10{times} reduction imaging at 13.4nm (open access)

10{times} reduction imaging at 13.4nm

A Schwarzschild imaging system has been designed to achieve 0.1 {mu}m resolution in a 0.4 mm diameter field of view when operated at a center wavelength of 13.4 nm. A decentered aperture is located on the convex primary resulting in an unobstructed numerical aperture of 0.08 and a corresponding depth of field of {plus_minus} 1 {mu}m. The Schwarzschild imaging objective is part of a five-reflection system containing the laser plasma source (LPS), condensing optics, turning mirror and reflection mask as shown in Figure 1. Extreme ultraviolet (EUV) radiation is generated by impinging a laser beam onto a copper target. The plasma source is driven by a Lambda Physik PLX 250 KrF excimer laser emitting 0.6 Joule, 20 ns pulses at a 200 Hz maximum repetition rate. Measurements of the source indicate that the full-width-half-maximum diameter is less than 100 {mu}m.
Date: August 1, 1994
Creator: Tichenor, D. A.; Kubiak, G. D. & Malinowski, M. E.
Object Type: Article
System: The UNT Digital Library
The 12-GeV/c beam transfer and absorber lines for the Superconducting Super Collider (open access)

The 12-GeV/c beam transfer and absorber lines for the Superconducting Super Collider

The beam optics of the 12-GeV/c proton beam transfer line between the Low Energy Booster (LEB) and the Medium Energy Booster (MEB) at the Superconducting Super Collider is presented. The beam is extracted from the LEB vertically and is injected into the MEB through a vertical Lambertson magnet and a horizontal kicker. The beamline has high flexibility for amplitude and dispersion function matching. Effects of various errors in the transfer line are studied, and a beam position correction scheme is proposed. The beam optics of the 12-GeV/c absorber line transporting the beam from the LEB to an absorber during the LEB commissioning is also presented.
Date: August 1, 1994
Creator: Mao, N.; McGill, J.; Gerig, R. & Brown, K.
Object Type: Report
System: The UNT Digital Library
100 Hour Test of the Pressurized Woodchip-Fired Gravel Bed Combustor (open access)

100 Hour Test of the Pressurized Woodchip-Fired Gravel Bed Combustor

Combustion of wood chips in a packed bed combustor for a gas turbine cogeneration system is described. A discussion on flue gas emissions and mass balances is included.
Date: August 1, 1994
Creator: Ragland, Kenneth W. & Aerts, Danny J.
Object Type: Report
System: The UNT Digital Library
118-B-1 excavation treatability test procedures (open access)

118-B-1 excavation treatability test procedures

This treatability study has two purposes: to support development of the approach to be used for burial ground remediation, and to provide specific engineering information for the design of burial grounds receiving waste generated from the 100 Area removal actions. Data generated from this test will also provide performance and cost information necessary for detailed analysis of alternatives for burial ground remediation. Further details on the test requirements, milestones and data quality objectives are described in detail in the 118-B-1 Excavation Treatability Test Plan (DOE/RL-94-43). These working procedures are intended for use by field personnel to implement the requirements of the milestone. A copy of the detailed Test Plan will be kept on file at the on-site field support trailer, and will be available for review by field personnel.
Date: August 1, 1994
Creator: Frain, J. M.
Object Type: Report
System: The UNT Digital Library
222-S laboratory complex hazards assessment (open access)

222-S laboratory complex hazards assessment

The US Department of Energy (DOE) Order 5500.3A, Emergency Planning and Preparedness for Operational Emergencies, requires that a facility specific hazards assessment be performed to support Emergency Planning activities. The Hazard Assessment establishes the technical basis for the Emergency Action Levels (EALs) and the Emergency Planning Zone (EPZ). Emergency Planning activities are provided under contract to DOE through the Westinghouse Hanford Company (WHC). This document represents the facility specific hazards assessment for the Hanford Site 222-S Laboratories. The primary mission of 222-S is to provide analytic chemistry support to the Waste Management, Chemical Processing, and Environmental programs at the Hanford Site.
Date: August 29, 1994
Creator: Broz, R. E.
Object Type: Report
System: The UNT Digital Library
241-U-701 new compressor building and instrument air piping analyses (open access)

