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Reconciliation Report

Description: Reconciliation report with an ending account balance of $425.00 reconciled for the period ending on March 30, 2001.
Date: April 9, 2001
Partner: UNT Libraries Special Collections
open access

SEA - A Simplified Employee Assessment

Description: This paper presents a proposal for modifying the current employee annual evaluation process in SCAD. It purports to simplify that process, primarily by breaking up the resultant document into a set of more or less independent components. It claims to reduce the overall time and effort required from each actor.
Date: April 23, 2001
Creator: Busby, L
Partner: UNT Libraries Government Documents Department
open access

The Search for Meterorites with Complex Exposure Histories Amoung Ordinary Chondrites with Low 3HE/21NE Ratios

Description: In calculating cosmic-ray exposure ages of meteorites it is generally assumed that the meteoroids were expelled from a shielded position within their parent body and then experienced a single stage exposure before colliding with Earth. The combination of noble gas and radionuclide measurements in several large meteorites, such as Jilin and Bur Ghelaui, have revealed complex exposure histories: i.e. an initial exposure on the surface of an asteroid (or within meter-sized meteoroid), followed by … more
Date: April 30, 2001
Creator: Welton, K C; Nishiizumi, K & Caffee, M W
Partner: UNT Libraries Government Documents Department
open access

Testing a Variety of Encryption Technologies

Description: Review and test speeds of various encryption technologies using Entrust Software. Multiple encryption algorithms are included in the product. Algorithms tested were IDEA, CAST, DES, and RC2. Test consisted of taking a 7.7 MB Word document file which included complex graphics and timing encryption, decryption and signing. Encryption is discussed in the GIAC Kickstart section: Information Security: The Big Picture--Part VI.
Date: April 9, 2001
Creator: Henson, T J
Partner: UNT Libraries Government Documents Department
open access

Bromine Safety

Description: The production and handling in 1999 of about 200 million kilograms of bromine plus substantial derivatives thereof by Great Lakes Chemical Corp. and Albemarle Corporation in their southern Arkansas refineries gave OSHA Occupational Injury/Illness Rates (OIIR) in the range of 0.74 to 1.60 reportable OIIRs per 200,000 man hours. OIIRs for similar industries and a wide selection of other U.S. industries range from 1.6 to 23.9 in the most recent OSHA report. Occupational fatalities for the two comp… more
Date: April 9, 2001
Creator: Meyers, B
Partner: UNT Libraries Government Documents Department
open access

Application of Gaseous Laser Targets and Optical Diagnostics to Study High Mach Number Unstable Plasma Flows

Description: The information that can be obtained from current laser driven high Mach number (compressible) hydrodynamics experiments using solid targets and foams is limited by the need to use X-ray diagnostics. These do well at providing the shape of gross 2D structures which we model well, but are a long way from being able to reveal detailed information at the smaller spatial scales, or in 3D turbulent flows, where most of the modeling uncertainties exist. Remedying this is, and will continue to be, an … more
Date: April 1, 2001
Creator: Edwards, J; MacKinnon, A & Robey, H
Partner: UNT Libraries Government Documents Department
open access

200 West Area Dust Mitigation Strategies

Description: Various strategies were developed for the purpose of mitigating respirable dust experienced at facilities in the southwest corner of the 200 West Area. These strategies focused on treatment of that portion of the dust source located within the 200 West Expansion Area. Strategies included direct shielding of the facilities via establishment of a poplar windbreak and installation of an artificial windscreen; soil stabilization via seeding of herbaceous plants, soil fixatives, straw crimping, stra… more
Date: April 12, 2001
Creator: Sackschewsky, Michael R. & Becker, James M.
Partner: UNT Libraries Government Documents Department
open access

Rongelap Resettlement Support-Preliminary Report Part 1 - In-Situ Gamma Spectrometric Measurements around the Service and Village Area on Rongelap Island

Description: The combined remedial measures of limited soil removal and addition of coral fill have been very effective in reducing the external {sup 137}Cs exposure in and around the proposed service and village area on Rongelap Island. The average effective dose for a year's occupancy within the village has been reduced from about 19 to 0.6 mrem y{sup -1}, and is below the target level of 1 mrem y{sup -1} recommended to RALGOV. Some additional actions could be taken to reduce the external dose around spec… more
Date: April 1, 2001
Creator: Hamilton, T; Kehl, S; Brunk, J; Gouveia, F & Robison, W
Partner: UNT Libraries Government Documents Department
open access

Hydro*Star: A Directed Water-Cooled DD-Fueled IFE Fusion-Chamber Concept

Description: We introduce a new IFE fusion-chamber concept called Hydro*Star that uses DT-ignited DD targets and a water blanket. The driver can be either a 13 to 16-MJ diode-pumped solid-state laser (DPSSL) with fast ignition, or a 4-MJ heavy-ion accelerator operating at a reprate 10 times faster than the fusion chamber to accumulate sufficient energy in storage rings to direct 40 MJ at the target. The driver employs a prepulse system to burn an ionized path through the ambient fusion-chamber vapors, whose… more
Date: April 1, 2001
Creator: Orth, C D
Partner: UNT Libraries Government Documents Department
open access

