering as a function of time to provide minimum mean squared error at each time. It produces an estimate of the root-mean-square error as a function of time and does so without any statistical assumptions about the unknown signal. The algorithm is based on least-squares fitting to the data of cubic spline functions.
Date: May 15, 2008
Creator: Blair, Jerome
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Estimating Filtering Errors Using the Peano Kernel Theorem

Description: The Peano Kernel Theorem is introduced and a frequency domain derivation is given. It is demonstrated that the application of this theorem yields simple and accurate formulas for estimating the error introduced into a signal by filtering it to reduce noise.
Date: March 1, 2008
Creator: Blair, Jerome
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Mercuric Iodide Photocell Technology for Room Temperature Readout of Scintillators

Description: Mercuric iodide (HgI2) is a well known material for the direct detection of gamma rays; however, the largest volume achievable is limited by thickness of the detector, which needs to be a small fraction of the average trapping length for electrons. We are reporting here preliminary results in using HgI2 crystals to fabricate photocells used in the readout of various scintillators. The optical spectral response and efficiency of these photocells were measured and will be reported. Preliminary nu… more
Date: August 31, 2007
Creator: al., Warnick Kernan et
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

2007 Annual Summary Report for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada Test Site, Nye County, Nevada

Description: This report summarizes the results of an annual review of conditions affecting the operation of the Area 3 and Area 5 Radioactive Waste Management Sites (RWMSs) and a determination of the continuing adequacy of the performance assessments (PAs) and composite analyses (CAs). The Area 5 RWMS PA documentation consists of the original PA (Shott et al., 1998), referred to as the 1998 Area 5 RWMS PA and supporting addenda (Bechtel Nevada [BN], 2001b; 2006a). The Area 5 RWMS CA was issued as a single … more
Date: January 1, 2008
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Dynamic Characterizations of an 8-frame Half-Strip High-speed X-ray Microchannel Plate Imager

Description: High-speed microchannel plate (MCP)–based imagers are critical detectors for x-ray diagnostics employed on Z-experiments at Sandia National Laboratories (SNL) to measure time-resolved x-ray spectra and to image dynamic hohlraums. A multiframe design using eight half strips in one imager permits recordings of radiation events in discrete temporal snapshots to yield a time-evolved movie. We present data using various facilities to characterize the performance of this design. These characterizatio… more
Date: September 5, 2008
Creator: Ken Moy, Ming Wu, Craig Kruschwitz, Aric Tibbits, Matt Griffin, Greg Rochau
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Clean Slate Environmental Remediation DSA for 10 CFR 830 Compliance

Description: Clean Slate Sites II and III are scheduled for environmental remediation (ER) to remove elevated levels of radionuclides in soil. These sites are contaminated with legacy remains of non-nuclear yield nuclear weapons experiments at the Nevada Test Site, that involved high explosive, fissile, and related materials. The sites may also hold unexploded ordnance (UXO) from military training activities in the area over the intervening years. Regulation 10 CFR 830 (Ref. 1) identifies DOE-STD-1120-98 (R… more
Date: August 1, 2006
Creator: James L. Traynor, Stephen L. Nicolosi, Michael L. Space, Louis F. Restrepo
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Surface Specularity as an Indicator of Shock-induced Solid-liquid Phase Transitions in Tin

Description: When highly polished metal surfaces melt upon release after shock loading, they exhibit features that suggest significant surface changes accompany the phase transition. The reflection of light from such surfaces changes from specular (pre-shock) to diffuse upon melting. Typical of this phenomenon is the loss of signal light in velocity interferometer system for any reflector (VISAR) measurements, which usually occurs at pressures high enough to melt the free surface. Unlike many other potentia… more
Date: December 1, 2007
Creator: G. D. Stevens, S. S. Lutz, B. R. Marshall, W.D. Turley, et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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