241-U-701 new compressor building and instrument air piping analyses

Building anchorage analysis is performed to qualify the design of the new compressor building foundation given in the ECN ``241-U-701 New Compressor Building.`` Recommendations for some changes in the ECN are made accordingly. Calculations show that the 6-in.-slab is capable of supporting the pipe supports, and that the building foundation, air compressor and dryer anchorage, and electric rack are adequate structurally. Analysis also shows that the instrument air piping and pipe supports for the compressed air system meet the applicable code requirements and are acceptable. The building is for the U-Farm instrument air systems.
Date: August 25, 1994
Creator: Huang, F. H.
Object Type: Report
System: The UNT Digital Library
300 Area Process Trenches Closure Plan (open access)

300 Area Process Trenches Closure Plan

Since 1987, Westinghouse Hanford Company has been a major contractor to the US Department of Energy, Richland Operations Office and has served as co-operator of the 300 Area Process Trenches, the waste management unit addressed in this closure plan. For the purposes of the Resource Conservation and Recovery Act, Westinghouse Hanford Company is identified as ``co-operator.`` The 300 Area Process Trenches Closure Plan (Revision 0) consists of a Resource Conservation and Recovery Act Part A Dangerous Waste Permit Application, Form 3 and a Resource Conservation and Recovery Act Closure Plan. An explanation of the Part A Permit Application, Form 3 submitted with this document is provided at the beginning of the Part A Section. The closure plan consists of nine chapters and six appendices. The 300 Area Process Trenches received dangerous waste discharges from research and development laboratories in the 300 Area and from fuels fabrication processes. This waste consisted of state-only toxic (WT02), corrosive (D002), chromium (D007), spent halogenated solvents (F001, F002, and F003), and spent nonhalogented solvent (F005). Accurate records are unavailable concerning the amount of dangerous waste discharged to the trenches. The estimated annual quantity of waste (item IV.B) reflects the total quantity of both regulated and …
Date: August 15, 1994
Creator: Luke, S. N.
Object Type: Report
System: The UNT Digital Library
308 Building zone I stabilization and confinement (open access)

308 Building zone I stabilization and confinement

The 308 Building located on the Hanford Site near Richland, Washington, is currently in transition to shutdown status. After this transition is complete, the facility will be maintained/surveilled and given to the U.S. Department of Energy Office of Facility Transition and Management (EM-60) for utilization, remedial action, or decontamination and decommissioning (D&D). This may require that the facility be maintained in the shutdown status for as long as 30 yrs. To date, all of the special nuclear material (SNM) has been removed, potential fuel supply equipment preserved, surplus materials and equipment excessed, and enclosure cleanup and stabilization completed. A major activity in support of the 308 Building shutdown was the cleanup and stabilization of the enclosures and surface contamination areas. This document discusses the specific designs, processes, and methods used to stabilize and confine the radiological material within the enclosure and exhaust ducts to allow the shutdown of the active support systems. The process and designs employed were effective, yet simple, and maximized the use of current technologies and commercial products.
Date: August 1, 1994
Creator: Metcalf, I. L.; Schwartz, K. E.; Rich, J. W.; Benecke, M. W. & Lanham, G. W.
Object Type: Article
System: The UNT Digital Library
309 Building transition plan (open access)

309 Building transition plan

The preparation for decontamination and decommissioning (transition) of the 309 Building is projected to be completed by the end of the fiscal year (FY) 1998. The major stabilization and decontamination efforts include the Plutonium Recycle Test Reactor (PRTR), fuel storage and transfer pits, Transfer Waste (TW) tanks and the Ion Exchange Vaults. In addition to stabilizing contaminated areas, equipment, components, records, waste products, etc., will be dispositioned. All nonessential systems, i.e., heating, ventilation, and air conditioning (HVAC), electrical, monitoring, fluids, etc., will be shut down and drained/de-energized. This will allow securing of the process, laboratory, and office areas of the facility. After that, the facility will be operated at a level commensurate with its surveillance needs while awaiting D&D. The implementation costs for FY 1995 through FY 1998 for the transition activities are estimated to be $1,070K, $2,115K, $2,939K, and $4,762K, respectively. Costs include an assumed company overhead of 20% and a 30% out year contingency.
Date: August 31, 1994
Creator: Graves, C. E.
Object Type: Report
System: The UNT Digital Library
1994 conceptual model of the carbon tetrachloride contamination in the 200 West Area at the Hanford Site (open access)