X-Ray Dose and Spot Size Calculations for the DARHT-II Distributed Target

Description: The baseline DARHT-II converter target consists of foamed tantalum within a solid-density cylindrical tamper. The baseline design has been modified by D. Ho to further optimize the integrated line density of material in the course of multiple beam pulses. LASNEX simulations of the hydrodynamic expansion of the target have been performed by D. Ho (documented elsewhere). The resulting density profiles have been used as inputs in the MCNP radiation transport code to calculate the X-ray dose and sp… more
Date: April 5, 2001
Creator: McCarrick, J
Partner: UNT Libraries Government Documents Department
open access

Experimental Results in Support of Simulating Progressive Crush in Carbon-Fiber Textile Composites

Description: This report summarizes the findings of an experimental program conducted to support the modeling of the crush behavior of triaxial braid carbon fiber composites. The matrix material as well as braided panels and tubes were characterized in order to determine material properties, to assess failure modes, and to provide a test bed for new analytical and numerical tools developed specifically for braided composites. The matrix material selected by the ACC was an epoxy vinyl ester (Ashland Hetron 9… more
Date: April 2, 2001
Creator: DeTeresa, S J; Allison, L M; Cunningham, B J; Freeman, DC; Saculla, M D; Sanchez, R J et al.
Partner: UNT Libraries Government Documents Department
open access

Ultrasonic Characterization of Potting Voids (An interim report)

Description: This interim report summarizes the efforts to date to develop an ultrasonic technique for detecting and sizing potting voids between a high explosive material and a metallic baclung. This report presents the results for two tasks. The first task was to establish that ultrasonic energy penetrates LX-17. Then once the acoustic properties of LX-17 were measured, a demonstration experiment substantiated that voids could be detected and imaged.
Date: April 23, 2001
Creator: Quarry, M & Thomas, G
Partner: UNT Libraries Government Documents Department
open access

Mass and Density, Criticality Relationship

Description: Here I present some well known relationships that allow the variation in critical mass versus density to be written in a simple analytical form; these relationships have appeared extensively in the open literature for over 50 years, but seem to be periodically forgotten. These relationships are exact for bare, homogeneous systems, and approximate [but reasonably accurate] for reflected systems. With these relationships anyone can quickly estimate the critical mass corresponding to any given den… more
Date: April 10, 2001
Creator: Cullen, D E
Partner: UNT Libraries Government Documents Department
open access

Evaluations of the 253U/238U Isotope Ratio through Thick-Walled Containers using the 185.7 keV and 1001.0 keV Gamma Rays

Description: The non-destructive determination of isotope ratios (NDA) present in plutonium- and uranium-bearing materials is best accomplished with a MultiGroup Analysis methodology on spectral data obtained with high-resolution germanium detector systems. This methodology is currently employed in codes such as MGA, MGAU or U235. The MGA code, for example, works well on Pu samples and employs a number of isolated spectral lines in the analysis. The algorithm uses Gaussian and Lorentzian peak shapes that ar… more
Date: April 13, 2001
Creator: Lanier, R G; Hayden, C F; Clark, D & Parker, W E
Partner: UNT Libraries Government Documents Department
open access

Using Fport on Windows NT to Map Applications to Open Ports

Description: To develop defense-in-depth computer security, an understanding of various vulnerabilities must be realized before a protection strategy is developed. One element to minimize vulnerabilities is to develop computer security policies, and these policies must be in practice. In addition, risk assessments should be performed, and the highest risk-factor vulnerabilities must be eliminated promptly. A commonly accepted computer security policy usually starts with a firewall being established at the c… more
Date: April 9, 2001
Creator: Henson, T J
Partner: UNT Libraries Government Documents Department
open access

HULLAC-based Simulations of Non-LTE Emission Spectra

Description: This document describes the calculations I have carried out to synthesize spectra for test cases Ar1, Ge1, Ba1 and Au1. First, a brief description of how HULLAC generates atomic data is presented. Next, the implementation of those data in a collisional-radiative (CR) model is described. Two approaches are taken: First, the HULLAC data are entered into the CR rate matrix, and the relative populations of each ion charge state as given by an off-line Monte Carlo calculation are used to constrain t… more
Date: April 12, 2001
Creator: Fournier, K B
Partner: UNT Libraries Government Documents Department
open access

Plutonium Immobilization Task 5.6 Metal Conversion: Milestone Report - Perform Feasibility Demonstrations on Pu-Al Alloys