1994 conceptual model of the carbon tetrachloride contamination in the 200 West Area at the Hanford Site

Between 1955 and 1973, a total of 363,000 to 580,000 L (577,000 to kg) of liquid carbon tetrachloride, in mixtures with other organic and aqueous, actinide-bearing fluids, were discharged to the soil column at three disposal facilities -- the 216-Z-9 Trench, the 216-Z-lA TiTe Field, and the 216-Z-18 Crib -- in the 200 West Area at the Hanford Site. In the mid-1980`s, dissolved carbon tetrachloride was found in the uppermost aquifer beneath the disposal facilities, and in late 1990, the US Environmental Protection Agency and the Washington State Department of Ecology requested that the US Department of Energy proceed with planning and implementation of an expedited response action (ERA) to minimize additional carbon tetrachloride contamination of the groundwater. In February 1992, soil vapor extraction was initiated to remove carbon tetrachloride from the unsaturated zone beneath these disposal facilities. By May 1994, a total of 10,560 L (16,790 kg) of carbon tetrachloride had been removed, amounting to an estimated 2% of the discharged inventory. In the spring of 1991, the Volatile Organic Compounds -- Arid Integrated Demonstration (VOC-Arid ID) program selected the carbon tetrachloride-contaminated site for demonstration and deployment of new technologies for evaluation and cleanup of volatile organic compounds and …
Date: August 1, 1994
Creator: Rohay, V. J.
Object Type: Report
System: The UNT Digital Library
24th Annual Anomalous Absorption Conference. Book of Abstracts (open access)

24th Annual Anomalous Absorption Conference. Book of Abstracts

This report contains abstracts on topics in the following areas: parametric instabilities; hohlraum physics; laser plasma physics with short pulses; and rayleigh-taylor instability and hydrodynamics.
Date: August 1, 1994
Creator: unknown
Object Type: Article
System: The UNT Digital Library
4f bands in Ce heavy fermions and mixed valent compounds at T {much_gt} T{sub K} (open access)

4f bands in Ce heavy fermions and mixed valent compounds at T {much_gt} T{sub K}

We report evidence of 4f band character in Ce 4f states at {Tau}{much_gt}{Tau}{sub K} using the technique of high-resolution angle-resolved resonant photoemission. The Ce intermetallic compound CePt{sub +x} was grown and studied in situ by the method of MBE and was characterized by LEED, XPS and XAS. These new findings would suggest a need for a reexamination of 4f photoemission in Ce compounds.
Date: August 1, 1994
Creator: Andrews, A. B.; Joyce, J. J.; Arko, A. J.; Thompson, J. D.; Tang, J.; Fisk, Z. et al.
Object Type: Article
System: The UNT Digital Library
Ablative stabilization of the Rayleigh-Taylor instability in regimes relevant to inertial confinement fusion (open access)

Ablative stabilization of the Rayleigh-Taylor instability in regimes relevant to inertial confinement fusion

As shown elsewhere an ablatively imploded shell is hydrodynamically unstable, the dominant instability being the well known Rayleigh-Taylor instability with growth rate {gamma} = {radical}Akg where k = 2{pi}/{lambda} is the wave number, g is the acceleration and A the Attwood number ({rho}{sub hi} {minus} {rho}{sub lo})/({rho}{sub hi} + {rho}{sub lo}) where {rho}{sub hi} is the density of the heavier fluid and {rho}{sub lo} is the density of the lighter fluid. A theoretical understanding of ablative stabilization has gradually evolved, confirmed over the last five years by experiments. The linear growth is very well understood with excellent agreement between experiment and simulation for planar geometry with wavelengths in the region of 30--100{mu}m. There is an accurate, albeit phenomenological dispersion relation. The non-linear growth has been measured and agrees with calculations. In this lecture, the authors go into the fundamentals of the Rayleigh-Taylor instability and the experimental measurements that show it is stabilized sufficiently by ablation in regimes relevant to ICF.
Date: August 4, 1994
Creator: Kilkenny, J. D.
Object Type: Article
System: The UNT Digital Library
Abstracts of contributed papers (open access)

Abstracts of contributed papers

This volume contains 571 abstracts of contributed papers to be presented during the Twelfth US National Congress of Applied Mechanics. Abstracts are arranged in the order in which they fall in the program -- the main sessions are listed chronologically in the Table of Contents. The Author Index is in alphabetical order and lists each paper number (matching the schedule in the Final Program) with its corresponding page number in the book.
Date: August 1, 1994
Creator: unknown
Object Type: Article
System: The UNT Digital Library
[Accelerator physics R&D] (open access)

[Accelerator physics R&D]

This report discusses the NEPTUN-A experiment that will study spin effects in violent proton-proton collisions; the Siberian snake tests at IUCF cooler ring; polarized gas jets; and polarized proton acceleration to 1 TeV at Fermilab.
Date: August 22, 1994
Creator: Krisch, A. D.
Object Type: Report
System: The UNT Digital Library
Accelerators for heavy ion inertial fusion: Progress and plans (open access)

Accelerators for heavy ion inertial fusion: Progress and plans

The Heavy Ion Inertial Fusion Program is the principal part of the Inertial Fusion Energy Program in the Office of Fusion Energy of the U.S. Department of Energy. The emphasis of the Heavy Ion Program is the development of accelerators for fusion power production. Target physics research and some elements of fusion chamber development are supported in the much larger Inertial Confinement Fusion Program, a dual purpose (defense and energy) program in the Defense Programs part of the Department of Energy. The accelerator research program will establish feasibility through a sequence of scaled experiments that will demonstrate key physics and engineering issues at low cost compared to other fusion programs. This paper discusses progress in the accelerator program and outlines how the planned research will address the key economic issues of inertial fusion energy.
Date: August 1, 1994
Creator: Bangerter, R. O.; Friedman, A. & Herrmannsfeldt, W. B.
Object Type: Article
System: The UNT Digital Library
Acceptance test procedure for C-018H, 242-A evaporator/PUREX plant process condensate treatment facility (open access)

Acceptance test procedure for C-018H, 242-A evaporator/PUREX plant process condensate treatment facility

This Acceptance Test Procedure (ATP) has been prepared to demonstrate that the Electrical/Instrumentation system function as required for this facility. Each company or organization participating in this ATP will designate personnel to assume the responsibilities and duties as defined herein for their respective roles.
Date: August 16, 1994
Creator: Parrish, D. E.
Object Type: Report
System: The UNT Digital Library
Acceptance test procedure for the 241-SY-101 flexible receiver gamma detector system (open access)

Acceptance test procedure for the 241-SY-101 flexible receiver gamma detector system

This Acceptance Test Procedure is for the 241-SY-101 Flexible Receiver Gamma Detector System.
Date: August 1, 1994
Creator: Aftanas, B.L.
Object Type: Report
System: The UNT Digital Library
Accounting for segment correlations in segmented gamma-ray scans (open access)

Accounting for segment correlations in segmented gamma-ray scans

In a typical segmented gamma-ray scanner (SGS), the detector`s field of view is collimated so that a complete horizontal slice or segment of the desired thickness is visible. Ordinarily, the collimator is not deep enough to exclude gamma rays emitted from sample volumes above and below the segment aligned with the collimator. This can lead to assay biases, particularly for certain radioactive-material distributions. Another consequence of the collimator`s low aspect ratio is that segment assays at the top and bottom of the sample are biased low because the detector`s field of view is not filled. This effect is ordinarily countered by placing the sample on a low-Z pedestal and scanning one or more segment thicknesses below and above the sample. This takes extra time, however, We have investigated a number of techniques that both account for correlated segments and correct for end effects in SGS assays. Also, we have developed an algorithm that facilitates estimates of assay precision. Six calculation methods have been compared by evaluating the results of thousands of simulated, assays for three types of gamma-ray source distribution and ten masses. We will report on these computational studies and their experimental verification.
Date: August 1, 1994
Creator: Sheppard, G. A.; Prettyman, T. H. & Piquette, E. C.
Object Type: Article
System: The UNT Digital Library
An accurate nucleon-nucleon potential with charge-independence breaking (open access)