Description: The Plutonium Conversion Task within the Plutonium Immobilization Program (PIP) transforms incoming plutonium (Pu) feed materials into an oxide acceptable for blending with ceramic precursors. One of the feed materials originally planned for PIP was unirradiated fuel, which consisted mainly of the Zero Power Plutonium Reactor (ZPPR) fuel. Approximately 3.5 metric tons of Pu is in ZPPR fuel. The ZPPR fuel is currently stored at the Argonne National Laboratory-West as stainless steel clad metal p… more
Date: April 12, 2001
Creator: Zundelevich, Y; Kerns, J & Bannochie, C
Partner: UNT Libraries Government Documents Department
open access

Hanford Science and Technology Program: Reaction Transport Experiments Investigating the Migration of 137Cs in Sediments Beneath the Hanford SX Tank Farm

Description: Over one million gallons of high-level-waste with more than a million curies of {sup 137}Cs have leaked from Hanford tank farms to the sediments beneath the tanks. Early on, it was assumed that cesium migration would be limited because laboratory experiments had shown that cesium strongly sorbs to phyllosilicate minerals common in soils [1-5]. Additionally, minimal cesium desorption has been observed in contaminated Hanford sediments [6]. However, recent observations beneath the Hanford tank fa… more
Date: April 18, 2001
Creator: Carroll, Susan; Steefel, Carl; Zhao, Pihong & Roberts, Sarah
Partner: UNT Libraries Government Documents Department
open access

Application of the Recent ARF1 Calibration Measurements to the Pbar RF Curve Loading Console Application (P2)

Description: The P2 console application (Antiproton Source RF Files) calculates frequency and voltage curves from a sequence of command statements input by the user. P2 initially calculates these curves in terms of the actual frequencies and voltages required on the RF cavity as a function of time. These curves are then converted to the appropriate low-level drive voltages that will cause the RF system high-level electronics to generate the required frequency and voltage ramps. The low-level drive ramps are… more
Date: April 21, 2001
Creator: Werkema, Steve
Partner: UNT Libraries Government Documents Department
open access

ARF1 Frequency and Amplitude Curve Calibration

Description: ARF1 was calibrated and checked on 4/18/01. The technique used was to set the start/stop timers (A:R1LLT1 and A:R1LLT2) for duration of 200 msec. Driving the cavities for longer than 200 msec at full voltage could put some stress on the Hipotronics anode supply. The Camac curve generator card was substituted with a precision DC voltage source. Data for both amplitude and frequency were taken with the DC source. A HP 8563A spectrum analyzer in zero span with resolution bandwidth of 1 MHz at a ce… more
Date: April 20, 2001
Creator: Pasquinelli, Ralph J.
Partner: UNT Libraries Government Documents Department
open access

Proposal for Drell-Yan Measurements of Nucleon and Nuclear Structure with the FNAL Main Injector

Description: We propose measuring the fractional momentum $(x)$ dependence of the ratio of the anti-down to anti-up quark distributions in the proton, $\bar{d}(x)/\bar{u}(x)$, using proton induced Drell-Yan reactions at 120 GeV. Recent measurements by FNAL E866 unexpectedly show considerable $x$ dependence in this ratio for $x$ > 0.2. A lower energy primary proton beam from the Main Injector makes it possible to extend the E866 measurements to larger x with much higher precision. The apparatus will also be … more
Date: April 1, 2001
Creator: Isenhower, L. D.; Sadler, M. E.; Arrinton, J.; Geesamn, D. F.; Holt, R. J.; Jackson, H. E. et al.
Partner: UNT Libraries Government Documents Department
open access

Water Velocity Measurement on an Extended-Length Submerged Bar Screen at John Day Dam

Description: This report describes a study of water velocity around an extended-length submerged bar screen (ESBS) at John Day Dam. The study was conducted for the U.S. Army Corps of Engineers by AScI Corporation and MEVATEC Corporation in March of 2000. This report was prepared by Pacific Northwest National Laboratory. ESBS are being studied as one method for diverting juvenile migrating fish from the dam's turbine intakes into the gate well and through the juvenile fish bypass channels.
Date: April 2, 2001
Creator: Weiland, Mark A. & Escher, Charles
Partner: UNT Libraries Government Documents Department
open access

Role of Microstructural Phenomena in Magnetic Thin Films. Final Report

Description: Over the period of the program we systematically varied microstructural features of magnetic thin films in an attempt to better identify the role which each feature plays in determining selected extrinsic magnetic properties. This report summarizes the results.
Date: April 30, 2001
Creator: Laughlin, D. E. & Lambeth, D. N.
Partner: UNT Libraries Government Documents Department
open access

Visual Sample Plan Version 1.0 User's Guide

Description: This user's guide describes Visual Sample Plan (VSP) Version 1.0 and provides instructions for using the software. VSP selects the appropriate number and location of environmental samples to ensure that the results of statistical tests performed to provide input to environmental decisions have the required confidence and performance. VSP Version 1.0 provides sample-size equations or algorithms needed by specific statistical tests appropriate for specific environmental sampling objectives. The e… more
Date: April 13, 2001
Creator: Davidson, James R.; Hassig, Nancy L.; Wilson, John E. & Gilbert, Richard O.
Partner: UNT Libraries Government Documents Department
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