An accurate nucleon-nucleon potential with charge-independence breaking

The authors present a new high-quality nucleon-nucleon potential with explicit charge dependence and charge asymmetry, which they designate Argonne {upsilon}{sub 18}. The model has a charge-independent part with fourteen operator components that is an updated version of the Argonne {upsilon}{sub 14} potential. Three additional charge-dependent and one charge-asymmetric operators are added, along with a complete electromagnetic interaction. The potential has been fit directly to the Nijmegen pp and np scattering data base, low-energy nn scattering parameters, and deuteron binding energy. With 40 adjustable parameters it gives a {chi}{sup 2} per datum of 1.09 for 4,301 pp and np data in the range 0--350 MeV.
Date: August 1, 1994
Creator: Wiringa, R. B.; Stoks, V. G. J. & Schiavilla, R.
Object Type: Article
System: The UNT Digital Library
Acoustic Emission: The First Half Century (open access)

Acoustic Emission: The First Half Century

The technology of acoustic emission (AE) is approaching the half century mark, having had its beginning in 1950 with the work of Joseph Kaiser. During the 1950s and 1960s researchers delved into the fundamentals of acoustic emission, developed instrumentation specifically for AE, and characterized the AE behavior of many materials. AE was starting to be recognized for its unique capabilities as an NDT method for monitoring dynamic processes. In the decade of the 1970s research activities became more coordinated and directed with the formation of the working groups, and its use as an NDT method continued to increase for industrial applications. In the 1980s the computer became a basic component for both instrumentation and data analysis, and today it has sparked a resurgence of opportunities for research and development. Today we are seeing a transition to waveform-based AE analysis and a shift in AE activities with more emphasis on applications than on research. From the beginning, we have been fortunate to have had so many dedicated savants with different fields of expertise contribute in a collective way to bring AE to a mature, fully developed technology and leave a legacy of knowledge recorded in its literature. AE literature has been …
Date: August 1, 1994
Creator: Drouillard, Thomas F.
Object Type: Article
System: The UNT Digital Library
Acoustic resonance spectroscopy intrinsic seals (open access)

Acoustic resonance spectroscopy intrinsic seals

We have begun to quantify the ability of acoustic resonance spectroscopy (ARS) to detect the removal and replacement of the lid of a simulated special nuclear materials drum. Conceptually, the acoustic spectrum of a container establishcs a baseline fingerprint, which we refer to as an intrinsic seal, for the container. Simply removing and replacing the lid changes some of the resonant frequencies because it is impossible to exactly duplicate all of the stress patterns between the lid and container. Preliminary qualitative results suggested that the ARS intrinsic seal could discriminate between cases where a lid has or has not been removed. The present work is directed at quantifying the utility of the ARS intrinsic seal technique, including the technique`s sensitivity to ``nuisance`` effects, such as temperature swings, movement of the container, and placement of the transducers. These early quantitative tests support the potential of the ARS intrinsic seal application, but also reveal a possible sensitivity to nuisance effects that could limit environments or conditions under which the technique is effective.
Date: August 1, 1994
Creator: Olinger, C. T.; Burr, T. & Vnuk, D. R.
Object Type: Article
System: The UNT Digital Library
Activation of the jun-D gene in human myeloid cells by 1-{beta}-D-arabinofuranosylcytosine (open access)

Activation of the jun-D gene in human myeloid cells by 1-{beta}-D-arabinofuranosylcytosine

None
Date: August 1, 1994
Creator: Kharbanda, S.; Kufe, D. & Huberman, E.
Object Type: Report
System: The UNT Digital Library
Active neutron multiplicity analysis and Monte Carlo calculations (open access)

Active neutron multiplicity analysis and Monte Carlo calculations

Active neutron multiplicity measurements of high-enrichment uranium metal and oxide samples have been made at Los Alamos and Y-12. The data from the measurements of standards at Los Alamos were analyzed to obtain values for neutron multiplication and source-sample coupling. These results are compared to equivalent results obtained from Monte Carlo calculations. An approximate relationship between coupling and multiplication is derived and used to correct doubles rates for multiplication and coupling. The utility of singles counting for uranium samples is also examined.
Date: August 1, 1994
Creator: Krick, M. S.; Ensslin, N.; Langner, D. G.; Miller, M. C.; Siebelist, R.; Stewart, J. E. et al.
Object Type: Article
System: The UNT Digital Library